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北海道東部太平洋海域におけるイトヒキダラ Laemonema longipes の成熟度
https://fra.repo.nii.ac.jp/records/2001654
https://fra.repo.nii.ac.jp/records/2001654a7307e73-d04f-4988-996e-25b27b2ff336
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||
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| 公開日 | 2024-04-08 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | 北海道東部太平洋海域におけるイトヒキダラ Laemonema longipes の成熟度 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Maturity of Laemonema longipes in the Pacific area off eastern Hokkaido | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | jpn | |||||||||||||||||
| 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 | |||||||||||||||||
| アクセス権 | ||||||||||||||||||
| アクセス権 | metadata only access | |||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||||||
| 著者 |
濱津, 友紀
× 濱津, 友紀
× 八吹, 圭三
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | To clarify the reproductive character of Laemonema longipes, gonadal maturity was examined in fish caught by commercial boats in the Pacific area off eastern Hokkaido, from April 1994 to September 1996. No individuals that were spawning or were just before spawning were found in sampled fish, suggesting the absence of a spawning area of this species off eastern Hokkaido. Gonado-somatic index (GSI) of adult fish gradually increased from September to January in both sexes, however, the measured oocyte diameters(0.5mm) of the most developed ovaries were considerably smaller than the value of fully grown vitellogenic oocytes(0.7mm) in a previous report of Yokota and Kawasaki (1990). The monthly catch was large in autumn and spring off eastern Hokkaido. The rate of maturing fish in the catch was over 50% in September and decreased to 10-20% in November to January. Judging from these results, in addition to some previous reports, we propose a tentative scheme of spawning migration of adult Laemonema longipes between eastern Hokkaido and the spawning area near Kanto. The minimum body lengths of primary maturation were 410mm in females and 358mm in males, respectively. Half of the female individuals matured at about 500mm in body length, and all female individuals matured at about 550mm in body length. | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 書誌情報 |
ja : 北海道区水産研究所研究報告 en : Bulletin of the Hokkaido National Fisheries Research Institute 巻 61, p. 1-7, ページ数 7, 発行日 1997-03 |
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| 出版者 | ||||||||||||||||||
| 出版者 | 北海道区水産研究所 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | Hokkaido National Fisheries Research Institute | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||
| 収録物識別子 | 0513-2541 | |||||||||||||||||
| 書誌レコードID | ||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||
| 収録物識別子 | AN1015410X | |||||||||||||||||
| 情報源 | ||||||||||||||||||
| 識別子タイプ | Local | |||||||||||||||||
| 関連識別子 | hnf_k_61_1 | |||||||||||||||||
| 関連サイト | ||||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010560437 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||||||||
