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Behavioral Physiology Research on Survival of Fish after Escape from Fishing Gears

Research Project

Project/Area Number 05660203
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field General fisheries
Research InstitutionTokyo University of Fisheries

Principal Investigator

ARIMOTO Takafumi  Tokyo Univ.of Fisheries, Faculty of Fisheries Sci., Professor, 水産学部, 教授 (20106751)

Co-Investigator(Kenkyū-buntansha) AKIYAMA Seiji  Tokyo Univ.of Fisheries, Faculty of Fisheries Sci., Assist.Prof., 水産学部, 助手 (00251679)
INADA Hiroshi  Tokyo Univ.of Fisheries, Faculty of Fisheries Sci., Assist.Prof., 水産学部, 助手 (90176397)
TOKAI Tadashi  Tokyo Univ.of Fisheries, Faculty of Fisheries Sci., Assoc.Prof., 水産学部, 助教授 (30237044)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1993: ¥900,000 (Direct Cost: ¥900,000)
KeywordsStress / Survival / Gear Selectivity / Capture Process / Purse Seine / Trawl / Set net / Longline / 投棄魚 / 脱出魚 / 釣り / トロール漁法 / 引縄漁法 / 心電図
Research Abstract

Conservation Harvesting Technology is the future goal for the sustainable fisheries towards the 21st Century. To develop this new concept, the stress and survival of fish after escape from the fishing gears have been examined in relation to the capture process of different fishing gears such as trawl, purse seine, gill-net, set-net and longline. As the first step of this research, previous works on the stress response of fish were reviewed from the various kind of sources around the world. For the stress measurement, the change of plasma cortisol level due to the handling and capture process was investigated with the radio-isotope techniques. The electrocardiogram (ECG) bio-telemetry technique was also employed to measure the real-time response by means of pingger transmitter. Both two methods were successful for determining the stress response of fish in relation to the experimental fishing by several defferent gears. The damage and survival of fish was also examined during these experiment according to the time sequence after being captured and after being released or escaping from the gears. As the results, each fishing gear has the defferent capture mechanism, so as to show the different stress aspects. For example, the longline gear is more friendly to the captured fish, i.e.less stress due to the free swimming even in the captured conditions. On the contrary, the fish can be damaged severely by the gill-net, so that an immediate or elongated death can be recorded. These condition of fish can be analyzed with the plasma cortisol level in relation to the stressor intensity of each fishing gear.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] フランク ショパン: "The condition of fish escaping from fishing gears-a review" Fisheries Research. 21. 315-328 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] フランク ショパン: "The use of plasm a cortisol kits for useasuring the stress response in fish due to handling and capture" Journal of Tokyo University of Fisheries. 82. 79-90 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] フランク ショパン: "漁具選択性、生残性研究の現状と展望" 日本水産学会誌. 60. 695-696 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 有元 貴文: "魚の行動生理学と漁法" 恒星社厚生閣, 128 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] F.S.M.Chopin and T.Arimoto: "ICES approach to Gear Selectivity and Fish Survival Research" Nippin Suisan Gakkaishi. 60(5). 695-696 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] F.S.M.Chopin and T.Arimoto: "The condition of fish escaping from fishing gears" Fisheries Research. 21(3-4). 315-328 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] F.S.M.Chopin, T.Arimoto, N.Okamoto and A.Tsunoda: "The use of plasma cortisol kits for measuring the stress response in fish due to hadling and capture" Journal of Tokyo Univ.Fish. 82(1). 79-90 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takafumi ARIMOTO and Kenji NANBA: "Fish Behavior and Physiology for Fish Capture Technology" Koseisha-koseikaku. 128 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] フランク ショパン: "The condition of fish escaping from fishing gears-a review" Fisheries Research. 21. 315-328 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] フランク ショパン: "The use of plasma cortisol kits for measuring the stress response in fish due to handling and capture" Journal of Tokyo University of Fisheries. 82. 79-90 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 有元貴文: "魚の行動生理学と漁法" 恒星社厚生閣, 128 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Frank CHOPIN: "漁具選択性・生残性研究の現状と展望" 日本水産学会誌. 60(5). 695-696 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Frank CHOPIN: "The condition of fish after escape from fishing gears" Fisheries Research. 21(3-4). 315-327 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Frank CHOPIN: "Investigation of methods to measure stress response in fish escaping from fishing gears" 東京水産大学研究報告. (印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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