Feeding activity and growth performance in self-feeding fish in response to lighting conditions

• Project/Area Number: 26660175
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Aquatic life science
• Research Institution: Kitasato University
• Principal Investigator: TAKAHASHI Akiyoshi 北里大学, 海洋生命科学部, 教授 (10183849)
• Co-Investigator(Kenkyū-buntansha): AMANO Masafumi 北里大学, 海洋生命科学部, 教授 (10296428) ; MIZUSAWA Kanta 北里大学, 海洋生命科学部, 講師 (70458743)
• Project Period (FY): 2014-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
• Keywords: キンギョ / 自発摂餌 / 背景色 / 摂餌量 / 青色LED光

Outline of Final Research Achievements

We established a self-feeding system for goldfish, which enabled it to continuously feed on demand. By using this system, we examined the effects of background color and blue LED light on the feeding and growth characteristics of goldfish. The results suggest that: 1) a black background promotes higher growth than does a white background, 2) blue LED light is more effective than fluorescent light in stimulating appetite, and 3) background colors affect energy metabolism rather than appetite.

Research Products

• [Journal Article] Involvement of melanin-concentrating hormone 2 in background color adaptation of barfin flounder Verasper moseri. (2015)
  • Author(s): Mizusawa K, Kawashima Y, Sunuma T, Hamamoto A, Kobayashi Y, Kodera Y, Saito Y, Takahashi A.
  • Journal Title: General and Comparative Endocrinology Volume: 214 Pages: 140-148
  • DOI: 10.1016/j.ygcen.2014.07.008
  • Peer Reviewed / Open Access
• [Journal Article] Molecular and functional characterization of opsins in barfin flounder (Verasper moseri) (2015)
  • Author(s): Satoshi Kasagi, Kanta Mizusawa, Naoto Murakami, Tadashi Andoh, Sumihisa Furufuji, Shoji Kawamura, Akiyoshi Takahashi
  • Journal Title: Gene Volume: 556 Issue: 2 Pages: 182-191
  • DOI: 10.1016/j.gene.2014.11.054
  • Peer Reviewed
• [Journal Article] Identification of mRNA coding for corticotropin-releasing hormone (CRH) and immunohistochemical detection of CRH peptide in the brain of the Japanese eel paying special attention to its relationship with gonadotropin-releasing hormone (2014)
  • Author(s): Amano, M., Mizusawa, N., Okubo, K., Amiya, N., Mizusawa, K., Chiba H., Yamamoto, N., Takahashi, A.
  • Journal Title: Cell and Tissue Research Volume: 356 Issue: 1 Pages: 243-251
  • DOI: 10.1007/s00441-013-1784-6
  • Peer Reviewed
• [Journal Article] Inhibitory effects of beta-endorphin on cortisol release from goldfish (Carassius auratus) head kidney: an in vitro study (2014)
  • Author(s): Yuki Kobayashi, Kanta Mizusawa, Yuta Arai, Hiroaki Chiba, Akiyoshi Takahashi
  • Journal Title: General and Comparative Endocrinology Volume: 204 Pages: 126-134
  • DOI: 10.1016/j.ygcen.2014.05.001
  • Peer Reviewed
• [Journal Article] Multifunctional roles of melanocyte-stimulating hormone and melanin-concentrating hormone in fish : evolution from classical body color change (2014)
  • Author(s): Takahashi, A., Mizusawa, K., Amano, M.
  • Journal Title: Aqua-BioScience Monographs Volume: 7 Issue: 1 Pages: 1-46
  • DOI: 10.5047/absm.2014.00701.0001
  • Peer Reviewed
• [Presentation] カレイ目魚類における視覚オプシン機能の進化 (2015)
  • Author(s): 笠木聡，水澤寛太，高橋明義
  • Organizer: 平成27年度日本水産学会春季大会
  • Place of Presentation: 東京都港区東京海洋大学
  • Year and Date: 2015-03-27 – 2015-03-31
• [Presentation] 光環境が自発摂餌キンギョの成長と摂餌に及ぼす影響 (2015)
  • Author(s): 水澤寛太，友松将巨，高橋明義
  • Organizer: 平成27年度日本水産学会春季大会
  • Place of Presentation: 東京都港区東京海洋大学
  • Year and Date: 2015-03-27 – 2015-03-31
• [Presentation] 魚類のカルシウム代謝に対する黒色素胞刺激ホルモンの影響 (2014)
  • Author(s): 鈴木信雄，服部淳彦，高橋明義
  • Organizer: 平成26年度日本動物学会中部支部大会能登大会
  • Place of Presentation: 石川県鳳珠郡能登町金沢大学環日本海域環境研究センター
  • Year and Date: 2014-11-22 – 2014-11-24
• [Presentation] Visual perception and neuroendocrine modulation in barfin flounder (Verasper moseri) in response to specific wavelengths of light (2014)
  • Author(s): Satoshi Kasagi, Kanta Mizusawa, Akiyoshi Takahashi
  • Organizer: The 39th Annual Meeting of the Japan Society for Comparative Endocrinology
  • Place of Presentation: 愛知県岡崎市岡崎コンファレンスセンター
  • Year and Date: 2014-11-07 – 2014-11-09
• [Presentation] Movement of the xanthophore population induced by reciprocal transplantation of dorsal and ventral scales in goldfish. (2014)
  • Author(s): Kanta Mizusawa, Takahiro Kanda, Ｙｕｔａｋａ Yamamura, Jose Miguel Cerda-Reverter, Akiyoshi Takahashi
  • Organizer: The 39th Annual Meeting of the Japan Society for Comparative Endocrinology
  • Place of Presentation: 愛知県岡崎市岡崎コンファレンスセンター
  • Year and Date: 2014-11-07 – 2014-11-09
• [Presentation] Relationship between a specific wavelength of light and the neuroendocrine system in fish (2014)
  • Author(s): Akiyoshi Takahashi, Satoshi Kasagi, Kanta Mizusawa
  • Organizer: 27th Conference of European Comparative Endocrinologists
  • Place of Presentation: France, Rennes, University of Rennes 1
  • Year and Date: 2014-08-25 – 2014-08-29