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Heat exchange with the environment and internal heat transfer during thermoregulation in fish

Research Project

Project/Area Number 21K14918
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 40040:Aquatic life science-related
Research InstitutionNagasaki University

Principal Investigator

Nakamura Itsumi  長崎大学, 海洋未来イノベーション機構, 助教 (60774601)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords行動的体温調節 / 外温性魚類 / バイオロギング / 体温 / 心電図 / 体温調節 / 温度生態 / 熱交換 / 心拍数
Outline of Research at the Start

外温性の魚類は外界の水温を使って体温を調節しているが、体温調節の際に外界との熱の交換を調節していることが明らかとなってきた。本研究は、外温性魚類の複数箇所の体温を計測することで、体温調節時の魚類の体温変化の様子を体内での熱の伝搬も含めた熱拡散モデルを用いて評価することを目的とする。また、心拍数を計測することで熱の交換の調節に血流が寄与するという仮説を検証し、魚類と温度環境との関わりの理解を深めることを目指す。

Outline of Final Research Achievements

Ectothermic fishes use the water temperature to regulate their body temperature, and they regulate heat exchange with environment during thermoregulation. To clarify the regulation of heat exchange during behavioral thermoregulation in ectothermic fishes, comparisons among thermoregulation of fish in different temperature environments, establish a method for measuring heart rate, and measurement of body temperature at multiple locations were conducted. As a result, the ability to prevent heat loss in low-temperature environments and changes in body temperature in fish occur from the deep body were found.

Academic Significance and Societal Importance of the Research Achievements

外温性魚類は水温による体温調節を行っていることから、環境変動によってその行動や生理状態が変化する可能性がある。外温性魚類の行動的体温調節に関する研究については、水温に対する行動についてのみ研究されており、魚類の体内における生理状態の変化を定量的にとらえた研究はない。本研究は、魚類の体温がどのように変化するかを体内の変化も捉えた研究として学術的な意義がある。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2024 2022 2021 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Marine fish foraging strategy in relation to behavioral thermoregulation2022

    • Author(s)
      中村 乙水
    • Journal Title

      JAPANESE JOURNAL OF ECOLOGY

      Volume: 72 Issue: 1 Pages: 85

    • DOI

      10.18960/seitai.72.1_85

    • ISSN
      0021-5007, 2424-127X
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermoregulation of ocean sunfish in a warmer sea suggests their ability to prevent heat loss in deep, cold foraging grounds2022

    • Author(s)
      Nakamura Itsumi、Yamada Morihiko
    • Journal Title

      Journal of Experimental Marine Biology and Ecology

      Volume: 546 Pages: 151651-151651

    • DOI

      10.1016/j.jembe.2021.151651

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Behavioural response of a whale shark during the passage of a typhoon2021

    • Author(s)
      Nakamura Itsumi、Tsuchida Hiroyuki、Tone Kazuki、Komeyama Kazuyoshi、Sasaki Akira、Kawabe Ryo
    • Journal Title

      Journal of Fish Biology

      Volume: 99 Issue: 6 Pages: 2052-2055

    • DOI

      10.1111/jfb.14892

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Ocean sunfish body temperature changing from the core during behavioral thermoregulation2024

    • Author(s)
      Itsumi Nakamura, Morihiko Yamada
    • Organizer
      The 8th International Bio-logging Science Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マンボウは内側から冷えたり温まったりする2022

    • Author(s)
      中村乙水、山田守彦
    • Organizer
      第18回日本バイオロギング研究会シンポジウム
    • Related Report
      2022 Research-status Report
  • [Remarks] マンボウは防寒対策ができる?水族館との共同研究によって明らかになったマンボウの能力

    • URL

      https://www.nagasaki-u.ac.jp/ja/science/science249.html

    • Related Report
      2021 Research-status Report
  • [Remarks] マンボウの体温低下抑止能力

    • URL

      https://itsumola.wixsite.com/itsumi/manbou3

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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