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Background color may modulate seawater adaptability in fish

Research Project

Project/Area Number 22658060
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field General fisheries
Research InstitutionKitasato University

Principal Investigator

TAKAHASHI Akiyoshi  北里大学, 海洋生命科学部, 教授 (10183849)

Co-Investigator(Kenkyū-buntansha) CHIBA Hiroaki  北里大学, 海洋生命科学部, 准教授 (50236816)
MIZUSAWA Kanta  北里大学, 海洋生命科学部, 講師 (70458743)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,560,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords水産学 / 生理学 / 光環境 / 海水適応 / 水・電解質代謝 / サクラマス / メラニン凝集ホルモン / メラニン凝集ホルモン受容体 / 背地色 / 白背地 / 黒背地 / 鰓 / Na+,K+-ATPase / 電解質 / 白色水槽 / in situハイブリダイゼーション法 / 免疫組織染色法 / 黒色素胞刺激ホルモン / MSH / メラノコルチン受容体 / MCR / 浸透圧調節
Research Abstract

We previously found that masu salmon (Oncorhynchus masou) reared on a white background showed better seawater adaptability than those reared on a black background. Herein, we investigated the association of the hypothalamo-pituitary system, in which the production of hormones varies in response to background color changes, with seawater adaptability and electrolyte metabolism. The following important results were obtained. Firstly, rearing masu salmon on a white background resulted in a paler body color and an increase in the activity of Na+K+ATPase (NKA) in gills. Secondly, in vivo treatment with melanin-concentrating hormone, which is produced in the hypothalamus, increased gill NKA activity. Finally, expression of the melanin-concentrating hormone receptor gene was detected in the chloride cells in gills. These results suggest that background color influences osmoregulation in gills via melanin-concentrating hormone.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (11 results)

All 2013 2012 2011

All Journal Article (6 results) (of which Peer Reviewed: 3 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] Melanocortinsystemsonpigmentdispersioninfishchromatophores2012

    • Author(s)
      小林勇喜
    • Journal Title

      frontiers in ENDOCINOLOGY

      Volume: 3-9 Pages: 1-6

    • DOI

      10.3389/fendo.2012.00009

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chum salmon fry grow faster in seawater, exhibit greater activity of the GH/IGF axis、higher Na+, K+-ATPase activity, and greater gill chloride cell development2012

    • Author(s)
      Iwata, M., Kinoshita, K., Moriyama, S., Kurosawa, T., Iguma, K., Chiba, H., Ojima, D., Yoshinaga, T., Arai, T
    • Journal Title

      Aquaculture

      Volume: 362-363 Pages: 101-108

    • Related Report
      2012 Final Research Report
  • [Journal Article] Chum salmon fry grow faster in seawater, exhibit greater activity of the GH/IGF axis, higher Na+, K+-ATPase activity, and greater gill chloride cell development2012

    • Author(s)
      Iwata M
    • Journal Title

      Aquaculture

      Volume: 362-363 Pages: 101-108

    • DOI

      10.1016/j.aquaculture.2010.10.035

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 魚類・光・内分泌~体色と食欲の深い仲2011

    • Author(s)
      高橋明義,小林勇喜,山野目健,水澤寛太
    • Journal Title

      ビオフィリア

      Volume: 7 Pages: 31-36

    • Related Report
      2012 Final Research Report 2010 Annual Research Report
  • [Journal Article] Signalling pathway of goldfish2011

    • Author(s)
      Hamamoto, A., Mizusawa, K., Takahashi, A., and Saito, Y
    • Journal Title

      melanin-concentrating hormone receptors 1 and 2. Regul Pept

      Volume: 169 Pages: 6-12

    • Related Report
      2012 Final Research Report
  • [Journal Article] Signalling pathway of goldfish melanin-concentrating hormone receptors 1 and 22011

    • Author(s)
      Hamamoto A, Mizusawa K, Takahashi A, Saito Y
    • Journal Title

      Regul. Pept.

      Volume: 169 Issue: 1-3 Pages: 6-12

    • DOI

      10.1016/j.regpep.2011.04.001

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 特定波長光を活用した魚類養殖技術の開発 シンポジウム:水産における光利用技術と基礎研究の動向2013

    • Author(s)
      高橋明義,水澤寛太,古藤澄久,菊地重人
    • Organizer
      平成25年度日本水産学会春季大会
    • Place of Presentation
      東京
    • Year and Date
      2013-03-30
    • Related Report
      2012 Final Research Report
  • [Presentation] 特定波長光が魚類の神経内分泌系に影響を及ぼす可能性について シンポジウム:魚類における神経内分泌現象研究の最新動向2012

    • Author(s)
      高橋明義,山野目健,阿見彌典子,水澤寛太 天野勝文
    • Organizer
      日本下垂体研究会第27回学術集会
    • Place of Presentation
      天童
    • Year and Date
      2012-08-11
    • Related Report
      2012 Final Research Report
  • [Presentation] 特定波長光が魚類の神経内分泌系に影響を及ぼす可能性について2012

    • Author(s)
      高橋明義
    • Organizer
      日本下垂体研究会第27回学術集会
    • Place of Presentation
      天童
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] サクラマスの海水適応におけるメラニン凝集ホルモンの関与2011

    • Author(s)
      石塚光,栗栖亮,小林勇喜,山野目健,水澤寛太,千葉洋明,高橋明義
    • Organizer
      平成23年度日本水産学会秋季大会
    • Place of Presentation
      長崎
    • Year and Date
      2011-09-30
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] サクラマスにおけるメラニン凝集ホルモン遺伝子発現に対する水槽色の効2011

    • Author(s)
      栗栖亮,石塚光,小林勇喜,山野目健,水澤寛太,千葉洋明,高橋明義
    • Organizer
      サクラマスにおけるメラニン凝集ホルモン遺伝子発現に対する水槽色の効
    • Place of Presentation
      長崎
    • Year and Date
      2011-09-30
    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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