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Morphological and physiological characteristics of an oceanic-migrating Japanese eel Anguilla japonica off Fukushima, Japan
https://doi.org/10.15083/00040615
https://doi.org/10.15083/00040615f0f44ce4-752c-43a1-81af-36e394770c43
名前 / ファイル | ライセンス | アクション |
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CMS380102.pdf (620.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-08-11 | |||||
タイトル | ||||||
タイトル | Morphological and physiological characteristics of an oceanic-migrating Japanese eel Anguilla japonica off Fukushima, Japan | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Anguilla japonica | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | spawning migration | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | physiology | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | morphology | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | oocyte development | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | sex steroids | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/00040615 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Matsuya, Noriaki
× Matsuya, Noriaki× Hagihara, Seishi× Wada, Toshihiro× Ijiri, Shigeho× Adachi, Shinji |
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著者所属 | ||||||
著者所属 | Graduate School of Fisheries Sciences, Hokkaido University | |||||
著者所属 | ||||||
著者所属 | Soma Branch, Fukushima Prefectural Fisheries Experimental Station | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A female silver Japanese eel Anguilla japonica (681 mm TL) was captured by bottom trawl off Fukushima on 18 October 2013. This is the first report of an oceanic-migrating Japanese eel in the western North Pacific Ocean off northern Japan. We described the status of the silvering stage, morphological characteristics, age, developmental stage of the ovaries, and the serum levels of sex steroids for the eel. The GSI of the eel was 2.33 and the mean diameter of the largest group of oocytes was 269.9 μm and these were at the early vitellogenic stage. The serum E2 level was 3.9 ng/ml and 11-KT was 17.9 ng/ml. These steroid levels were higher than the mean steroid levels of female silver eels captured in Hamana Lake, but other morphological and physiological characteristics of the eel were not much different from those of silver eels captured in river, estuary, and coastal waters. | |||||
書誌情報 |
Coastal marine science 巻 38, 号 1, p. 8-11, 発行日 2015-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13493000 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11957899 | |||||
出版者 | ||||||
出版者 | International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo | |||||
出版者別名 | ||||||
東京大学大気海洋研究所国際沿岸海洋研究センター |