2013 Fiscal Year Final Research Report
Artificial promotion of fish growth and reproduction via brain function in response to a photic environment
| Project/Area Number |
22248023
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
General fisheries
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MORIYAMA Shunsuke 北里大学, 海洋生命科学部, 教授 (50222352)
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)
ASAHINA Kiyoshi 日本大学, 生物資源科学部, 教授 (10147671)
ANDO Hironori 新潟大学, 自然科学系, 教授 (60221743)
OHIRA Tsuyoshi 神奈川大学, 理学部, 准教授 (10361809)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 魚類 / 成長 / 特定波長光 / 発光ダイオード / メラニン凝集ホルモン / 黒色素胞刺激ホルモン / マツカワ / キンギョ |
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| Research Abstract |
We found that, compared to the growth of fish under ambient lighting, the somatic growth of the barfin flounder (Verasper moseri) was stimulated by irradiation with a specific wavelength of light from a light-emitting diode (LED). The significant effects of LED light, especially green LED light, on growth promotion were observed even under low water temperature when body weight decreased because of reduced food intake during the experimental period. Our results suggest that irradiation with a specific wavelength of light could be useful in improving fish growth in aquaculture. Unexpected fluctuations were observed in the expression of hormonal genes associated with growth and feeding behavior. Thus, further experiments are necessary to understand the neuroendocrine mechanisms linking LED light and fish growth.
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[Journal Article] Food deprivation increases the expression of the prepro-orexin gene in the hypothalamus of the barfin flounder2012
Author(s)
Amiya, N., Mizusawa, K., Kobayashi, Y., Yamanome, Y., Amano, M., Takahashi, A.
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Journal Title
Verasper moseri. Zoological Scence
Volume: 29
Pages: 43-48
DOI
Peer Reviewed
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[Journal Article] Inhibiting roles of melanin-concentrating hormone for skin pigment dispersion in barfin flounder, Verasper moseri2011
Author(s)
Mizusawa, K., Kobayashi, Y., Sunuma, T., Asahida, T., Saito, Y., Takahashi, A.
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Journal Title
General and Comparative Endocrinology
Volume: 171
Pages: 75-81
DOI
Peer Reviewed
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[Presentation] Isolation and functional analysis of flounder opsins2013
Author(s)
Kasagi, S., Mizusawa, K., Murakami, N., Andoh, T., Kawamura, S., Takahashi, A.
Organizer
17th International Congress of Comparative Endocrinology
Place of Presentation
Barcelona
Year and Date
2013-07-16
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