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Practical use of a fish farm to conserve the freshwater pearl mussel Margaritifera laevis (Unionoida, Margaritiferidae)

Research Project

Project/Area Number 26450260
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Aquatic bioproduction science
Research InstitutionGifu University

Principal Investigator

ITO KENGO  岐阜大学, 応用生物科学部, 准教授 (10303512)

Co-Investigator(Kenkyū-buntansha) 秋山 吉寛  国土技術政策総合研究所, 沿岸海洋・防災研究部, 研究官 (20532401)
近藤 高貴  大阪教育大学, 教育学部, 名誉教授 (50116159)
Co-Investigator(Renkei-kenkyūsha) KISHI Daisuke  岐阜県水産研究所, 試験研究部, 主任研究員 (80455526)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsカワシンジュガイ / 水産業 / 宿主 / 寄生 / 保全 / サクラマス / 希少種 / 淡水二枚貝 / 養魚場 / 幼生 / 寄宿種
Outline of Final Research Achievements

We tried to utilize a fish farm which cultivates a lot of host fish for preservation of Margaritifera laevis. As a result, it was revealed that even in the environment where host fish are inhabiting high density such as fish farm, it is possible to maintain sufficient population even for groomidium larvae discharged from few mother shell. The influence of larvae infestation on host fish was investigated. As a result, the number of parasitisms (several hundred per fish per host fish) required for maintaining the population of Kawashinjigai in this investigation site was higher than the growth rate and survival rate There was no effect.
As a result, it became clear that it is very effective to positively utilize places cultivating host fish at high density such as fishery industry to preserve bivalve bivalves.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (13 results)

All 2018 2017 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (12 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Microalgal community in fecal pellets of the freshwater pearl mussel Margaritifera laevis (Bivalvia: Margaritiferidae) in a drainage ditch connected to the Hida River, Gifu Prefecture, central Honshu, Japan2018

    • Author(s)
      Yoshihiro B. Akiyama, Daisuke Kishi, Kengo Ito, and Takaki Kondo
    • Journal Title

      Venus

      Volume: -

    • NAID

      130007412994

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] カワシンジュガイ稚貝の成長と分布2017

    • Author(s)
      伊藤健吾
    • Organizer
      淡水貝類研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 安定同位体を用いたカワシンジュガイにおける部位別ターンオーバー周期の評価2017

    • Author(s)
      平松麗奈,伊藤健吾
    • Organizer
      日本貝類学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Microalgal community detected in fecal pellets of the endangered freshwater pearl mussel Margaritifera laevis (Bivalvia, Margaritiferidae) in a ditch of Japan: an approach to clarify mussels' diets in the field.2017

    • Author(s)
      Akiyama YB, Kishi D, Itoh K, Kondo T.
    • Organizer
      BES, GFO, NECOV And EEF Joint Annual Meeting: Ecology Across Borders. C1.11, Belgium (Poster and Lighting Talks)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カワシンジュガイ寄生幼生が有する一時的な塩分耐性2016

    • Author(s)
      岸大弼、伊藤健吾、秋山吉寛、近藤高貴
    • Organizer
      第22回淡水貝類研究会
    • Place of Presentation
      岐阜大学応用生物科学部
    • Year and Date
      2016-10-22
    • Related Report
      2016 Research-status Report
  • [Presentation] 道東ポントコタン川におけるカワシンジュガイの流下状況2016

    • Author(s)
      伊藤健吾、近藤美麻
    • Organizer
      第22回淡水貝類研究会
    • Place of Presentation
      岐阜大学応用生物科学部
    • Year and Date
      2016-10-22
    • Related Report
      2016 Research-status Report
  • [Presentation] 養魚場を活用したカワシンジュガイの保全2016

    • Author(s)
      伊藤健吾、岸大弼、秋山吉寛、近藤美麻、近藤高貴
    • Organizer
      日本貝類学会全国大会
    • Place of Presentation
      東邦大学習志野キャンパス
    • Year and Date
      2016-04-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 養魚場を活用したカワシンジュガイの保全2016

    • Author(s)
      伊藤健吾
    • Organizer
      日本貝類学会全国大会
    • Place of Presentation
      東邦大学
    • Year and Date
      2016-04-16
    • Related Report
      2015 Research-status Report
  • [Presentation] カワシンジュガイの排泄物中に含まれる植物プランクトンの基礎調査2016

    • Author(s)
      秋山吉寛
    • Organizer
      日本貝類学会全国大会
    • Place of Presentation
      東邦大学
    • Year and Date
      2016-04-16
    • Related Report
      2015 Research-status Report
  • [Presentation] 高水温環境下におけるカワシンジュガイの生育状況2015

    • Author(s)
      黒田沙織・伊藤健吾・岸大弼・近藤美麻・秋山吉寛・近藤高貴
    • Organizer
      日本貝類学会27年度大会
    • Place of Presentation
      北海道蘭越町山村開発センター
    • Year and Date
      2015-05-23 – 2015-05-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 養魚場におけるカワシンジュガイ幼生の寄生状況2014

    • Author(s)
      黒田沙織・伊藤健吾・岸大弼・近藤美麻・秋山吉寛・近藤高貴
    • Organizer
      淡水貝類研究会第20回研究集会
    • Place of Presentation
      大阪教育大学柏原キャンパス
    • Year and Date
      2014-10-18
    • Related Report
      2014 Research-status Report
  • [Presentation] 生息地域の異なるカワシンジュガイの生長量の比較2014

    • Author(s)
      近藤美麻・黒田沙織・伊藤健吾・秋山吉寛・近藤高貴
    • Organizer
      淡水貝類研究会第20回研究集会
    • Place of Presentation
      大阪教育大学柏原キャンパス
    • Year and Date
      2014-10-18
    • Related Report
      2014 Research-status Report
  • [Presentation] カワシンジュガイ類の軟体部の状態を推定するパラメータの探索2014

    • Author(s)
      秋山吉寛・岩熊敏夫・伊藤健吾・近藤美麻・近藤高貴
    • Organizer
      淡水貝類研究会第20回研究集会
    • Place of Presentation
      大阪教育大学柏原キャンパス
    • Year and Date
      2014-10-18
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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