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Observations of the Reproductive Cycle of Petrolisthes japonicas (de Haan) (Anomura: Porcellanidae)
http://hdl.handle.net/20.500.12000/23471
http://hdl.handle.net/20.500.12000/23471ca752c90-04c0-4aa9-a5d2-daf494fd2e8b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
No15p127.pdf
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| Item type | デフォルトアイテムタイプ（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2012-02-28 | |||||||||
| タイトル | ||||||||||
| タイトル | Observations of the Reproductive Cycle of Petrolisthes japonicas (de Haan) (Anomura: Porcellanidae) | |||||||||
| 言語 | en | |||||||||
| 作成者 |
Nakasone, Yukio
× Nakasone, Yukio
× 仲宗根, 幸男
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | The reproductive cycle of Petrolisthes japonicus (de Haan) was studied in Fukuoka during 1966-67. 1) The ovigerous females were found in the crab population from the end of May to the beginning of November. The reproductive season was approximately five months. 2) The females of the species produced three broods per year and the egg deposition occurred at every about six weeks during the reproductive season. The females had ova which will produce fourth brood, but their ova were not able to develop into eggs, probably because of low water temperature and were absorbed. 3) The start of maturity in the females occurred at about 4.1 mm in carapace length, although a single ovigerous female (3. 3mm) less than 1.1 mm was found in the samples. Ovigerous females ranged from 3.8 to 8.5 mm in carapace length and from 30 to 381 in the number of eggs. 4) The females of the species may incubate in a year after hatching. | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要論文 | |||||||||
| 出版者 | ||||||||||
| 出版者 | 琉球大学理工学部 | |||||||||
| 言語 | ja | |||||||||
| 出版者 | ||||||||||
| 出版者 | Science and Engineering Division, University of the Ryukyus | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | NA | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||
| 識別子 | ||||||||||
| 識別子 | http://hdl.handle.net/20.500.12000/23471 | |||||||||
| 識別子タイプ | HDL | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN0025080X | |||||||||
| 収録物名 | ||||||||||
| 収録物名 | 琉球大学理工学部紀要. 理学編 | |||||||||
| 言語 | ja | |||||||||
| 収録物名 | ||||||||||
| 収録物名 | Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences | |||||||||
| 言語 | en | |||||||||
| 書誌情報 |
号 15, p. 127-135, 発行日 1972-03-01 |
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