Study on migration of chub mackerel in the East China Sea
| Project/Area Number |
15K18736
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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 | Fisheries Research and Education Agency |
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Principal Investigator |
Yasuda Tohya 国立研究開発法人水産研究・教育機構, 西海区水産研究所, 主任研究員 (10550428)
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| Research Collaborator |
NAGANO Naoki 九州大学, 大学院農学研究科
KITANO Hajime 九州大学, 大学院農学研究科
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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 |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | バイオロギング / マサバ / ゴマサバ / 資源管理 / 生態 / 小型浮魚 / 東シナ海 / バイオテレメトリー / 回遊 / 資源生態 / 遊泳行動 / 海洋環境 / 記録計 / 実験 / 行動 / データロガー |
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| Outline of Final Research Achievements |
In this research project, we studied migration behavior of chub mackerel in the East China Sea using an animal-mounted electronic recording device. First, we investigated how to attach the recording device on the chub mackerel using tank experiments. To minimize mortality among tagged fish, it was recommend to tag chub mackerel during the winter, when temperature is <20°C. Subsequently, we attached the devices on wild chub mackerel and released them to the northern part of the East China Sea. The recording data showed that chub mackerel vertically migrated from the sea surface to the depths of maximum 180 m everyday for 166 consecutive days. The fish may modify the depth and amplitude of vertical migration in response to the vertical structuring of the water temperature because ambient temperatures of the fish remained within a narrow range from 16 to 20 °C in a vertically and seasonally heterogeneous thermal environment.
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Report
(4 results)
Research Products
(4 results)
