2012 Fiscal Year Final Research Report
Relationship between the larger foraminifer and surface water temperature of the Japan Sea
| Project/Area Number |
22510009
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Kanazawa University |
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Principal Investigator |
KATO Michio 金沢大学, 自然システム学系, 教授 (10093741)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Masayoshi 金沢大学, 環日本海域環境研究センター, 教授 (10121295)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 日本海 / 能登半島 / 大型有孔虫 / 三形性生活環 / 生息海域 / 無効分散 |
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| Research Abstract |
Based on core samples collected in Tsukumo Bay in the Noto Peninsula, Ishikawa Prefecture, the Larger foraminifera Amphistegina radiate have been present since the early 1900s. Amphistegina radiata generations from the Tsukumo Bay were determined based on their proloculus sizes. Absence of Schizont and Gamont generations may suggest abortive migration in the bay. In conclusion, the generations of Amphistegina radiata that occur in the Tsukumo Bay are likely Agamont and Schizont and although they reproduce, a trimorphic life cycle has not yet been completed.
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