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飼育条件下におけるマアナゴ生殖腺の周年変化-2 生殖腺の周年変化に及ぼす年齢の影響
https://kindai.repo.nii.ac.jp/records/23878
https://kindai.repo.nii.ac.jp/records/23878289e807f-f421-4370-bddb-f194bc71e257
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AN00379737-20230331-0015.pdf (1.3 MB)
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| Item type | ☆紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||
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| 公開日 | 2023-04-26 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | 飼育条件下におけるマアナゴ生殖腺の周年変化-2 生殖腺の周年変化に及ぼす年齢の影響 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Annual changes in the gonadal development of the common Japanese conger, Conger myriaster, under rearing conditions -2 Effects of age on the annual changes of gonadal development | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 著者 |
中村, 尚隆
× 中村, 尚隆
× 瀬川, 叡
× 家戸, 敬太郎
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| 言語 | ||||||||||||||||||
| 言語 | jpn | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題 | common Japanese conger, Conger myriaster, gonadal development, age, annual change | |||||||||||||||||
| 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 | |||||||||||||||||
| 著者(英) | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 値 | NAKAMURA, Naotaka | |||||||||||||||||
| 著者(英) | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 値 | SEGAWA, Satoshi | |||||||||||||||||
| 著者(英) | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 値 | KATO, Keitaro | |||||||||||||||||
| 著者 所属 | ||||||||||||||||||
| 値 | 近畿大学水産研究所富山実験場 | |||||||||||||||||
| 著者 所属 | ||||||||||||||||||
| 値 | 岩手県沿岸広域振興局水産部 | |||||||||||||||||
| 著者 所属 | ||||||||||||||||||
| 値 | 近畿大学水産研究所富山実験場: 近畿大学水産研究所白浜実験場 | |||||||||||||||||
| 著者所属(翻訳) | ||||||||||||||||||
| 値 | Toyama station, Aquaculture Research Institute, Kindai University | |||||||||||||||||
| 著者所属(翻訳) | ||||||||||||||||||
| 値 | Iwate Coastal Regional Development Bureau Department of Fisheries | |||||||||||||||||
| 著者所属(翻訳) | ||||||||||||||||||
| 値 | Toyama station, Aquaculture Research Institute, Kindai University: Shirahama station, Aquaculture Research Institute, Kindai University | |||||||||||||||||
| 版 | ||||||||||||||||||
| 出版タイプ | NA | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||||||||||
| 出版者 名前 | ||||||||||||||||||
| 出版者 | 近畿大学水産研究所 | |||||||||||||||||
| 書誌情報 |
近畿大学水産研究所報告 en : Bulletin of the Aquaculture Research Institute, Kindai University 号 23, p. 15-27, 発行日 2023-03-31 |
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| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 09117628 | |||||||||||||||||
| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | It has been shown that the common Japanese conger, Conger myriaster, may spawn several times rather than once in its lifetime. However, knowledge of their spawning ecology, including the age at which they spawn, is limited. Therefore, in this experiment, we compared the annual changes in the gonadal development between the second and third year of rearing fish in order to determine how different ages of the common Japanese conger affect in gonadal development under rearing conditions. As in the second year of rearing, the GSI of both males and females in the third year of rearing reached a maximum during the summer when the water temperature was rising, and the egg diameter of the females was also maximum. However, in the third year of rearing, GSI was lower in most months than in the second year of rearing, and there were significant differences in March, May, and October. Egg diameter was significantly higher in the third year of rearing in May and June, and the maximum annual egg diameter was also higher in the third year of rearing. Although there were distinctive changes in oocyte diameter composition and oocyte maturity stage in each year of fish, it was not possible to determine whether maturity was more advanced in any of the year of fish. It is necessary to compare the two age groups by actually inducing maturation in the future. | |||||||||||||||||
| フォーマット | ||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||
| 内容記述 | application/pdf | |||||||||||||||||
