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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| 4thSEASTAR2000_40.pdf | 1.34 MB | Adobe PDF | 見る/開く |
| タイトル: | Nesting populations of sea turtle in Ishigaki Island, Okinawa |
| 著者: | Abe, Osamu Shibuno, Takuro Takada, Yoshitake Hashimoto, Kazumasa Tanizaki, Shigeo Ishii, Hisakazu Funakura, Yuji Sano, Kiyotaka Okamura, Yasushi |
| キーワード: | Chelonia mydas Caretta caretta nesting activity nesting population Okinawa |
| 発行日: | 2003 |
| 出版者: | Graduate School of Informatics, Kyoto University |
| 誌名: | Proceedings on the 4th SEASTAR2000 Workshop |
| 開始ページ: | 40 |
| 終了ページ: | 43 |
| 抄録: | The current status of the nesting activity of sea turtles in Ishigaki Island, Okinawa, Japan, was investigated. It was revealed that the dominant nesting species was changing from loggerhead turtle, Caretta caretta, to green turtle, Chelonia mydas in the most of the southern part of Japan. The nesting populations were evaluated to be 10-20 females of C. mydas and 3-8 females of C. caretta, annually. On the average, C. mydas re-migrate to nest every 3.7 years. The total number of females in C. mydas nesting population in Ishigaki was estimated to be 75 at most. The minimal estimation was 25, and in this case several females with low nest site fidelity were expected to migrate every year in addition. |
| 記述: | Organized by Graduate School of Informatics, Kyoto University ; Fisheries Laboratory of Kinki University ; JSPS Bangkok Liaison Office ; Informatics Research Center for Development of Knowledge Society Infrastructure December 11-13, 2003, Bangkok, Thailand |
| URI: | http://hdl.handle.net/2433/44129 |
| 出現コレクション: | Proceedings on the 4th SEASTAR2000 Workshop |
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