Stable isotope analysis of epidermal mucus to estimate food habits and migration without time lag
| Project/Area Number |
15K14792
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | Ryukoku University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
YONEKURA Ryuji 岐阜県水産研究所, 研究員 (40455514)
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| Research Collaborator |
SHIGETA Kanji
SAWADA Hayato
UEDA Yoshiki
HIRAISHI Yumiko
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 安定同位体 / 粘液 / 置換速度 / 濃縮係数 / 淡水魚類 / 魚類 / 安定同位体比 |
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| Outline of Final Research Achievements |
The goal of this project was to establish stable isotope analysis of fish epidermal mucus to estimate food habits and migration history without tame lags. We measured trophic discrimination factors and turnover rates of epidermal mucus of several freshwater fish species by experiments and showed that mucus isotopes turnover more quickly than widely-used muscle tissues, and that epidermal mucus can be repeatedly collected from living fish. In addition, we found that the growth and catabolic turnover rates correlate with each other, which may enable estimation of isotopic change of quickly-responding mucus in the field, where growth rates are only available. Thus, we propose the use of fish epidermal mucus for the isotope studies which require quick response or non-lethal sample collections.
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Report
(4 results)
Research Products
(28 results)
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[Journal Article] Environmental DNA as a ‘Snapshot’ of Fish Distribution: A Case Study of Japanese Jack Mackerel in Maizuru Bay, Sea of Japan2016
Author(s)
S Yamamoto, K Minami, K Fukaya, K Takahashi, H Sawada, H Murakami, S Tsuji, H Hashizume, S Kubonaga, T Horiuchi, M Hongo, J Nishida, Y Okugawa, A Fujiwara, M Fukuda, S Hidaka, KW Suzuki, M Miya, H Araki, H Yamanaka, A Maruyama, K Miyashita, R Masuda, T Minamoto, M Kondoh
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Journal Title
Plos One
Volume: 10
Issue: 4
Pages: e0153291-e0153291
DOI
NAID
Related Report
Peer Reviewed
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