2012 Fiscal Year Final Research Report
Marine ecosystem monitoring using seabirds as a tracer of food web and pollution
| Project/Area Number |
20241001
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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 |
Environmental dynamic analysis
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| Research Institution | Hokkaido University |
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Principal Investigator |
WATANUKI Yutaka 北海道大学, 大学院・水産科学研究院, 准教授 (40192819)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Katufumi 東京大学, 大気海洋研究所, 准教授 (50300695)
TAKAHASHI Akinori 国立極地研究所, 准教授 (40413918)
OKA Nariko 山階鳥類研究所, 研究員 (30203962)
TAKADA Hideshige 東京農工大学, 大学院・共生科学技術研究院, 教授 (70187970)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 生物海洋 / 海洋汚染 / バイオロギング |
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| Research Abstract |
We developed a new method to monitor marine pollution using the movement of seabirds and the pollutants in their tissues. We tracked more than 130 individuals of two species of shearwaters using bio-logging techniques. Persistent Organic Pollutant in preen gland oil varied among breeding individuals foraging in the different areas and the trends were different between PCBs, DDTs and HCHs. The mercury in feathers that were replaced in the wintering areas varied among birds wintering in different seas. These regional variations can be explained by the source and dispersion of these pollutants. This technique gives us the spatial pattern of marine pollution at the scale that is required for marine spatial planning.
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