Faculty Profiles - KAWAGUCHI Yoichi

写真a

KAWAGUCHI Yoichi

Organization

Sado Island Center for Ecological Sustainability . Professor

External link

Research Interests

トキ野生復帰
水系ネットワークの再生
地球温暖化と生物分布予測
生態系サービス
多自然川づくりの評価
戦略的・自然再生シナリオ
GIS

Research History

Niigata University Professor

2025.9

Education

新潟大学大学院自然科学研究科環境科学専攻博士後期課程修了

2000.9

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Professional Memberships

Japan Society of Civil Engineers

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Ecological Society of Japan

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Ecology adn Civil Engineering

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日本湿地学会

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Japan Association for Landscape Ecology

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四国魚類研究会

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水源地生態研究会

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Committee Memberships

県土整備部とくしま川づくり委員会委員

2020.7 - 2022.6

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中国四国農政局国営高知南国土地改良事業専門技術者

2020.5 - 2021.3

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中国四国農政局国営吉野川北岸二期土地改良事業専門技術者

2020.5 - 2021.3

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水源地生態研究会ダム下流生態系研究部会委員

2020.4 - 2025.3

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Committee type：Academic society

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県民環境部コウノトリ里親センター設立検討委員会委員

2020.2 - 2021.3

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県民環境部徳島県希少野生生物保護検討委員会委員

2019.10 - 2021.3

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特定非営利活動法人とくしまコウノトリ基金理事

2019.7 - 2021.7

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阿南市風力発電に係るゾーニング推進協議会委員

2019.5 - 2021.3

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Committee type：Municipal

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国土交通省北陸地方整備局越後平野における生態系ネットワーク推進協議会委員

2019.5 - 2021.3

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中国四国農政局中四国農政局国営事業事前評価技術検討会委員

2019.5 - 2020.3

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徳島県中小企業団体中央会エコアクション21地域判定委員会委員

2019.4 - 2022.3

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徳島県県土整備部土木環境配慮アドバイザー

2019.4 - 2022.3

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徳島河川国道事務所吉野川流域コウノトリ・ツルの舞う生態系ネットワーク推進協議会委員

2019.4 - 2021.3

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四国地方整備局河川・渓流環境アドバイザー

2019.4 - 2021.3

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中国四国農政局中四国農政局国営事業事後評価技術検討会委員

2019.4 - 2020.3

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国土交通省四国地方整備局那賀川河川事務所那賀川総合土砂管理技術検討会委員

2018.12 - 2020.3

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国土交通省四国地方整備局那賀川河川事務所長安口ダム環境モニタリング委員会委員

2018.11 - 2020.3

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最高裁判所専門委員

2018.11 - 2019.10

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水源地生態研究会分断影響研究グループ委員

2018.4 - 2020.3

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Committee type：Academic society

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四国魚類研究会幹事

2018.4 - 2019.3

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Committee type：Academic society

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四国地方整備局四国圏域生態系ネットワーク推進協議会委員

2018.1 - 2021.3

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Central Research Institute of Electric Power Industry 再生可能エネルギー導入に寄与する森林流域環境の次世代計測・評価技術の開発評価委員会委員

2017.4 - 2020.6

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Japan Society of Civil Engineers 環境システム委員会論文審査小委員会委員兼幹事

2017.4 - 2019.3

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Committee type：Academic society

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県民環境部生物多様性とくしま戦略検討小委員会委員

2017.4 - 2018.12

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中国四国農政局中四国農政局国営事業等再評価技術検討委員会

2016.7 - 2020.3

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Ecology adn Civil Engineering 普及・連携委員会委員

2015.9 - 2022.3

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Committee type：Academic society

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Ecology adn Civil Engineering 会誌編集委員会委員

2015.9 - 2022.3

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Committee type：Academic society

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Ecology adn Civil Engineering テキスト刊行委員会委員長

2015.9 - 2022.3

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Committee type：Academic society

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Ecology adn Civil Engineering 副幹事長

2015.9 - 2019.9

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Committee type：Academic society

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海陽町教育委員会平成27年度海陽町文化財保存活用検討委員会委員

2015.9 - 2016.3

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四国地方整備局吉野川学識者会議委員

2015.5 - 2021.3

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四国地方整備局那賀川学識者会議委員

2015.5 - 2021.3

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日本湿地学会学会誌編集委員

2015.4 - 2018.3

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Committee type：Academic society

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Japan Society of Civil Engineers 調査研究部門環境システム委員会委員

2015.4 - 2017.3

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Committee type：Academic society

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徳島河川国道事務所吉野川生態系ネットワーク検討委員会委員

2014.10 - 2017.3

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中国四国農政局中国四国農政局国営等事業管理委員会委員

2014.7 - 2020.3

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県民環境部徳島県環境影響評価審査会委員

2014.4 - 2022.3

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一般財団法人水源地環境センター「水源地生態研究会」分断影響研究グループ委員

2014.4 - 2020.3

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Ecological Society of Japan 日本生態学会中国四国地区会庶務幹事

2014.4 - 2017.3

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Committee type：Academic society

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放送大学学園放送大学客員准教授

2014.4 - 2015.3

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環境省北海道地方環境事務所釧路自然環境事務所オジロワシ・オオワシ保護増殖検討会委員

2014.3 - 2020.3

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国土交通省近畿地方整備局豊岡河川国道事務所下鶴井地区圃場復元検討会委員

2014.3 - 2020.3

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四国地方整備局,那賀川河川事務所那賀川左岸堤防地震・津波対策事業環境回復モニタリング委員会委員

2013.8 - 2015.3

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徳島県県民環境部環境局環境首都課とくしま環境県民会議の委員

2013.4 - 2016.3

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放送大学学園放送大学客員教員

2013.4 - 2014.3

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Japan Society for the Promotion of Science 科学研究費委員会専門委員

2013.1 - 2013.11

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徳島県農林水産部徳島県内水面漁場管理委員会委員

2012.12 - 2016.12

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国土交通省国土技術政策総合研究所山間部河川における維持流量設定に関する検討会の委員

2012.10 - 2013.3

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環境省自然環境局野生生物課オジロワシ・オオワシ保護増殖分科会委員

2012.10 - 2013.3

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国土交通省四国地方整備局那賀川河川事務所長安口ダム環境検討委員会委員

2012.4 - 2017.3

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Japan Association for Landscape Ecology 専門幹事

2012.1 - 2013.3

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Committee type：Academic society

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Ecological Society of Japan 日本生態学会中国四国地区会役員

2010.4 - 2014.3

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Committee type：Academic society

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環境省自然環境局野生生物課野生生物保護対策検討会検討員

2009.11 - 2012.3

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Ecology adn Civil Engineering 幹事

2009.9 - 2013.9

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Committee type：Academic society

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徳島県農林水産部林業戦略課徳島県森林CO2吸収量認定委員会委員

2009.7 - 2020.3

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徳島県農林水産部ブランド戦略総局水産課漁業調整室徳島県内水面漁場管理委員会委員

2009.7 - 2012.3

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徳島県県民環境部環境局環境首都課とくしま環境県民会議の委員

2009.6 - 2012.3

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財団法人リバーフロント整備センター河川・海岸環境機能等検討委員会委員

2009.6 - 2012.3

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一般財団法人水源地環境センター「水源地生態研究会」委員

2009.5 - 2012.3

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Ecological Society of Japan 保全生態学研究編集委員会委員

2009.3 - 2021.12

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Committee type：Academic society

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Ecology adn Civil Engineering 国際交流委員

2008.4 - 2015.9

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Committee type：Academic society

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Papers

徳島県鳴門市の蓮田におけるアメリカザリガニの生息環境解析 Reviewed

Hiramatsu Hayato, Kawaguchi Yoichi, 佐藤雄大, Sugimoto Kensuke

環境システム研究論文集 79 ( 26 ) 23 - 26018 2023.11

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Language：Japanese Publishing type：Research paper (scientific journal)

DOI： 10.2208/jscejj.23-26018

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Other Link： https://tokushima-u.repo.nii.ac.jp/records/2012243
北海道北部地域を対象としたオジロワシの営巣適地推定 Reviewed

藪原佑樹, 赤坂卓美, 山田芳樹, 原拓史, 奥田篤志, Kawaguchi Yoichi

Japanese Journal of Conservation Ecology 28 ( 2 ) 281 - 292 2023.11

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Language：Japanese Publishing type：Research paper (scientific journal)

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Other Link： https://cir.nii.ac.jp/crid/1520017586047683712/
Sensitivity maps and their application to minimise the impact of wind power facilities on birds Reviewed

関島恒夫, 浦達也, 赤坂卓美, 風間健太郎, Kawaguchi Yoichi, 綿貫豊

Japanese Journal of Conservation Ecology 28 ( 2 ) 233 - 250 2023.4

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Language：Japanese Publishing type：Research paper (scientific journal)

The Japanese government has pledged to achieve carbon neutrality by 2050. To realise this goal, renewable solar, wind, hydro and geothermal power generation are now attracting attention. Wind power is expected to have great potential in Japan, and is likely to be promoted on land and sea areas. However, with the introduction of wind power generation throughout Japan, associated environmental conflicts are expected to increase. The main points of contention are noise, infrasound, landslides, water pollution, landscape aesthetics, the natural environment and birds, especially bird collisions and habitat abandonment caused by the construction of wind turbines in the habitat of rare birds of prey, such as the golden eagle Aquila chrysaetos, Hodgson's hawk eagle Nisaetus nipalensis and the white-tailed eagle Haliaeetus albicilla. Environmental conflicts are likely to increase as wind power projects are developed, to achieve the 2050 target. Therefore, the use of sensitivity maps should help prevent bird collisions and habitat abandonment. A sensitivity map shows where birds are likely to be negatively affected by the construction of wind power facilities, based on integrated information on the habitat of endangered bird species, migratory bird flyways, colony sites, overwintering areas, protected areas, etc. This review first explains the concept of a sensitivity map and describes its relation to environmental assessments. Then, we explain the features of various proposed sensitivity maps and discuss their appropriate resolution. Finally, we discuss the roles of sensitivity maps in future efforts to reconcile biodiversity conservation and the anticipated demand for renewable energy development, to attain the 2050 carbon-neutral target.

DOI： 10.18960/hozen.2114

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=412974
徳島県那賀川のダム湖群に生息するアユの遺伝的多様性と由来 Reviewed

高木基裕, 河田直樹, 山田裕貴, Kawaguchi Yoichi

Aquatic. Sci. 2 ( 71 ) 87 - 98 2023

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Language：Japanese Publishing type：Research paper (scientific journal)

DOI： 10.11233/aquaculturesci.71.87

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=412966
Toward the dissemination of sensitivity maps to prevent bird collisions Reviewed

関島恒夫, 望月翔大, 綿貫豊, Kawaguchi Yoichi

Japanese Journal of Conservation Ecology 28 ( 2 ) 229 - 232 2023

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Language：Japanese Publishing type：Research paper (scientific journal)

The generation of wind power negatively impacts bird and bat species. Therefore, bird sensitivity maps are important tools for conserving biodiversity while promoting the development of renewable energy. This special issue was created in response to Symposium S03 (``Toward the Dissemination of Sensitivity Maps to Prevent Bird Collisions''), which was held at the 65th Annual Meeting of the Ecological Society of Japan in 2018. In this special issue, seven experts at the forefront of research on the environmental impacts of wind power on birds provide their perspectives on the utility and challenges of bird sensitivity mapping.

DOI： 10.18960/hozen.2322

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=412973
Significance of small stream restoration and river network on freshwater fish diversity. Reviewed

後藤颯太, 赤坂卓美, Kawaguchi Yoichi

Ecology and Civil Engineering 26 ( 2 ) 2023

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Language：Japanese Publishing type：Research paper (scientific journal)

DOI： 10.3825/ece.22-00021

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=412968
徳島県鳴門市に造成されたビオトープとレンコン田におけるコウノトリの餌生物量調査 Reviewed

Sugimoto Kensuke, Kawaguchi Yoichi, 佐藤雄大, 阿部悠馬, Nakajima Sohta

環境システム研究論文集 50 63 - 68 2022.11

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Language：Japanese Publishing type：Research paper (scientific journal)

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Valuation of latent demand for ecotourism in Shiretoko using choice-based experiments - Latent class model to capture perference diversity - Reviewed

Ishizue Yuki, Kawaguchi Yoichi, WATANABE Kojiro, 庄子康, 佐藤雄大, 寺山元

Papers on City Planning 57 ( 3 ) 1301 - 1308 2022.10

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Language：Japanese Publishing type：Research paper (scientific journal)

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=392702
At-Sea Habitat Use of Rhinoceros Auklets Breeding in the Shelf Region of Eastern Hokkaido Reviewed

Sato Takahiro, Yabuhara Yuki, Okado Jumpei, Watanuki Yutaka, Yamauchi Akihiro, Kawaguchi Yoichi

Zoological Science Vol.39 ( No.3 ) 261 - 269 2022.6

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Language：English Publishing type：Research paper (scientific journal) Publisher：Zoological Society of Japan

DOI： 10.2108/zs210014

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Other Link： https://repo.lib.tokushima-u.ac.jp/ja/117397
Reconciling biodiversity conservation and flood risk reduction: The new strategy for freshwater protected areas Reviewed

Akasaka Takumi, Mori Terutaka, Ishiyama Nobuo, Takekawa Yuya, Kawamoto Tomonori, Inoue Mikio, Mitsuhashi Hiromune, Kawaguchi Yoichi, Ichiyanagi Hidetaka, Onikura Norio, Miyake Yo, Katano Izumi, Akasaka Munemitsu, Nakamura Futoshi

Diversity & Distributions Vol.28 ( 6 ) 1191 - 1201 2022.2

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Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1111/ddi.13517

Web of Science

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=389001
How can we conserve the organisms in paddy fields?-Biodiversity conservation and restoration in paddy water bodies.

TAWA Kota, SAGAWA Shiro, KAWAGUCHI Yoichi

Ecology and Civil Engineering 24 ( 1 ) 75 - 78 2021.7

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Language：Japanese Publisher：Ecology and Civil Engineering Society

DOI： 10.3825/ece.21-00012

CiNii Article

CiNii Books

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Other Link： http://id.ndl.go.jp/bib/031641215
Effects of sediment replenishment on riverbed environments and macroinvertebrate assemblages downstream of a dam Reviewed

Katano Izumi, Negish N. Junjiro, Minagawa Tomoko, Doi Hideyuki, Kawaguchi Yoichi, Kayaba Yuichi

Scientific Reports 11 ( 1 ) 7525 - 7525 2021.4

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Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1038/s41598-021-86278-z

Scopus

PubMed

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=412969
Time Series Changes in Fish Assemblages and Habitat Structures Caused by Partial Check Dam Removal Reviewed

Nagayama Shigeya, Ishiyama Nobuo, Seno Taro, Kawai Hideyuki, Kawaguchi Yoichi, Nakano Daisuke, Nakamura Futoshi

Water 12 ( 12 ) 3357 - 3357 2020.12

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Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

Despite a steep increase in dam removal projects, there are few studies on the biophysical responses to dam removal. In this study, we evaluated the short-term (1.5 years) and long-term (5.5 years) effects of partial check dam removal on fish assemblages and their habitats. First, the habitat preferences of fish were examined at a channel unit scale: pools, rapids, and side channels satisfied the seasonal habitat requirements of the fish assemblages. Partial check dam removal increased the abundance of these habitats and diversified the habitat structures owing to the sediment release from the dam; in contrast, the bedrock distinctly decreased 1.5 years after dam removal. However, 5.5 years after dam removal, the bedrock proportion increased, and the habitat structures were simplified again owing to the re-transportation of sediments. Similar temporal changes were also determined through a reach-scale analysis with a change in the bed materials. Anadromous Oncorhynchus masou began to spawn and recolonize in the upstream section of the dam after the dam removal, causing similar assemblage compositions between the downstream and upstream sections. The abundance of Salvelinus malma and Noemacheilus barbatulus toni in the upstream reaches decreased over time after the dam removal. The temporal changes in the biophysical responses suggest that long-term monitoring is indispensable for the reliable evaluation of dam removal effects.

DOI： 10.3390/w12123357

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Other Link： https://www.scopus.com/record/display.url?eid=2-s2.0-85097275502&origin=inward
Sensitivity mapping for seabirds and offshore wind power farms: A case study of Slaty-backed gulls in Hokkaido Reviewed

佐藤夕夏, 赤坂卓美, 藪原佑樹, 風間健太郎, Kawaguchi Yoichi

Japanese Journal of Conservation Ecology Vol.25 ( No.2 ) 2020.11

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Language：Japanese Publishing type：Research paper (scientific journal)

Offshore wind energy is a renewable energy source that offers an opportunity to reduce greenhouse gas emissions while increasing energy security. However, many ecologists have suggested that offshore wind farms may have severe negative impacts on wildlife, especially seabirds. Thus, balancing seabird conservation with human energy demands is necessary when developing wind farms. Bird sensitivity mapping is a powerful and practical tool that can determine turbine collision risk within specific areas; however, sensitivity maps have seldom been generated for seabirds. Focusing on the Slaty-backed gull (Larus schistisagus), a red-listed species that often collides with wind turbines, we determined factors affecting habitat selection with the goal of reducing negative impacts of offshore wind farms. We then generated a sensitivity map using habitat modeling. GPS loggers set to record at 5-minute intervals between June and August 2018 were attached to six Slaty-backed gulls residing in Ochiishi Bay, Nemuro Prefecture, Japan. A Gaussian mixed model indicated that habitat selection was related to food availability (as determined by sea surface temperature and chlorophyll a content) and distance to the nest site. Sea surface temperature and chlorophyll a content were positively related area visitation frequency of Slaty-backed gulls, whereas distance to nest site was negatively correlated. Moreover, area visitation frequency was unchanged when the distance from the nest site was > 25 km. The sensitivity map indicated that areas both near and far from nest sites with potentially abundant food resources were high-risk areas with respect to turbine collisions for Slaty-backed gulls. Based on these results, we advocate the use of sensitivity mapping to reduce interactions between offshore wind farms and seabirds, especially for species that often forage far from their nest sites.

DOI： 10.18960/hozen.1928

J-GLOBAL

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Other Link： https://cir.nii.ac.jp/crid/1391412881271598592/
水田への魚類の遡上を促す遡上版の開発 Reviewed

皆川明子, 若宮慎二, 竹下邦明, 佐川志朗, Kawaguchi Yoichi

Ecology and Civil Engineering 23 ( 1 ) 79 - 84 2020.9

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Language：Japanese Publishing type：Research paper (scientific journal)

DOI： 10.3825/ece.23.79

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Other Link： https://web.db.tokushima-u.ac.jp/cgi-bin/edb_browse?EID=372539
中小河川の河道内氾濫と河川合流部の重要性 Reviewed

原田守啓, 永山滋也, Kawaguchi Yoichi, 萱場祐一

Ecology and Civil Engineering Vol.23 ( No.1 ) 109 - 115 2020.9

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Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Ecology and Civil Engineering Society

DOI： 10.3825/ece.23.109

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Dietary Overlap But Spatial Gap between Sympatric Japanese Serow (Capricornis crispus) and Sika Deer (Cervus nippon) on Eastern Shikoku, Japan Reviewed

Yamashiro Asuka, Yoshinori Kaneshiro, Kawaguchi Yoichi, Yamashiro Tadashi

Mammal Study Vol.44 ( No.4 ) 261 - 267 2019.10

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Language：English Publishing type：Research paper (scientific journal)

DOI： 10.3106/ms2018-0072

Web of Science

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高知県奈半利川におけるアユ人工産卵場の利用状況モニタリング∼潜水目視調査と環境DNA分析の比較を中心に∼ Reviewed

乾隆帝, 髙橋勇夫, 後藤益滋, 赤松良久, Kawaguchi Yoichi

河川技術論文集 Vol.24 333 - 338 2018.6

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Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers

Establishment of an artificial spawning ground was started in 2003 at the Nahari River that flowing in the southeastern part of Shikoku, Kochi Prefecture, Japan, as an effort to conserve the natural resources of Plecoglossus altivelis altivelis. The results of the resource survey show that the number of drifting larvae increased remarkably and the number of upstream migrating juveniles increased and stabilized since 2005. The results of the survey of spawning in artificial spawning grounds show that P. altivelis altivelis uses the artificial spawning grounds as the main spawning ground every year. In addition, the results of environmental DNA analysis show high eDNA concentration in the samples downstream of the artificial spawning ground during the spawning season. Furthermore, during the peak spawning season, the eDNA concentration of the nighttime sample was approximately 25-fold higher than that of the daytime sample downstream of the artificial spawning ground.

DOI： 10.11532/river.24.0_333

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Significance of the stable foundations provided and created by large wood for benthic fauna in the Shibetsu River, Japan Reviewed

Nakano Daisuke, Nagayama Shigeya, Kawaguchi Yoichi, Nakamura Futoshi

Ecological Engineering Vol.120 249 - 259 2018.5

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DOI： 10.1016/j.ecoleng.2018.05.032

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Species, sex, and individual identification of Japanese serow (Capricornis crispus) and sika deer (Cervus nippon) in sympatric region based on the fecal DNA samples Reviewed

Yamashiro Asuka, Yoshinori Kanashiro, Kawaguchi Yoichi, Yamashiro Tadashi

Conservation Genetics Resources Vol.9 ( No.2 ) 333 - 338 2017.6

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DOI： 10.1007/s12686-016-0665-1

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Implementing species distribution models to predict the impact of global warming on current and future potential habitats of white-spotted char (Salvelinus leucomaenis) for effective conservation planning in Japan Reviewed

竹川有哉, Kawaguchi Yoichi, 三橋弘宗, 谷口義則

Japanese Journal of Conservation Ecology Vol.22 ( No.1 ) 121 - 134 2017.5

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ANALYSIS OF DENSITY DETERMINATE ENVIRONMENTAL FACTORS OF SEMISULCOSPIRA LIBERTINA, AND THEIR CORRELATION TO OBSERVED NUMBER OF GENJI FIREFLY (LUCIOLA CRUCIATA) IN KAWATA RIVER, MISATO, YOSHINOGAWA CITY, IN TOKUSHIMA PREFECTURE Reviewed

FUJISO Tomoki, Kawaguchi Yoichi, TAKEGAWA Yuya, YABUHARA Yuki, YAMASHIRO Asuka

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Vol.73 ( No.6 ) II_373 - II_377 2017

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 We examined relationship between environmental factors and the density of a fleshwater snail, Semisulcospira libertina, which is main prey of a Genji firefly (Luciola cruciata) lavae at seven stations in Kawata River, Misato, Tokushima Prefecture. Moreover, we examined correlation between fleshwater snail density and observed number of Genji firefly. The results showed that the density of fleshwater snail was high on lentic site and positively correlated with water depth and rock size, while negatively correlated with the current velocity. River characteristics such as lentic, deep, and rocky substrate might be suitable for fleshwater snail habitat. Estimated densities of S. libertina were strongly correlated with the observed numbers of adult Genji firefly. To conserve Genji firefly, conservation of river environments for fleshwater snail habitats are also required.

DOI： 10.2208/jscejer.73.II_373

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Towards the use of National Census on River Environments data for conservation: Issues and a case study

Masanao Sueyoshi, Takumi Akasaka, Terutaka Mori, Nobuo Ishiyama, Tomoaki Kawamoto, Yuya Takegawa, Mikio Inoue, Hiromune Mitsuhashi, Yoichi Kawaguchi, Norio Onikura, Yo Miyake, Izumi Katano, Futoshi Nakamura

Japanese Journal of Conservation Ecology 21 ( 2 ) 167 - 180 2016.11

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Towards the use of National Census on River Environments data for conservation: issues and a case study Reviewed

末吉正尚, 赤坂卓美, 森照貴, 石山信雄, 川本朋慶, Takegawa Yuya, 井上幹生, 三橋弘宗, Kawaguchi Yoichi, 鬼倉徳雄, 三宅洋, 片野泉, 中村太士

Japanese Journal of Conservation Ecology 21 ( 2 ) 167 - 180 2016.9

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With rapid declines in global riverine biodiversity, conservation is needed on a nationwide scale. Since 1990, the National Census on River Environments (NCRE) has collected meaningful data on riverine organisms and environments in Japan. However, there are several issues with using the NCRE database for scientific studies. In this study, we summarised issues related to the NCRE database, and used the 3rd NCRE dataset (2001-2005) to evaluate nationwide trends in species richness and the rarity of fishes (primarily freshwater and diadromous fishes) and taxon richness and the rarity of benthic animals (aquatic insects and shellfishes). First, we summarised data quality (e.g. monitoring sites and season) and data formatting issues (e.g. site name and species name). Second, we mitigated these potential issues as thoroughly as possible and tested the relationships of species (or taxon) richness and rarity with latitude using generalised linear models. We found that species and taxon richness showed different latitudinal distributions between primarily freshwater and diadromous fishes and between aquatic insects and shellfishes. In contrast, rarities showed spatial congruence with species diversity, suggesting that more species and rare species could be conserved in the same regions.

DOI： 10.18960/hozen.21.2_167

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連続砂防堰堤を持つ河川の水温形成に関する研究 Reviewed

鷲見哲也, 水野貴視, Kawaguchi Yoichi

Advances in River Engineering 22 475 - 480 2016.6

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吉野川河口汽水域における護岸構造と潮間帯生物の分布に関する研究と研究成果を活かした護岸構造の提案 Reviewed

Kanno Takeshi, Kawaguchi Yoichi, Takegawa Yuya

河川技術論文集 Vol.21 37 - 42 2015.6

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漁業者から見た吉野川下流域におけるアユの産卵場と河道変遷の関係 Reviewed

Terai Kazuhiro, Kawaguchi Yoichi, Muto Yasunori, Nomura Kazushi

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 6 ( 71 ) II_459 - II_465 2015.2

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FACTOR ANALYSIS OF SANDBAR DEFOMATION PROCESSES IN THE MIDDLE REACHES OF YOSHINO RIVER Reviewed

NOMURA Kazushi, Muto Yasunori, TERAI Kazuhiro, Kawaguchi Yoichi, TAMURA Takao

Journal of Japan Society of Civil Engineers, Series B1 (Hydraulic Engineering) 59 ( 4 ) I_1141 - I_1146 2015.2

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The Yoshino River, Japan, is rich in water resources, but simultaneously possesses high risk of flood disaster. River improvement works to reduce damage from the floods have been conducted which attain increase of the discharge capacity. On the other hand, local sediment deposition and scouring are growing concern by the repeated floods, decreasing of sediment supply and construction of river structure. In order to resolve these problems, it is necessary to understand the effects of natural and artificial impacts on the river channel. In this paper, the channel transition processes were studied in the Middle Yoshino River using aerial photo, morphology data. Natural and artificial impacts on those processes were evaluated from sandbar deformation, fluctuation of bed elevation and volume in low-water channel. As a result, sandbar deformation by the floods and revetment works was confirmed. The floods and dam construction affected fluctuation of river channel with the sediment deposition and scouring.

DOI： 10.2208/jscejhe.71.I_1141

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吉野川中流域における砂州地形の長期的変化に及ぼす要因分析 Reviewed

野村一至, Muto Yasunori, 寺井一弘, Kawaguchi Yoichi, TAMURA Takao

Annual Journal of Hydraulic Engineering. JSCE Vol.59 1141 - 1146 2015.2

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アカテガニを指標とした都市公園緑地の景観構成要素の機能評価 Reviewed

稲飯幸代, 四宮隆司, Kawaguchi Yoichi, Kamada Mahito

Landscape Ecology and Management ( No.19 ) 57 - 68 2014.6

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嘉瀬川ダム上下流における試験湛水開始前後での堆積・流下有機物の量的・質的変化 Reviewed

Bando Shinya, Kawaguchi Yoichi, 大串浩一郎, 野口剛志, 濱岡秀樹, 佐藤雄大, 関島恒夫, 手塚公裕

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 70 ( 6 ) 175 - 182 2014

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 We investigated the effects of sedimentary and flowing FPOM (Fine Particulate Organic Matter) at the up and downstream sites of Kase dam in Saga Prefecture before and after initial impoundment. We present main clear evidence that the nitrogen isotope ratio in sedimentary FPOM at the St. 2 and St. 3 (2.2km and 11.7km downstream from the dam) in spring of afterfollowing impoundment were was significantly higher than those that of before impoundment. After impoundment of the Kase dam, phytoplankton was increased in the reservoir and they were supplied to downstream reaches of the dam. Our results suggest that qualitative changes of sedimentary FPOM downstream of a dam by after initial impoundment was is associated with the state condition of production growth of phytoplankton in the reservoir.

DOI： 10.2208/jscejer.70.II_175

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A passive integrated transponder tag implanted by a new alternative surgical method: effects on the oriental weather loach (Misgurnus anguillicaudatus) and application in a small irrigation system. Reviewed

Kano, Y., Kawaguchi Yoichi, Yamashita, T., Sekijima, T., Shimatani, Y., Taniguchi, Y.

Landscape and Ecological Engineering Vol.9 ( No.2 ) 281 - 287 2013.3

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DOI： 10.1007/s11355-011-0152-5

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The effectiveness of delineating ecoregions in the Kyushu region of Japan for establishing environmental indicators Reviewed

Itukushima Rei, Shimatani Yukihiro, Kawaguchi Yoichi

Landscape and Ecological Engineering ( No.9 ) 27 - 46 2013.2

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DOI： 10.1007/s11355-011-0171-2

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THE DEVELOPMENT OF ENVIRONMENTAL INDICATOR IN THE NORTHWEST MIDSTREAM SEGMENT-BASED ECOREGIONS IN THE KYUSHU REGION

厳島怜, 島谷幸宏, 中島淳, 河口洋一

土木学会論文集 B1(水工学)(Web) 69 ( 4 ) I.1249-I.1254 (J-STAGE) 2013

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DOI： 10.2208/jscejhe.69.I_1249

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A study on seed dispersal by flood flow in an artificially restored floodplain Reviewed

Hayashi Hironori, Shimatani Yukihiro, Shigematsu Kotaro, Nishihiro Jun, Ikematsu Shinya, Kawaguchi Yoichi

Landscape and Ecological Engineering 8 ( 8 ) 129 - 143 2012.7

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DOI： 10.1007/s11355-011-0154-3

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Effects of configuration of instream wood on autumn and winter habitat use by fish in a large remeandering reach Reviewed

Nagayama Shigeya, Nakamura Futoshi, Kawaguchi Yoichi, Nakano Daisuke

Hydrobiologia Vol.680 ( 1 ) 159 - 170 2012.1

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DOI： 10.1007/s10750-011-0913-z

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Determinants of the Misgurnus anguillicaudatus population and its application to conservation planning in Sado Island, Japan Reviewed

田中亘, 鹿野雄一, 山下奉海, 斉藤慶, Kawaguchi Yoichi, 島谷幸宏

Ecology and Civil Engineering Vol.14 ( No.1 ) 1 - 9 2011.7

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This paper aims to propose concrete measures for the conservation of the mud loach (Misgurnus anguillicaudatus) in Sado Island of Japan, associated with the reintroduction of Japanese crested ibis (Nipponia nippon) that has a predilection to feed on the loach. The field survey was conducted at 80 sites on 7 rivers in the island in August 2007 and March 2008, in which the loach density and the micro-scale environmental factors (water depth [WD], degree of aquatic vegetation [AV], degree of riparian forest [RF], current velocity [CV], mud river bed [MB], concreted river bed [CB], and river bed pebble size [PS]) of the habitats were surveyed. Additionally, the macro-scale factors (paddy fields area [PA] and reservoirs area [RA] within a specific buffer circle) were also obtained using GIS software. The analysis using GLM and AIC showed that the AV (positive), MV (positive), CB (negative) and RA (positive), and AV (positive), MV (positive) and PA (positive) effect the loach density in August and March, respectively, indicating that the loach preferred the less artificial habitat surrounded by the paddy fields. The potential maps of the loach density were drawn by adapting the models on the rivers in the island: The loach density was especially high in the Kuninaka Plain that situated at central region of the island in both August and March, indicating the region was priority area for the conservation of the loach. In conclusion, removal of concrete revetment in the habitats and improvement of creek networks between rivers and landscape elements (paddy field and reservoirs) in the Kuninaka Plain would be the effective conservation measurements for the loach.

DOI： 10.3825/ece.14.1

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板櫃川で実施された多自然川づくりの魚類生息環境からみた評価 Reviewed

高比良光治, 島谷幸宏, 久岡夏樹, Kawaguchi Yoichi, 佐藤辰郎, 池松伸也

河川技術論文集 Vol.17 395 - 400 2011.7

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Migration history of Sakhalin taimen Hucho perryi captured in the Sea od Okhotsk, northern Japan, using otolith Sr : Ca ratios Reviewed

Suzuki Kyoko, Yoshitomi Tomoyasu, Kawaguchi Yoichi, Ichimura Masaki, Edo Kaneaki, Otake Tsuguo

Fisheries Science Vol.77 ( No.3 ) 313 - 320 2011.5

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DOI： 10.1007/s12562-011-0335-x

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Evaluation by benthos of the gentle slope revetment which was provided in a tidal river Reviewed

高比良光治, 島谷幸宏, 深津慎司, 金原絵理子, 中島淳, 池松伸也, Kawaguchi Yoichi

Journal of Japan Society of Civil Engineers, Series B1 (Hydraulic Engineering) Vol.55 1399 - 1404 2011.2

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In order to grasp the effect of the gentle slope revetment works to exert on the biodiversity at a tidal river, we surveyed at the tidal area in the Gokase River in Miyazaki Prefecture about the distributions of physical environments (ground levels, grain diameter and ignition loss of bed material) and the benthic communities at both of the soil-covered gentle slope revetment (A), and the vertical dry stone pitching revetment (b). As the results, the physical environments were similar in a transverse direction at the B section but the A section were successively varied. The kinds, and rare species of benthos, especially insects were rich at the A section rather than the B section. The results suggested that the gentle slope revetment works had improved biodiversity.

DOI： 10.2208/jscejhe.67.I_1399

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Simplified quantification method of the population of benthic animals with hole on a mud tidal flat by digital processing aerial photos Reviewed

馬場先正博, 高比良光治, Kawaguchi Yoichi, 島谷幸宏, 小野勇一

Ecology and Civil Engineering Vol.13 ( No.2 ) 101 - 111 2011.1

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DOI： 10.3825/ece.13.101

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置土された土砂の流下過程の数値解析モデルの構築と実河川における適用 Reviewed

武藏由育, 志宇知誠, 山下正浩, 林洋史, 湯城豊勝, Kamada Mahito, 赤松良久, Kawaguchi Yoichi, 中田泰輔

Annual Journal of Hydraulic Engineering. JSCE ( No.55 ) 817 - 822 2011

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Population genetic structure, diversity and stocking effect of the oriental weatherloach (Misgurnus anguillicaudatus) in an isolated island, associated with ibis reintroduction Reviewed

Kano Yuichi, Watanabe Katsutoshi, Nishida Shin, Kakioka Ryo, Wood Chris, Shimatani Yukihiro, Kawaguchi Yoichi

Environmental Biology of Fishes 90 ( 3 ) 211 - 222 2011

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DOI： 10.1007/s10641-010-9733-7

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Predicting the spatial distribution of the invasive piscivorous chub (Opsariichthysuncirostris uncirostris) in the irrigation ditches of Kyushu, Japan: a tool for the risk management of biological invasions Reviewed

Sato Mayumi, Kawaguchi Yoichi, Yamanaka Hiroki, Okunaka Tomoyuki, Nakajima Jun, Mitani Yasuhiro, Shimatani Yukihiro, Mukai Takahiko, Onikura Norio

Biological Invasions Vol.12 ( No.11 ) 3677 - 3686 2010.11

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DOI： 10.1007/s10530-010-9762-3

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Evaluation of irrigation weir improvement for fishes in a stream, Sado Island, Japan Reviewed

山下奉海, Kawaguchi Yoichi, 谷口義則, 鹿野雄一, 石間妙子, 大石麻美, 田中亘, 斉藤慶, 関島恒夫, 島谷幸宏

Ecology and Civil Engineering Vol.13 ( No.1 ) 61 - 76 2010.7

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DOI： 10.3825/ece.13.61

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Distribution of the oriental weatherloach (Misgurnus anguillicaudatus) its implications for conservation in Sado Islan, Japan Reviewed

Kano Yuichi, Kawaguchi Yoichi, Yamashita Tomomi, Shimatani Yukihiro

Ichthyological Research 57 ( 2 ) 180 - 188 2010.4

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DOI： 10.1007/s10228-009-0146-6

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A review of the research on introduced freshwater fishes: new perspectives, the need for research, and management implications. Reviewed

Sato Mayumi, Kawaguchi Yoichi, Nakajima Jun, Mukai Takahiko, Shimatani Yukihiro, Onikura Norio

Landscape and Ecological Engineering Vol.6 ( No.1 ) 99 - 108 2010.1

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DOI： 10.1007/s11355-009-0086-3

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Evaluation of a re-meandering project in the Shibetsu River from an aspect of primary production process. Reviewed

萱場裕一, 野崎健太郎, Kawaguchi Yoichi, 皆川朋子

Ecology and Civil Engineering Vol.12 ( No.1 ) 37 - 47 2009.7

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DOI： 10.3825/ece.12.37

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Longitudinal macroinvertebrate organization over contrasting discontinuities: effects of a dam and a tributary Reviewed

Katano Izumi, Negishi N. Junjiro, Minagawa Tomoko, Doi Hideyuki, Kawaguchi Yoichi, Kayaba Yuichi

Journal of the North American Benthological Society Vol.28 ( No.(2) ) 331 - 351 2009.4

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DOI： 10.1899/08-010.1

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Summer Microhabitat Partitioning by Different Size Classes of Masu Salmon (Oncorhynchus masou) in Habitats Formed by Installed Large Wood in a Large Lowland River, Reviewed

Nagayama Shigeya, Kawaguchi Yoichi, Nakano Daisuke, Nakamura Futoshi

Canadian Journal of Fisheries and Aquatic Sciences Vol.66 ( No.1 ) 42 - 51 2009.2

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DOI： 10.1139/F08-191

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リュウキュウアユ保全に向けた干潟マングローブ域の水域冷却機能の現地観測 Reviewed

大槻順朗, 島谷幸宏, 四宮明彦, 上野あやな, Kawaguchi Yoichi

Annual Journal of Hydraulic Engineering. JSCE Vol.53 1213 - 1218 2009.2

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裂田の溝における護岸改修工事が魚類生息量に与える影響 Reviewed

神尾章記, 渡辺亮一, 山崎惟義, 島谷幸宏, Kawaguchi Yoichi, 渡辺健一

Annual Journal of Hydraulic Engineering. JSCE Vol.53 1207 - 1212 2009.2

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再生氾濫原におけるドブガイ属の生態と侵入システムに関する事例研究 Reviewed

林博徳, 辻本陽琢, 島谷幸宏, Kawaguchi Yoichi

Annual Journal of Hydraulic Engineering. JSCE Vol.53 1141 - 1146 2009.2

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Segment Based Ecoregions Based on Fish Fauna for Biological Indicator Reviewed

Itsukushima, Rei, Shimatani, Yukihiro, Nakajima, Jun, Kawaguchi Yoichi

Annual Journal of Hydraulic Engineering. JSCE 53 1189 - 1194 2009.2

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The biological indicator should be developed in the ecoregion where biota is relatively identical. Furthermore, as stream biota widely varies from headwater to downstream, it is necessary to define segment based ecoregions where biota is longitudinally identical. In this study, we delineated segment based ecoregions for ten rivers belonging to the northwest Kyushu ecoregion based on the degree of similarity of the fish fauna. The northwest Kyushu ecoregion was divided into five segment based ecoregions. As a result, fish fauna was more clearly characterized by the differences in community structure between segment based ecoregions than those between watersheds. Moreover, distinguishing segment based ecoregions, enabled us to compare the integrity of fish fauna between watersheds, which had been previously difficult to examine.

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九州北部における外来魚類の分布状況 Reviewed

中島淳, 鬼倉徳雄, 兼頭淳, 乾隆帝, 栗田喜久, 中谷祐也, 向井貴彦, Kawaguchi Yoichi

Bulletin of the Biogeographical Society of Japan 63 177 - 188 2008.12

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Application of micro-pixe analysis for a migration history study of Hucho Perryi focused on strontium distribution in fish scales Reviewed

Suzuki Kyoko, Yoshitomi Tomoyasu, Kawaguchi Yoichi, Edo Kaneaki

International Journal of PIXE Vol.18 ( No.1&2 ) 39 - 45 2008.11

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DOI： 10.1142/S0129083508001326

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Present Distributions of Exotic Species in Creeks Around Sea of Ariake and Yatsushiro, Northwestern Kyushu, Japan

ONIKURA Norio, NAKAJIMA Jun, EGUCHI Katsuhisa, MIYAKE Takuya, KAWAMURA Kouichi, KURITA Yoshihisa, NISHIDA Takashi, INUI Ryutei, MUKAI Takahiko, KAWAGUCHI Yoichi

Japan journal of water pollution research 31 ( 7 ) 395 - 401 2008.7

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The present distributions of exotic fishes were investigated in creeks flowing into farmlands around northern Ariake and Yatsushiro Bay, Kyushu Island, Japan. Six exotic species introduced from foreign countries and six exotic species introduced from other internal regions in Japan were captured from several creeks in this area. In particular, Carassius cuvieri, Gambusia affinis, Opsariichthys uncirostris uncirostris, and Lepomis macrochirus were found in 83, 29, 29 and 20 sites, respectively. As other exotic species, Oreochromis niloticus, Ischikauia steenackeri, and Squalidus chankaensis tsuchigae were first recorded from this area. The tendencies on sympatric or allopatric appearances were investigated on the basis of the distributions of each of the exotic and native species. A few exotics such as C. cuvieri, G. affinis, and L. macrochirus, and a few natives such as Pseudorasbora parva and Abbottina rivularis indicated their sympatric appearances. In contrast, the allopatric appearances were indicated between these exotics and several natives. The allopatric tendency was estimated to be attributed to differences in habitat that each species preferred. Although Oryzias latipes preferred the dead water regions similarly to these exotics, this species showed its allopatric appearances with G. affinis and L. macrochirus. The distribution of this species was estimated to be limited by the distributions of these exotics.

DOI： 10.2965/jswe.31.395

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九州北西部，有明海・八代海沿岸域のクリークにおける外来魚の分布の現状 Reviewed

鬼倉徳雄, 中島淳, 江口勝久, 三宅琢也, 西村功一, 栗田善久, 西田高志, 乾隆帝, 向井貴彦, Kawaguchi Yoichi

Journal of Japan Society on Water Environment Vol.31 ( No.7 ) 395 - 401 2008.7

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DOI： 10.2965/jswe.31.39

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北海道北部山地河川における細粒土砂の堆積がイトウの産卵環境および発眼卵生残率に及ぼす影響 Reviewed

山田浩之, Kawaguchi Yoichi, 江戸謙顕, 小宮山英重

Ecology and Civil Engineering 11 ( 1 ) 29 - 40 2008.6

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DOI： 10.3825/ece.11.29

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筑後川上流大山川における流量変動が付着藻類の生育に与える影響 Reviewed

矢野真一郎, 黨秀治郎, 吉海広祐, 田辺智子, Kawaguchi Yoichi, 齋藤正徳, 井芹寧

河川技術論文集 Vol.14 95 - 100 2008.6

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River restoration for macroinvertebrate communities in lowland rivers: insights from restorations of the Shibetsu River, north Japan Reviewed

Nakano Daisuke, Nagayama Shigeya, Kawaguchi Yoichi, Nakamura Futoshi

Landscape and Ecological Engineering Vol.4 ( No.1 ) 63 - 68 2008.5

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DOI： 10.1007/s11355-008-0038-3

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Methods for and fish responses to channel remeandering and large wood structure placement in the Shibetsu River Restoration Project in northern Japan Reviewed

Nagayama Shigeya, Kawaguchi Yoichi, Nakano Daisuke, Nakamura Futoshi

Landscape and Ecological Engineering Vol.4 ( No.1 ) 69 - 74 2008.5

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DOI： 10.1007/s11355-008-0039-2

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The relationship the benthic macroinvertebrates and biotic and abiotic environmental characteristics downstream of Yahagi dam, central Japan, and the state change through a tributary inflow Reviewed

Takao Akira, Kawaguchi Yoichi, Minagawa Tomoko, Kayaba Yuichi, Morimoto Yukihiro

River Research and Applications 24 ( 5 ) 580 - 597 2008.2

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DOI： 10.1002/rra.1135

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魚類相の縦断方向変化とセグメント区分に関する研究 Reviewed

厳島怜, 島谷幸宏, Kawaguchi Yoichi

Annual Journal of Hydraulic Engineering. JSCE Vol.52 1147 - 1152 2008.2

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DOI： 10.2208/prohe.52.1147

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Effects on fish habitat evaluation by the vegetation covered ratio in Sakuta ditch Reviewed

渡辺亮一, 山崎惟義, 島谷幸宏, Kawaguchi Yoichi, 兼重俊介, 神尾章記

Annual Journal of Hydraulic Engineering. JSCE Vol.52 1153 - 1158 2008.2

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DOI： 10.2208/prohe.52.1153

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Historical changes and sedimentary environment of Imazu tidal flat Reviewed

島谷幸宏, 横川翔, 宗琢万, Kawaguchi Yoichi, 水垣滋, 馬場崎正博

Annual Journal of Hydraulic Engineering. JSCE Vol.52 1087 - 1092 2008.2

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DOI： 10.2208/prohe.52.1087

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Seasonal change in the gastric evacuation rate of rainbow trout feeding on natural prey Reviewed

Kawaguchi Yoichi, Miyasaka Hitoshi, Kato G, Motomi, Taniguchi Yoshinori, Nakano Shigeru

Journal of Fish Biology Vol.71 ( No.6 ) 1873 - 1878 2007.12

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DOI： 10.1111/j.1095-8649.2007.01647.x

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裂田水路における河床材料の変化が絶滅危惧種スナヤツメに与える影響に関する研究 Reviewed

渡辺亮一, 山崎惟義, 島谷幸宏, Kawaguchi Yoichi

環境工学研究論文集 Vol.44 67 - 73 2007.11

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Effects of planktonic algae from dam reservoir on feeding condition for Ayu in the upper Chikugo River Reviewed

齋藤正徳, 矢野真一郎, 黨秀治郎, Kawaguchi Yoichi, 井芹寧, 宮坂仁

河川技術論文集 Vol.13 95 - 100 2007.6

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The stucy of river design consider with fish habitat in the Itabitsu River Reviewed

朴埼燦, Kawaguchi Yoichi, 久岡夏樹, 島谷幸宏, 澤田尚人

河川技術論文集 Vol.13 95 - 100 2007.6

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筑後川上流域におけるダム放流量増加が付着藻類に与える影響

齋藤正徳, 河口洋一, 矢野真一郎, 井芹寧, 黨秀治郎, 島谷幸宏, 緒方健, 山崎正敏, 清野聡子

水工学論文集(CD-ROM) 51 ROMBUNNO.204 2007.2

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DOI： 10.2208/prohe.51.1219

J-GLOBAL

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歴史的観点から見た干潟環境の変化と人の係わりに関する研究 Reviewed

馬場崎正博, 宗琢万, Kawaguchi Yoichi, 朴埼燦, 島谷幸宏

Environmental Systems research 34 97 - 104 2006.10

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筑後川上流(大山川)における維持流量変化が河川環境に与える影響に関する現地観測 Reviewed

矢野真一郎, 齋藤正徳, 井芹寧, Kawaguchi Yoichi, 島谷幸宏, 緒方健, 山崎正敏, 清野聡子

Advances in River Engineering 12 443 - 448 2006.6

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北川流域における堆積土砂成分の横断分布 Reviewed

島谷幸宏, 埜村和孝, Kawaguchi Yoichi

Advances in River Engineering 12 305 - 310 2006.6

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Life History Strategies and Habitat Dynamics Associated with Geomorphic Disturbance : Toward Restoration of Impacted River Ecosystems(<Featured Articles>Preface of 25th Anniversary Special Issue of JGU on Frontier of Geomorphology) Reviewed

中村太士, 中野大助, Kawaguchi Yoichi, 稲原知美

Chikei 27 ( 1 ) 41 - 46 2006.6

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River ecosystem is spatiotemporally dynamic under frequent and intensive geomorphic disturbances, characterized by its fluctuating habitat availability. The species inhabiting there adapt themselves to the shifting habitat by developing various life-history strategies. In regulated rivers, however, suppressed disturbance and habitat dynamics threaten the disturbance-dependent communities. The recognition of important geomorphic perspectives is still in its infancy in conservation of river ecosystems in Japan. Riparian tree species have developed life-history strategies to increase the likelihood of arriving regeneration sites, where disturbance regimes are closely linked to the spatial and temporal availability of regeneration sites. River damming and channel modification severely diminish the critical function of geomorphic disturbance sustaining habitat diversity and abundance. Channel migration ceases in flow-regulated rivers, which may temporarily promote expansion of pioneer forest in the active channels. However, new geomorphic surfaces suitable for establishment of seedlings are no longer created because of altered peak flows and sediment supply, thereby threatening the recruitment opportunity and ultimate survival of their populations. Suppression of geomorphic disturbance also leads to the degradation of in-stream fauna. Channel straightening particularly simplifies geomorphic features of a river reach and diminishes longitudinal and lateral habitat diversity in its active channel. Flood control reduces inundation habitat and disrupts hydrologic connectivity between floodplain habitats (e.g., backwater and oxbow lakes), impacting fish and benthic invertebrates that require those habitats in their various life stages. A channel re-meandering experiment in the Shibetsu River, Hokkaido, demonstrates that the recovery of geomorphic dynamics can play significant roles in restoration of river ecosystems. Meandering reaches develop shallow edge habitat with low hydraulic stress along the inside of a convex, providing stable substrate for macroinvertebrate communities. Fallen trees provided by lateral erosion also promote macroinvertebrate colonization and become in-stream covers for fish communities. Geoecology in Japan as well as Europe and U.S. has long focused on vegetation pattern in alpine regions and has unexplored terrestrial and aquatic ecosystems in the vicinity of human activities. Knowledge in habitat dynamics and geomorphic processes is vital to ecosystem conservation and restoration. We believe that participation of geomorphologists is essential in future development of conservation and restoration strategies.

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ダム維持放流変化が河床付着生物膜形成に与える影響に関する現地調査 Reviewed

井芹寧, 矢野真一郎, 石川泰助, 齋藤正徳, Kawaguchi Yoichi, 島谷幸宏

Advances in River Engineering 12 277 - 282 2006.6

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直線化された川の再蛇行化-分野間の協働について- Reviewed

Kawaguchi Yoichi, 中村太士

Japanese Journal of Ecology 55 ( 55 ) 497 - 505 2006.3

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DOI： 10.18960/seitai.55.3_497

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Effects of different bank types on aquatic organisms in an experimental stream: contrasting vegetation with concrete revetment Reviewed

Kawaguchi Yoichi, Saiki Msakuni, Mizuno Tohru, Kayaba Yoichi

Internationale Vereinigung für Theoretische und Angewandte Limnologie 29 1427 - 1432 2006.3

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DOI： 10.1080/03680770.2005.11902917

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Catchability of six fish species by electrofishing in an experimental stream

SAGAWA Shiro, KAYABA Yuichi, MINAGAWA Tomoko, KAWAGUCHI Yoichi

ECE 8 ( 2 ) 193 - 199 2006.1

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We examined electrofishing catchability of six most abundant fish species in experimental stream A in the Aqua Restoration Research Center in Gifu, Japan. The electrofishing catchability can be defined as the total catch obtained by electrofishing divided by the sum of catches obtained by electrofishing and by chasing into D-shaped nets. The six species were classified into high catchability species (more than 80% of the catch) (Plecoglossus altivelis altivelis, Misgurnus anguillicaudatus, and Cobitis sp.) and low catchability species (less than 80% of the catch) (Zacco platypus, Gnathopogon elongatus elongatus, and Rhinogobius sp.). Two age groups were confirmed in each of the low catchability species by estimation of the fish size (total length mm). Each peak of the first and the second age groups were positioned less and more than 40 mm, respectively. The catchability of the first age group of Z. platypus as a swimming fish was significantly lower than the second age group of the species. The catchability range of Rhinogobius sp., a benthic fish, was lower (24%-67%) than that of Z. platypus and G. elongatus elongatus values. Furthermore, the catchability of the second age group of Rhinogobius sp. was lower than that of Z. platypus. These results suggest that electrofishing alone is not a suitable capture method because its capture rates for small swimming fish < 40 mm and for all sizes of benthic fishes are low. Therefore, electrofishing should be used along with the D-shape nets and the small swimming fishes and benthic fishes should be chased into the nets. Additionally, we recommend that further studies are required to determine not only the catchability for each of these species but also to study damages by electrofishing to fish under various voltage, pulse, and environmental conditions.

DOI： 10.3825/ece.8.193

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河川付着藻類起源のクロロフィルaに関する簡易測定法の開発

井芹寧, 斉藤正徳, 田辺智子, 河口洋一, 矢野真一郎

日本陸水学会講演要旨集 71 162 - 162 2006

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DOI： 10.14903/jslim.71.0.162.0

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筑後川上流大山川における流量変動が水生昆虫群集に与える影響

緒方健, 山崎正敏, 中村朋文, 矢野真一郎, 齋藤正徳, 井芹寧, 島谷幸宏, 河口洋一, 清野聡子

日本陸水学会講演要旨集 71 23 - 23 2006

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DOI： 10.14903/jslim.71.0.23.0

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HISTORICAL CHANGE OF ENVIRONMENT AND HUMAN IMPACT RELATIONSHIP IN THE IMAZU TIDAL FLAT, FUKUOKA

BABASAKI Masahiro, SOU Takuma, KAWAGUCHI Yoichi, PARK Kichan, SHIMATANI Yukihiro

Doboku Gakkai Ronbunshuu G 34 97 - 103 2006

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In the recent years, restoration of tidal flat has been carried out in Japan. In those cases, we need an environmental goal of restoration project. However, it is difficult to remake past condition. The Imazu Tidal Flat in the sphere of the Fukuoka City has prospered from ancient times, and a lot of historical materials including the kitchen midden has been accumulated. In this research, we investigated the historical change of physical environment and human impact relationships in the Imazu tidal flat, and it was clarified that the tidal flat and person's relations were close from ancient times to 1975's. It was thought the cause of the deterioration of the tidal flat was that a sandy tidal flat had become mud, but the excavation shellfishes' situations gave proof that the muddy tidal flat had existed from from ancient times. Our results provided an important evidence for restoration of tidal flat of various places.

DOI： 10.2208/proer.34.97

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Thermal changes in the gastric evacuation rate of the freshwater sculpin Cottus nozawae Snyder Reviewed

Hitoshi Miyasaka, Kawaguchi Yoichi, Motomi Genkai-Kato, Kenji Yoshino, Hidejiro Ohnishi, Naotoshi Kuhara, Yukiyoshi Shibata, Tsuyoshi Tamate, Yoshinori Taniguchi, Hirokazu Urabe, Shigeru Nakano

Limnology 6 169 - 172 2005.12

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Morphology, stomach contents and growth of the endangered salmonid, Sakhalin taimen Hucho perryi, captured in the Sea of Okhotsk, northern Japan: evidence of an anadromous form Reviewed

Kaneaki Edo, Kawaguchi Yoichi, Masanori Nunokawa, Hiloshi Kawamula, Seigo Higashi

Environmental Biology of Fishes 74 1 - 7 2005.9

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DOI： 10.1007/s10641-004-6115-z

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Estimation of stream ecosystems by 13C and 15N natural abundances Reviewed

高津文人, Kawaguchi Yoichi, 布川雅典, 中村太志

Ecology and Civil Engineering 7 ( 2 ) 201 - 213 2005.6

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DOI： 10.3825/ece.7.201

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標津川下流域で行った試験的な川の再蛇行化に伴う魚類と生息環境の変化 Reviewed

Kawaguchi Yoichi, 中村太志, 萱場祐一

Ecology and Civil Engineering Vol.7 ( No.2 ) 187 - 199 2005.6

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Effects of a re-meandering project on the physical habitats and fish in the Shibetsu River. Ecol. Civil Eng. 7(2), 187-199, 2005

Yôichi Kawaguchi, Futoshi Nakamura, Yuichi Kayaba

Ecology and Civil Engineering 7 ( 2 ) 187 - 199 2005

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DOI： 10.3825/ece.7.187

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Shibetsu River Restoration Project

Yoichi Kawaguchi, Futoshi Nakamura

Ecology and Civil Engineering 7 ( 2 ) 139 - 141 2005

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DOI： 10.3825/ece.7.139

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阿木川ダム下流における支川合流が、河川底生動物群集に与える影響

片野泉, 河口洋一, 田代喬, 皆川朋子, 萱場祐一

日本陸水学会講演要旨集 70 ( 0 ) 32 - 32 2005

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DOI： 10.14903/jslim.70.0.32.0

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Estimation of stream ecosystems by 13C and 15N natural abundances. Ecol. Civil Eng. 7(2), 201-213, 2005

Ayato Kohzu, Yôichi Kawaguchi, Masanori Nunokawa, Futoshi Nakamura

Ecology and Civil Engineering 7 ( 2 ) 201 - 213 2005

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DOI： 10.3825/ece.7.201

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Ecological researches for river restoration projects using experimental stream in Japan

Yuichi Kayaba, Shiro Sagawa, Yoichi Kawaguchi, Masakuni Saiki, Tomoko Minagawa, Takashi Tashiro

31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges 6275 - 6284 2005

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TERRESTRIAL INVERTEBRATE INPUTS DETERMINE THE LOCAL ABUNDANCE OF STREAM FISHES IN A FORESTED STREAM Reviewed

Kawaguchi Yoichi, YOSHINORI TANIGUCHI, SHIGERU NAKANO

Ecology 84 ( 3 ) 701 - 708 2003.9

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DOI： 10.1890/0012-9658(2003)084[0701:TIIDTL]2.0.CO;2

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A New Approach of Stream Geomorphology Measurement for Habitat Assessment Reviewed

萱場祐一, 千葉武夫, 力山基, Kawaguchi Yoichi, 尾澤卓思

Advances in River Engineering 8 191 - 196 2002

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Stream Fish Habitat Science and Management in Japan : A Review Reviewed

YOSHINORI TANIGUCHI, MIKIO INOUE, Kawaguchi Yoichi

Aquatic Ecosystem Health & Management 4 357 - 365 2001.6

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DOI： 10.1080/146349801317276035

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Contribution of terrestrial invertebrates to the annual resource budget for salmonids in forest and grassland reaches of a headwater stream Reviewed

Kawaguchi Yoichi, Nakano Shigeru

Freshwater Biology 46 303 - 316 2001.1

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DOI： 10.1046/j.1365-2427.2001.00667.x

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Predicting the potential habitat of white-spotted charr in central Japan

KAWAGUCHI Yoichi, MITSUHASHI Hiromune, TANAKA Tetsuo, MITSUHASHI Aki

Landscape Ecology and Management 6 ( 3 ) 119 - 122 2001

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DOI： 10.5738/jale.6.119

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第6章環境影響評価調査法

Kawaguchi Yoichi, 風間健太郎

2024.5

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第1章生態系と生物多様性の特徴(分担執筆)

西廣淳, 瀧健太郎, 原田守啓, 宮崎佑介, Kawaguchi Yoichi, 宮下直

朝倉書店 2021.9

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第9章国内外来魚の分布予測モデル

鬼倉徳雄, Kawaguchi Yoichi

2013.7

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5.3 河川生態系の復元

Kawaguchi Yoichi, 川那部浩哉監, 水野信彦監, 中村太士編

株式会社講談社サイエンティフィク 2013.1

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7.2 蛇行河川の魚はどこに棲んでいるのか?7.3.1,7.3.2 蛇行河川における倒木の役割，8.3 魚類相の変化

Kawaguchi Yoichi, 中村太士編

GIHODO SHUPPAN Co., Ltd. 2011.3

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幌内川・三面川

Kawaguchi Yoichi, 小倉紀雄編, 谷田一三編, 島谷幸宏編

朝倉書店 2010.1

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川の百科事典編集委員長・高橋裕

Kawaguchi Yoichi

MARUZEN Co.,Ltd. 2009.1

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河川生態系・氾濫原・エコトーン・清水バイパス・川の構造と機能の解説

Kawaguchi Yoichi, 高橋裕編集委員長

丸善出版 2009.1

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Ecological response to anthropogenic alterations of gravel-bed rivers in Japan, from river floodplain segments to microhabitat scale: A review

Nakamura Futoshi, Kawaguchi Yoichi, Nakano Daisuke, Yamada Hiroyuki

Elsevier Science 2008.9

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Ecological response to anthropogenic alterations of gravel-bed rivers in Japan, from river floodplain segments to microhabitat scale: A review

Nakamura Futoshi, Kawaguchi Yoichi, Nakano Daisuke, Yamada Hiroyuki

Elsevier 2008.2

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第10章:森林と草地を流れる小河川におけるサケ科魚類の餌資源における陸生無脊椎動物の寄与

Kawaguchi Yoichi

北海道大学出版 2002.12

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第10章:森林と草地を流れる小河川におけるサケ科魚類の餌資源における陸生無脊椎動物の寄与

Kawaguchi Yoichi

北海道大学出版 2002.9

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那賀川の自然再生に向けた川づくり Invited

Kawaguchi Yoichi

月刊誌「河川」(日本河川協会) 11 ( 928 ) 48 - 50 2023.11

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グリーンインフラとまちづくり

Yamanaka Hideo, WATANABE Kojiro, Kawaguchi Yoichi, Okushima Masashi

Journal of Human and Environmental Symbiosis 39 ( 2 ) 139 - 148 2023.9

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DOI： 10.32313/jahes.39.2_139

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Habitat utilization of wild mammals on western Tokushima Prefecture, Japan based on infrared-triggered camera

( 11 ) 1 - 7 2018

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Phylogeography of Opsariichthys platypus in Japan based on mitochondrial DNA sequences

Ichthyological research : an official journal of the Ichthyological Society of Japan 63 ( 4 ) 506 - 518 2016.11

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Thermal Habitat Degradation of Dolly Varden in the Shiretoko Peninsula, Hokkaido, Japan

( 20 ) 5 - 8 2015

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Migration history of Sakhalin taimen Hucho perryi captured in the Sea of Okhotsk, northern Japan, using otolith Sr:Ca ratios

SUZUKI Kyoko, YOSHITOMI Tomoyasu, KAWAGUCHI Yoichi, ICHIMURA Masaki, EDO Kaneaki, OTAKE Tsuguo

77 ( 3 ) 313 - 320 2011.5

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SEGMENT-BASED ECOREGIONS BASED ON FISH FAUNA AS A BIOLOGICAL INDICATOR

ITSUKUSHIMA Rei, SHIMATANI Yukihiro, NAKAJIMA Jun, KAWAGUCHI Yoichi

28 ( 1 ) 55 - 67 2010.5

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Restoration project of water environment for recovery of wild Japanese crested ibis on the Sado Island Invited

Kawaguchi Yoichi, 島谷幸宏, 山下奉海, 関島恒夫

Civil engineering journal Vol.51 ( No.8 ) 34 - 37 2009.8

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樹木を用いた魚類生息場改善--標津川の事例から

永山滋也, 河口洋一, 中野大助

寒地土木研究所月報 ( 673 ) 31 - 35 2009.6

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水系ネットワークの再生による氾濫現環境の修復 Invited

Kawaguchi Yoichi, 山下奉海, 石間妙子, 林博徳, 高野瀬洋一郎, 関島恒夫

水利科学 53 ( 1 ) 34 - 52 2009.4

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DOI： 10.20820/suirikagaku.53.1_34

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Restoration scenario and capacity building for the resettlement of the crested ibis

Environmental research quarterly ( 155 ) 130 - 138 2009

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ELR2008福岡三学会合同大会報告(応用生態工学会日本景観生態学会日本緑化工学会) Invited

Kawaguchi Yoichi

河川 Vol.748 ( 11 ) 88 - 93 2008.11

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Effectiveness of large woody debris to create salmonid habitat Invited

永山滋也, Kawaguchi Yoichi, 中野大助, 中村太士

Water science Vol.51 ( No.6 ) 60 - 77 2008.2

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19 Ecological responses to anthropogenic alterations of gravel-bed rivers in Japan, from floodplain river segments to the microhabitat scale: a review

Futoshi Nakamura, Yôichi Kawaguchi, Daisuke Nakano, Hiroyuki Yamada

Developments in Earth Surface Processes 11 501 - 523 2007

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DOI： 10.1016/S0928-2025(07)11141-X

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Life history strategies and habitat dynamics associated with geomorphic disturbance: Toward restoration of impacted river ecosystems

Futoshi Nakamura, Daisuke Nakano, Yoichi Kawaguchi, Satomi Inahara

Chikei/Transactions, Japanese Geomorphological Union 27 ( 1 ) 41 - 64 2006.1

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Limnological characteristics of an oxbow lake in a lower reach of the Shibetsu River in Hokkaido Island, Japan

NOZAKI Kentaro, KIHIRA Masaki, YAMADA Hiroyuki, KISHI Daisuke, NUNOKAWA Masanori, KAWAGUCHI Yoichi

Ecology and civil engineering 7 ( 2 ) 165 - 172 2005.1

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実験河川における魚類の分布と生息環境の関係 (特集自然共生研究センターにおける研究)

河口洋一, 萱場祐一, 水野徹

土木技術資料 44 ( 10 ) 26 - 31 2002.10

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流量変動が河川環境に果たす役割と実験的検討--流量増加に伴う河床付着物の掃流と魚類の遡上について (特集自然共生研究センターにおける研究)

皆川朋子, 河口洋一, 萱場祐一

土木技術資料 44 ( 10 ) 32 - 37 2002.10

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Selective foraging on terrestrial invertebrates by rainbow trout in a forested headwater stream in northern Japan

NAKANO Shigeru, KAWAGUCHI Yoichi, TANIGUCHI Yoshinori, MIYASAKA Hitoshi, SHIBATA Yukiyoshi, URABE Hirokazu, KUHARA Naotoshi

Ecological Research 14 ( 4 ) 351 - 360 1999.12

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徳島県鳴門市の蓮田におけるアメリカザリガニの生息環境解析

Hiramatsu Hayato, Kawaguchi Yoichi, 佐藤雄大, Sugimoto Kensuke

第50回環境システム研究論文発表会 2023.10

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Does sediment replenishment downstream of dams affect activities of bats? International conference

Aie Hiroki, Kawaguchi Yoichi, Sato Takahiro, Akasaka Takumi

40th IAHR World Congress 2023.8

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Venue：Vienna (Austria)

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Importance of Dam Reservoirs for Bats as Foraging Habitat International conference

Sato Takahiro, Kawaguchi Yoichi, Nakanishi Shin, Akasaka Takumi

Proceedings of the 40th IAHR World Congress. Rivers Connecting Mountains and Coasts 2023.8 International Association for Hydro-Environment Engineering and Research

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Venue：Vienna, Austria

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Importance of Dam Reservoirs for Bats as Foraging Habitat International conference

Sato Takahiro, Kawaguchi Yoichi, Nakanishi Shin, Akasaka Takumi

40th IAHR World Congress 2023.8

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Venue：Vienna (Austria)

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Does sediment replenishment downstream of dams affect activities of bats? International conference

Aie Hiroki, Kawaguchi Yoichi, Sato Takahiro, Akasaka Takumi

Proceedings of the 40th IAHR World Congress. Rivers Connecting Mountains and Coasts 2023.8 International Association for Hydro-Environment Engineering and Research

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流域再生の技術と事例

Kawaguchi Yoichi

自然文化活用地域創生シンポジウム 2023.1

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徳島県鳴門市に造成されたビオトープとレンコン田におけるコウノトリの餌生物量調査

Sugimoto Kensuke, Kawaguchi Yoichi, 佐藤雄大, 阿部悠馬, Nakajima Sohta

第50回環境システム研究論文発表会 2022.10

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那賀川上流域の異なる土砂供給区間におけるコウモリの活動量比較

Aie Hiroki, 佐藤雄大, 赤坂卓美, Kawaguchi Yoichi

ELR2022つくば 2022.9

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北海道大黒島で繁殖するウトウを対象とした洋上風力発電センシティビティマップの開発

Kawaguchi Yoichi, 佐藤雄大, 藪原佑樹, 大門純平, 綿貫豊

ELR2022つくば 2022.9

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越冬期におけるオジロワシの生息場解析

Muro Takumi, Kawaguchi Yoichi, 佐藤雄大, 中川元

土木学会四国支部技術研究発表会 2022.5

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選択型実験を用いた知床でのエコツーリズムにおける潜在需要の評価

Ishizue Yuki, Kawaguchi Yoichi, 寺山元, WATANABE Kojiro, 佐藤雄大

土木学会四国支部技術研究発表会 2022.5

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長安口ダム下流の置土がコウモリに及ぼす影響ー異なる河床環境での比較

Aie Hiroki, Kawaguchi Yoichi, 佐藤雄大

土木学会四国支部技術研究発表会 2022.5

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鳴門市の耕作放棄地に造成されたビオトープにおけるコウノトリの餌生物量調査

Sugimoto Kensuke, 阿部佑馬, Nakajima Sohta, 佐藤雄大, Kawaguchi Yoichi

土木学会四国支部技術研究発表会 2022.5

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北海道大黒島で繁殖するウトウの利用海域選択

佐藤雄大, 藪原佑樹, 山内彬弘, 大門純平, 綿貫豊, Kawaguchi Yoichi

第68回日本生態学会(岡山) 2022.3

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選択型実験を用いた知床でのエコツーリズムにおける潜在需要の評価

Ishizue Yuki, Kawaguchi Yoichi, 寺山元, WATANABE Kojiro, 佐藤雄大

応用生態工学会第24回北海道大会 2021.9

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長安口ダム下流への置土が砂州の陸生節足動物に及ぼす影響

Nakanishi Jun, Kawaguchi Yoichi, 藪原佑樹

応用生態工学会第23回広島大会 2019.9

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徳島市国府町の以西用水における魚類の生息場改善の効果検証

Kuwana Kokoro, Kawaguchi Yoichi, 岩瀬晴夫, 勝間健二

応用生態工学会第23回広島大会 2019.9

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北海道北部地域におけるオジロワシの潜在生息適地推定

藪原佑樹, 赤坂卓美, 山田芳樹, Kawaguchi Yoichi

応用生態工学会第23回広島大会 2019.9

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以西用水における魚類の生息場改善の効果検証

Kuwana Kokoro, Kawaguchi Yoichi

中国四国地区生物系三学会合同大会(広島) 2019.5

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長安口ダム下流への置土が砂州の陸生節足動物に与える影響

中西淳, 藪原佑樹, Kawaguchi Yoichi

中国四国地区生物系三学会合同大会(広島) 2019.5

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風力発電増加シナリオ下におけるオジロワシ個体群の将来予想

藪原佑樹, 赤坂卓美, Kawaguchi Yoichi

第66回日本生態学会(神戸) 2019.3

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以西用水における魚類の生息場改善の効果

Kuwana Kokoro, Kawaguchi Yoichi

第46回四国魚類研究会(徳島) 2019.3

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北海道北部に生息するイトウの成長特性と回遊パターン

鈴木享子, 川原満, 藤本信治, Kawaguchi Yoichi, 清水泰, 永井英俊

2018年水産海洋学会 2018.11

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徳島県鳴門市のハス田におけるカモ類の夜間飛来数と景観構造の関係

Kadoya Ryo, 藪原佑樹, Kawaguchi Yoichi

2018年応用生態工学会第22回東京大会 2018.9

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環境保全型農業における販売実績とブランド戦略

大坪史人, Kawaguchi Yoichi, 田代優秋, 豊田光世, 野本和宏

2018年日本農業市場学会 2018.7

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四国におけるコウノトリの生息適地推定

Kadoya Ryo, 藪原佑樹, Kawaguchi Yoichi, 大迫義人, 江崎保男

日本緑化工学会・日本景観生態学会・応用生態工学会3 学会合同大会 2017.9

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徳島県鳴門市南部の水田地帯におけるコウノトリの餌生物量評価

Adachi Naoyuki, 溜島卓也, Yamashiro Asuka, Kawaguchi Yoichi, 佐川志郎

日本緑化工学会・日本景観生態学会・応用生態工学会3 学会合同大会 2017.9

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コウノトリの国内第二の繁殖地としてみる鳴門市の餌環境評価

Adachi Naoyuki, 溜島卓也, Yamashiro Asuka, Kawaguchi Yoichi, 佐川志郎

中国四国地区生物系三学会合同大会 2017.5

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熱ショックタンパク質(Hsp)を指標としてオショロコマ個体群に対する河川水温上昇の影響を評価する

倉橋彩百合, 鎌田泰斗, 関島恒夫, 竹川有哉, 谷口義則, Kawaguchi Yoichi

日本生態学会第63回全国大会 2016.3

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Venue：仙台市

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砂防・治山ダムによる物理環境の改変が魚類・底生動物・藻類群集に及ぼす影響 -人為的改変はトロフィックカスケードを引き起こすのか?

竹川有哉, Kawaguchi Yoichi, 布川雅典, 岸大弼, 谷口義則

日本生態学会第63回全国大会 2016.3

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サケ科魚類オショロコマに対するダム設置による水温上昇の影響を熱ショックタンパク質(Hsp) で評価する

倉橋彩百合, 鎌田泰斗, 関島恒夫, 竹川有哉, 谷口義則, Kawaguchi Yoichi

応用生態工学会第19回郡山大会 2015.9

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ダムとオショロコマの生息環境の関係性

斎藤壮央, 竹川有哉, Kawaguchi Yoichi, 谷口義則, 山城明日香

第19回郡山大会 2015.9 応用生態工学会

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「環境保全型農業と希少生物」 Invited

Kawaguchi Yoichi

平成 27 年度れんこん研究成果等報告会 2015.8 徳島県立農林水産総合技術支援センター主催

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Venue：徳島県石井町

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トキとコウノトリとグリーンインフラ:持続的な農業の可能性 Invited

Kawaguchi Yoichi

耕地事業研究会生態系保全工法研究部会第17回学習会 2015.8 徳島県立農林水産総合技術支援センター主催

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Venue：徳島県徳島市

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「 `` トキ '' と `` コウノトリ '' と `` グリーンインフラ '' :持続的な農業の可能性」 Invited

Kawaguchi Yoichi

耕地事業研究会生態系保全工法研究部会第17回学習会 2015.8 徳島県農林水産部主催

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Venue：Tokushima

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Relation density of Dolly Varden and environmental factors in the Shiretoko Peninsula: Effects of Global Warming and Dams. International conference

Takegawa Y., Kawaguchi Yoichi, Taniguchi Y., Urabe H., Shimoda K.

The Vth International Wildlife Management Congress 2015.7

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Venue：Sapporo

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The relationship between the migration of the oriental weatherloach, Misgurnus anguillicaudatus, and environmental factors in the paddy fields on of Sado Island, Japan. International conference

Aoyama N., Kawaguchi Yoichi, Akasaka T.

The Vth International Wildlife Management Congress 2015.7

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Venue：Sapporo

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「ニホンウナギと河川環境について」

Kawaguchi Yoichi

ニホンウナギと河川環境に関する討論会 2015.7 九州水生生物調査会主催

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Venue：Fukuoka

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「今，消費者が生産者に求めている価値~認証米・販売店へのアンケートとヒアリングから見えるもの~」 Invited

Kawaguchi Yoichi

朱鷺と暮らす郷づくり推進フォーラム 2015.6 佐渡市役所

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Venue：佐渡市

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Assessing the conservation plan under global warming for Dolly Varden (Salvelinus malma) by using species distribution models in Hokkaido, Japan. International conference

Takegawa Y., Kawaguchi Yoichi, Taniguchi Y.

8TH INTERNATIONAL CHARR SYMPOSIUM 2015.6

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Venue：TROMSØ, NORWAY

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Thermal responses of Dolly Varden to Temperature Warming: Implications for Global Climate Change. International conference

Taniguchi Y., Kawaguchi Yoichi, Takegawa Y., Urabe H., Shimoda K.

8TH INTERNATIONAL CHARR SYMPOSIUM 2015.6

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Venue：TROMSØ, NORWAY

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The effect of low-head dams on jaw morphology of Dolly Varden (Salvelinus malma) in mountain streams of the Shiretoko Peninsula, Hokkaido, Japan. International conference

Kawaguchi Yoichi, Saito M., Takegawa Y., Taniguchi Y.

8TH INTERNATIONAL CHARR SYMPOSIUM 2015.6

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Venue：TROMSØ, NORWAY

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吉野川河口汽水域における護岸構造と潮間帯生物の分布に関する研究と研究成果を活かした護岸構造の提案

神野威, Kawaguchi Yoichi, 竹川有哉

河川技術に関するシンポジウム 2015.6

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Venue：Tokyo

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希少猛禽類オジロワシの生息域推定と風力発電施設の適地推定による関係性解析

Hayashi Yusuke, Kawaguchi Yoichi, Takegawa Yuya, 赤坂卓美, 中川元

2015年度景観生態学会北九州大会 2015.6

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Venue：Kitakyushu

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ダムとオショロコマの頭部形態の関係性

Saitoh Masahiro, Takegawa Yuya, Kawaguchi Yoichi

日本生態学会第61回大会 2015.3

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Venue：Kagoshima

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吉野川におけるアユの産卵場変化と河道の経年変化

Terai Kazuhiro, Kawaguchi Yoichi, Muto Yasunori, 野村一至

第42回四国魚類研究会(徳島) 2015.2

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Venue：Tokushima

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「魚からみる川づくりの評価とポイントそして自然の利用」 Invited

Kawaguchi Yoichi

2014第22回環境シンボジウム「自然環境の保全と創造に向けて」 2015.1 徳島県県土整備部・農林水産部,徳島県職員労働組合(土木・耕地・林務評議会)主催

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Venue：Tokushima

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「21世紀の環境問題と自然を再生する取り組み」 Invited

Kawaguchi Yoichi

環境問題講演会 2014.12 徳島県立富岡東中・高等学校

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Venue：Anan

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「森のサカナ・イワナと地球温暖化」 Invited

Kawaguchi Yoichi

田中哲夫最終講演会 2014.12 兵庫県立人と自然の博物館主催

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Venue：Hyogo Prefecture

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「魚類の分布と生息場・物理環境の関係」

Kawaguchi Yoichi

土木学会基礎水理シンポジウム 2014.12 土木学会基礎水理部会

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Venue：Tokyo

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嘉瀬川ダム上下流における試験湛水開始前後での堆積・流下有機物の量的・質的変化

坂東伸哉, Kawaguchi Yoichi, 大串浩一郎, 野口剛志, 濱岡秀樹, 佐藤雄大, 関島恒夫, 手塚公裕

第42回環境システム研究論文発表会 2014.10

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Venue：つくば

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特別講演「鮎の味の秘密」 Invited

Kawaguchi Yoichi

第17回清流めぐり利き鮎会 2014.9 高知県友釣り連盟主催

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Venue：Kochi

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国土強靱化と自然環境保全幹事会主催自由集会

萱場祐一, Kawaguchi Yoichi, 西廣淳

応用生態工学会第18回大会 2014.9

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「自然の恵みを考える!」 Invited

Kawaguchi Yoichi

生物多様性を軸とした持続可能な地域づくり講演会 2014.7 阿南市役所主催

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Venue：Anan

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Impacts of climatic warming on Dolly Varden (Salvelinus malma) accelerated by low-head dams in Japan. International conference

Kawaguchi Yoichi, Taniguchi Y., Takegawa Yuya, Kurahashi S., Kamada Y, Sekijima T., Urabe H, Shimoda K

2014 Ecological and Evolutionary Ethology of Fishes 2014.6

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Venue：Corvalis USA

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河川改修がアユの生息環境に与える影響

伊槻健, Kawaguchi Yoichi

平成26年度土木学会四国支部技術研究発表会 2014.5

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Venue：Tokushima

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吉野川におけるアユの産卵場減少と河川環境の変遷

Terai Kazuhiro, Kawaguchi Yoichi

平成26年度土木学会四国支部技術研究発表会 2014.5

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四国を対象とした河川性魚類の生息適地予測と保全計画への活用

香川祥大, Takegawa Yuya, 乾隆帝, Kawaguchi Yoichi, Satoh Yoichi, 河口拓紀, 井上幹生, 赤坂卓美

第41回四国魚類研究会 2014.3

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Venue：Kochi

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河川・湖沼・湿地の自然再生2「防災事業と生物多様性保全・自然再生」

西廣淳, Kawaguchi Yoichi, 萱場祐一

日本生態学会第61回大会 2014.3

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「森のサカナ・オショロコマと地球温暖化」

Kawaguchi Yoichi

第130回徳島生物学会 2013.12

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Venue：Tokushima

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「アザメの瀬」に学ぶ住民参加の川づくり

Kawaguchi Yoichi

生物多様性とくしま会議・市民セミナー1 水辺の生物多様性を考える~防災と生物多様性保全の視点から~ 2013.12

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Venue：Tokushima

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多自然川づくり・生き物と人の視点

Kawaguchi Yoichi

宮崎県自然豊かな水辺の工法研究会 2013.10

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Venue：日向市

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「河川の生物多様性~森のサカナ・オショロコマと地球温暖化~」

Kawaguchi Yoichi

「北のサカナの声を聴こう」,KITA-NET北海道環境活動交流フォーラム2013,認定NPO法人北海道市民環境ネットワーク 2013.10

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Language：Japanese

Venue：Sapporo

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ダムのある・なしにおけるアユの食味と藻類群集・水質との関係に関する研究

Uemura Yoshihiko, Kawaguchi Yoichi, 野崎健太郎

応用生態工学会第17回大会 2013.9

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Venue：Osaka

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幹事会主催自由集会:放射性物質動態と流域生態系

五味高志, Kawaguchi Yoichi

応用生態工学会第17回大会 2013.9

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Venue：Osaka

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幹事会主催自由集会:震災と環境対策

萱場祐一, Kawaguchi Yoichi

応用生態工学会第17回大会 2013.9

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Venue：Osaka

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佐渡島の圃場整備水田排水路でのドジョウの生息環境を決定する要因と生息環境整備の提案

Nakatsu Mitsuhiro, Kawaguchi Yoichi, Takegawa Yuya, 青山直寛

農業農村工学会全国大会 2013.9

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Venue：Tokyo

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四国における河川魚類を対象とした種の多様性の評価

Kagawa Yoshihiro, Takegawa Yuya, 赤坂卓美, 乾隆帝, 佐藤陽一, 河口拓紀, 井上幹生, Kawaguchi Yoichi

応用生態工学会第17回大会 2013.9

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Venue：Osaka

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自然環境の保全・再生に向けて

Kawaguchi Yoichi

徳島県環境基本計画シンポジウム~未来へつなぐ環境首都とくしまづくり~,徳島県・とくしま環境県民会議主催 2013.7

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Venue：Tokushima

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世界遺産・知床の冷水性サケ科魚類を脅かす水温上昇の現状-ダムは水温上昇を加速させるのか-

竹川有哉, Kawaguchi Yoichi, 谷口義則

中国四国地区生物系三学会合同大会 2013.5

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Venue：島根

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風力発電施設による衝突回避に向けた取り組み

Kawaguchi Yoichi

風力発電の環境影響評価と海ワシ保護に関するフォーラム 2013.3

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Venue：Sapporo

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世界遺産・知床の冷水性サケ科魚類を脅かす水温上昇の現状-ダムは水温上昇を加速させるのか-

Takegawa Yuya, Kawaguchi Yoichi, 谷口義則

日本生態学会第60回大会 2013.3

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Venue：Shizuoka

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温暖化と人為的改変が知床のオショロコマに及ぼす影響

Kawaguchi Yoichi, 谷口義則, Izumi Yutaro

日本生態学会第59回大会 2013.3

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Venue：Shiga

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日本列島におけるイワナ属の生息適地モデルとその保全計画への活用

Takegawa Yuya, 三橋弘宗, Kawaguchi Yoichi

日本生態学会第59回大会 2013.3

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Venue：Shiga

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水生動物を用いた " 川の健康診断 ":全国および地域スケールでの試み

赤坂卓美, 森照貴, Takegawa Yuya, 石山信雄, 井上幹生, 三橋弘宗, Kawaguchi Yoichi, 鬼倉徳雄, 三宅洋, 片野泉, 一柳英隆, 中村太士

日本生態学会第60回大会 2013.3

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Venue：Shizuoka

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貯水ダムの出現が河川内有機物に与える影響の評価

Bando Shinya, Kawaguchi Yoichi, 大串浩一郎, 野崎健太郎, 野口剛志, 手塚公裕, 濱岡秀樹, 関島恒夫

日本生態学会第60回大会 2013.3

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Venue：Shizuoka

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アユの美味しさは川の環境によって変わるのか ?

Uemura Yoshihiko, Kawaguchi Yoichi, 野崎健太郎

日本生態学会第60回大会 2013.3

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Venue：Shizuoka

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森と川と海の生態系のつながり

Kawaguchi Yoichi

徳島の自然 2012.10

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ダムと温暖化が知床半島の冷水性魚類に及ぼす影響

Kawaguchi Yoichi, 谷口義則

ELR2012 2012.9

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Venue：Tokyo

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ダム試験湛水前から運用初期における河川内有機物の質的変化

Bando Shinya, Kawaguchi Yoichi, 野口剛志, 濱岡秀樹, 手塚公裕, 佐藤雄大, 児玉大輔, 関島恒夫, 大串浩一郎

ELR2012 2012.9

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Venue：Tokyo

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北海道北部に生息するイトウの成長と食性

鈴木享子, 川原満, 藤本信治, 清水泰, 永井英俊, 吉冨友恭, Kawaguchi Yoichi, 大石麻美, 児玉大輔, 佐藤雄大, 関島恒夫, 森岡裕詞, 木村伸吾, 大竹二雄

ELR2012 2012.9

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Venue：Tokyo

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圃場整備水田域の水路網におけるドジョウの生息環境解析と分布域の地図化

Nakatsu Mitsuhiro, Takegawa Yuya, 青山直寛, Kawaguchi Yoichi

中国四国地区生物系三学会合同大会(島根大会) 2012.5

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Venue：島根県

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安定同位体比に注目した嘉瀬川ダム試験湛水前後における河川内有機物の質的変化

Bando Shinya, Kawaguchi Yoichi, 大串浩一郎

中国四国地区生物系三学会合同大会(島根大会) 2012.5

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Venue：島根県

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ダムのある・なしとアユの食味の関係

Uemura Yoshihiko, Kawaguchi Yoichi, 野崎健太郎

中国四国地区生物系三学会合同大会(島根大会) 2012

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Venue：島根県

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Practice of Nature Restoration for Local Revitalization by Local Residents and Administration International conference

Aoyama Naohiro, Morimoto Emi, Watanabe Ryugo, Kawaguchi Yoichi

2nd Asian Conference on Engineering Education 2011.10

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Language：English

Venue：TOKUUSHIMA,JAPAN

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圃場整備水田域における生き物を育む農法の質の向上にむけた取り組み

Takegawa Yuya, Kawaguchi Yoichi, 青山直寛, 中津充裕

応用生態工学会第15会金沢大会 2011.9

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Venue：Kanazawa

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降海型イトウの回遊履歴と胃内容物組成

鈴木享子, 吉冨友恭, Kawaguchi Yoichi, 江戸謙顕, 市村政樹, 藤本信治, 大竹二雄

応用生態工学会第15会金沢大会 2011.9

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Venue：Kanazawa

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圃場整備水田域における水系ネットワーク再生の提案∼経済と環境の両立を目指して∼

Takegawa Yuya, Kawaguchi Yoichi, Aoyama Naohiro, Nakatsu Mitsuhiro

土木学会四国支部会 2011.5

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Venue：Kagawa

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Red Claws crab Chiromantes haematocheir, as an indicator for evaluating urban green space. International conference

Shinomiya R., Inai S., Kawaguchi Yoichi, Kamada Mahito

2nd International Conference of Urban Design and Biodiverstiy-URBIO2010 2010.5

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Venue：Nagoya

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A study on seed dispersal by hydrochory in floodplain restoration International conference

Hayashi Hironori, Shimatani Yukihiro, Kawaguchi Yoichi

Proceeding of 3rd interagency conference on research in the watershed U.S. Geological Survey 2008.9

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Venue：East Park, CO

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The Current Status of Native Dolly Varden (Salvelinus malma) in Japan International conference

Taniguchi Yoshinori, Kawaguchi Yoichi

Proceeding of Wild Trout IX symposium 2007.9

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Venue：West Yellow Stone

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Improvement of a weir for Sakhalin taimen (Hucho perri) migration in the Sarukotsu River, northern Japan International conference

Kawaguchi Yoichi, Okamoto Masataka, Kasai Mikiya, Okamoto Tohru, Osanai Koichi, Iwase Haruo, Edo Kaneaki

Proceeding of Wild Trout IX symposium 2007.9

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Venue：West yellow stone

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Awards

優秀賞

2022.11 ICLEE 2022 Responses of aquatic insect adults and bat activity to different riverbed reaches in Naka river

Aie HIROKI, 佐藤雄大, 赤坂卓美, Kawaguchi Yoichi

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優秀口頭発表賞

2022.9 ELR2022つくば那賀川上流域の異なる土砂供給区間におけるコウモリの活動比較

Aie HIROKI, 佐藤雄大, 赤坂卓美, Kawaguchi Yoichi

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優秀発表賞

2022.5 土木学会四国支部技術研究発表会選択型実験を用いた知床でのエコツーリズムにおける潜在需要の評価

Ishizue Yuki, Kawaguchi Yoichi, 寺山元, WATANABE Kojiro, 佐藤雄大

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優秀発表賞

2022.5 土木学会四国支部技術研究発表会長安口ダム下流の置土がコウモリに及ぼす影響-異なる河床環境での比較

Aie HIROKI, Kawaguchi Yoichi, 佐藤雄大

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優秀ポスター研究発表賞

2019.9 応用生態工学会長安口ダム下流への置土が砂州の陸生節足動物に及ぼす影響

Nakanishi Jun, Kawaguchi Yoichi, 藪原佑樹

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優秀ポスター賞

2015.7 The Vth International Wildlife Management Congress Relation density of Dolly Varden and environmental factors in the Shiretoko Peninsula: Effects of Global Warming and Dams

Takegawa Yuya, Kawaguchi Yoichi, 谷口義則, 卜部浩一, 下田和孝

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日本景観生態学会第25回北九州大会「ポスター賞」

2015.6 日本景観生態学会希少猛禽類オジロワシの生息域推定と風力発電施設の適地推定による関係性解析

Hayashi Yusuke, Kawaguchi Yoichi, Takegawa Yuya, 赤坂卓美, 中川元

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優秀発表ポスター賞

2013.9 応用生態工学会四国における河川魚類を対象とした種の多様性の評価

Nakagawa Yoshihiro, Takegawa Yuya, 赤坂卓美, 乾隆帝, Satoh Yoichi, 河口拓紀, 井上幹生, Kawaguchi Yoichi

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優秀発表ポスター賞

2013.9 応用生態工学会ダムのある・なしにおけるアユの食味と藻類群集・水質との関係に関する研究

Uemura Yoshihiko, Kawaguchi Yoichi, 野崎健太郎

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ELR2012ポスター賞「動物系最優秀賞」

2012.9 ELR2012 降海型イトウの回遊履歴と胃内容物組成

鈴木享子, 吉冨友恭, Kawaguchi Yoichi, 江戸謙顕, 市村政樹, 藤本信治, 大竹二雄

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論文賞

2012.9 日本魚類学会 Distribution of the oriental weatherloach, Misgurnus anguillicaudatus, in paddy fields and its implications for conservation in Sado Island

Yuichi Kano, Kawaguchi Yoichi, Tomomi Yamashita, Yukihiro Shimatani

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Research Projects

地球温暖化による水温上昇と融雪出水増大が希少魚類の存続に及ぼす影響予測

Grant number：24K15265

2024.4 - 2028.3

System name：科学研究費助成事業

Research category：基盤研究(C)

Awarding organization：日本学術振興会

谷口義則, 河口洋一

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Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

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Night flying fauna and utilization of airspace niches

Grant number：23K18545

2023.6 - 2026.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Challenging Research (Exploratory)

Awarding organization：Japan Society for the Promotion of Science

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Grant amount：\6240000 （ Direct Cost: \4800000 、 Indirect Cost：\1440000 ）

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Evaluation of the current status of the reintroduction project of the Oriental White Stork Ciconia biyciana and proposal and implementation of true wildlife management

Grant number：21H03652

2021.4 - 2024.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

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Grant amount：\17680000 （ Direct Cost: \13600000 、 Indirect Cost：\4080000 ）

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Assessing the impact of super-large and small wind turbine on biodiversity

Grant number：20H04373

2020.4 - 2023.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

赤坂卓美

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Grant amount：\17680000 （ Direct Cost: \13600000 、 Indirect Cost：\4080000 ）

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Development of the space utilization model for White-tailed Eagles using fluid simulation and 3D positional information

Grant number：18H03412

2018.4 - 2021.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

河口洋一

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Grant amount：\17290000 （ Direct Cost: \13300000 、 Indirect Cost：\3990000 ）

Fifteen juvenile of white-tailed eagles were fitted with hourly GPS positioning devices, which successfully collected location data from one year to a maximum of less than four years. From the GPS positioning data, we were able to select the positions of the birds during their flight and reproduce the fluid (wind) conditions at that time.
Another continuous positioning multi-functional GPS was installed on six juvenile white-tailed eagles, and from their flight data, a typology of flight behavior (circling, flapping, and gliding) was conducted, and a typology method was established. In order to clarify the relationship between flight behavior type and wind conditions, we had to deal with the small number of individuals wearing the device and the extremely large amount of labor required for simulating wind conditions.

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Theoretical/practical study on the nation-wide management of the reintroduced Oriental White Stork population as a tool of biodiversity conservation/restoration.

Grant number：16H02994

2016.4 - 2019.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

Ezaki Yasuo

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Grant amount：\16640000 （ Direct Cost: \12800000 、 Indirect Cost：\3840000 ）

We have taken every respnsibility concerning "Science and Practice of the Oriental White Stork Reintroduction Program" after its start in 2005. In 2017 breeding region expanded from northern Kinki-district into Shikoku Island etc,, thus making a great step into the goal of "construction of the storks' meta-population structure." Conservation/restoration of terrestrial biodiversity were advanced by establishing the restoration method of the flood plain. Genetical exchange between wild and captive populations are done very well. And the method of making up agreements among people-administrators-scholars were made successfully, also.

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Climate change and dams as threats to the World Heritage Shiretoko: response by coldwater salmonid fish and a possible conservation plan

Grant number：25281055

2013.4 - 2016.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

KAWAGUCHI Yoichi

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Grant amount：\18200000 （ Direct Cost: \14000000 、 Indirect Cost：\4200000 ）

In the west coast of Shiretoko Peninsula, the water depth was shallow, velocity was low, and sunlight penetrated into the stream bed, all of which resulted in increasing the water temperature up to 25℃ in summer where dams were built densely along the stream course. The density of Dolly Varden in such a stream was low, and the fry was not confirmed.
Laboratory experiments showed that the Dolly Varden fries foraged less above 22℃, and they died at 26℃. Other experiments to clarify a defensive response of Dolly Varden to heat stress, the expression of
Hsp (heat-shock protein) 60s and 70 rose above 16℃. Field survey showed that the weight of ovaries were smaller as the expression of Hsp60 and 60s increased, and that the population density was low in the stream where the expression of Hsp60s and 70 was high. Thus, Hsp was shown to be an effective molecular index to detect the heat stress.

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Re-connecting the ecological network in the ditches of modernization of paddy field for the oriental weatherloach (Misgurnus anguillicaudatus) on Sado island

Grant number：22510030

2010.4 - 2013.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (C)

Awarding organization：Japan Society for the Promotion of Science

KAWAGUCHI Yoichi

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Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

The distribution of the oriental weatherloach, Misgurnus anguillicaudatus, together with related environmental factors were surveyed at 52 ditches of modernization in the Kuninaka region on Sado island. Analysis with GIS, GLM and AIC revealed that positive factors for the loach density were differed from each season. We also produced a GIS map that the predicted the density of loach across all ditches within the Kuninaka region. We discuss how the potential distribution map can be applied to the management of the oriental weathetloach.

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Evaluation of a suitable habitat for the crested ibis and the restoration scenario with satellite tracking of the re-introduced ibis

Grant number：21310149

2009.4 - 2012.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (B)

Awarding organization：Japan Society for the Promotion of Science

SEKIJIMA Tsuneo

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Grant amount：\17160000 （ Direct Cost: \13200000 、 Indirect Cost：\3960000 ）

To complete a restoration scenario for the resettlement of the crested ibis, we created the potential maps for predicting prey biomass, nesting habitat, and foraging habitat of ibis, using generalized linear model. By reflecting this information on the Sado city's strategy for improving biodiversity, a system that verify effectiveness of restoration scenario and modify it sustainably could be built up. Next, in order to evaluate whether re-introduced population will persist for 50 years on Sado Island, population viability analysis(PVA) was conducted using population parameters of wild population in China and revealed that establishment of the re-introduced population on Sado island will be difficult under current fragile reproduction.

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Evaluation of effects of global warming and instream structure on freshwater fish in the World Natural Heritage ? Shiretoko, Japan.

Grant number：19510017

2007.4 - 2011.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Scientific Research (C)

Awarding organization：Japan Society for the Promotion of Science

TANIGUCHI Yoshinori

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Grant amount：\4680000 （ Direct Cost: \3600000 、 Indirect Cost：\1080000 ）

Presence of approximately 200 dams was confirmed in the study streams and Dolly Varden density was lower in high dam-density streams. Because dam density was positively correlated with maximum summer water temperatures, construction of dams caused stream temperature increase and possibly shrunk the thermal habitat of the fish. Also, number of days exceeding water temperature of 22℃ was greater in the high dam-density streams compared to the low-dam density ones.

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Restoration work of water environment for recovery of Wild Japanese Crested Ibis on the Sado Island

Grant number：19710027

2007.4 - 2010.3

System name：Grants-in-Aid for Scientific Research

Research category：Grant-in-Aid for Young Scientists (B)

Awarding organization：Japan Society for the Promotion of Science

KAWAGUCHI Yoichi

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Grant amount：\3560000 （ Direct Cost: \3200000 、 Indirect Cost：\360000 ）

We modified river dikes and adjusted the stream grade to remove the barriers for fish movement and also installed fish corridors to allow the fishes to move freely between rivers, irrigation ditches, and rice paddy fields at the Tenno River in the island. In the river, we have found little difference in the abundance and biodiversity probably due to the short length of time investigated after the modification ; we expect to find some responses from the fish if we continue the monitoring. On the other hand, the fish biomass significantly increased in the paddies where the fish passes had been set.

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Environment and Disaster Prevention in Tokushima

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Country：Japan

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Surveying Practice

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Country：Japan

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Introduction to University Education

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Country：Japan

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Exercise for Career Plan

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Country：Japan

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Environmental Ecology

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Country：Japan

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Advanced Theory for Ecosystem Management

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Country：Japan

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Restoration Ecology

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Country：Japan

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Civil and Environmental Engineering Design Exercise

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Country：Japan

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Civil and Environmental Engineering Laboratory

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Country：Japan

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Presentation Method (D)

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Country：Japan

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Advanced Lecture in Technical English

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Country：Japan

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Environment and Disaster Prevention in Tokushima

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Country：Japan

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Science and Technology

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Country：Japan

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Introduction to Civil and Environmental Engineering

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Country：Japan

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Field and Environmental Ecology

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Country：Japan

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STEM Practice

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Country：Japan

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Fundamental Seminar on Civil and Environmental Engineering

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Country：Japan

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Advanced Environmental Systems Engineering

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Country：Japan

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Introduction to University Education

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Country：Japan

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Practice on Civil Engineering Projects

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Country：Japan

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Ecological Design of Landscape

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Country：Japan

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Advanced Environmental Ecology

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Country：Japan

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Synthetic Exercise in Engineering

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Country：Japan

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Ecological Hydroengineering

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Country：Japan

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Introduction to University Education

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Country：Japan

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Presentation Method (M)

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Teaching Experience

佐渡学概論:佐渡島の自然と人々の営み

2025
Institution name：新潟大学
トキをシンボルとした自然再生

2025
Institution name：新潟大学