| Project/Area Number |
15K18731
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | Kumamoto University (2017)
Fisheries Research and Education Agency (2015-2016) |
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Principal Investigator |
Yamada Katsumasa 熊本大学, くまもと水循環・減災研究教育センター, 特別研究員 (80569195)
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| Research Collaborator |
YAMAKITA Takehisa Saga Prefectural Ariake Fisheries Research Center
NAKANO Tadashi Saga Prefectural Ariake Fisheries Research Center
MIYAMOTO Yasushi Saga Prefectural Ariake Fisheries Research Center
OKAMURA Kazumaro Saga Prefectural Ariake Fisheries Research Center
KOMORITA Tomohiro Kumamoto Prefectural Fisheries Research Center
KOBAYASHI Jun Kumamoto Prefectural Fisheries Research Center
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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 |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | アミノ酸安定同位体比 / アゲマキ / 好適環境 / 生存戦略 / 摂餌生態 / 個体群減耗要因 |
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| Outline of Final Research Achievements |
Individuals of Sinonovacula constricta (Lamarck, 1818) and of these potential predator species (e.g., crab and polychaeta) were captured in Ariake sea, Kyushu, Japan. The results of stomach and gut contents (under microscope), and stable isotope (SI) of C, N and nitrogen SI of amino acids (Phe and Gul) of these individuals suggested that (1) S. constricta mainly preferred the diatom within bottom mud as its diet, but detritus and carrion within mud were also assimilated slightly, and (2) juvenile (< 2cm) of S. constricta were ingested by mainly crab species. In order to assess suitable habitat for S. constricta in Ariake sea, the results of (1) and (2) and physiochemical environments of bottom and its surface water were comprehensively evaluated. The results of this spatial elucidate suggested that areas of the actual habitat of S. constricta in Ariake sea were quite narrow compared with areas of the potential suitable habitat for this species.
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