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太平洋全体におけるクロマグロの漁獲量，年齢別漁獲尾数の推定
https://fra.repo.nii.ac.jp/records/2002171
https://fra.repo.nii.ac.jp/records/20021715a97c9d6-11af-4ed8-9668-c1a82b5bcf6a
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-04-22 | |||||||||||
| タイトル | ||||||||||||
| タイトル | 太平洋全体におけるクロマグロの漁獲量，年齢別漁獲尾数の推定 | |||||||||||
| 言語 | ja | |||||||||||
| タイトル | ||||||||||||
| タイトル | Estimation of Total Catch in Weight and Catch-at-Age in Number of Bluefin Tuna Thunnus orientalis in the Whole Pacific Ocean | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Pacific bluefin tuna; Thunnus orientalis; catch at age; Japanese fishery | |||||||||||
| 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 |
伊藤, 智幸
× 伊藤, 智幸
|
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Japanese official statistics do not have a specific species category corresponding to Pacific bluefin tuna Thunnus orientalis, and only have two categories which include Pacific bluefin tuna together with other Thunnus species. The annual catch in weight and catch at age in number of bluefin tuna in the whole Pacific Ocean during 47 years from 1951 to 1997 were estimated in this study. Catch of bluefin tuna was extracted from the statistics based on the fishing methods and areas. The estimation also relied on detailed information on catch and landing of bluefin tuna in recent years obtained at various fish markets. Among total catch in the Pacific Ocean, Japanese catch was dominant (73% in total weight and 81% in total number) followed by catches by the USA and Mexico (25% in total weight and 19% in total number). Young fish of age 0-2 had occupied 93% of total catch in number since the 1950s to the 1990s. Average proportion of catch in weight by fishing method within the Japanese catch were 46% by purse seine, 14% by trolling, 14% by set net, 12% by longline, 8% by pole-and-line and 2% by driftnet. Catch in weight by purse seine has been the largest for all years observed and its proportion increased in the 1990s due to significant increase of catches of young fish in the East China Sea. Catch proportion in number by purse seine was also the largest for fish older than age 2 in all years as well as for age 1 fish in the 1990s. Age 0 fish was mainly caught by trolling | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
ja : 遠洋水産研究所研究報告 en : Bulletin of National Research Institute of Far Seas Fisheries 巻 38, p. 83-111, ページ数 29, 発行日 2001-03 |
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| 出版者 | ||||||||||||
| 出版者 | 遠洋水産研究所 | |||||||||||
| 言語 | ja | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | The National Research Institute of Far Seas Fisheries | |||||||||||
| 言語 | en | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 0386-7285 | |||||||||||
| 書誌レコードID | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AN00025949 | |||||||||||
| 情報源 | ||||||||||||
| 識別子タイプ | Local | |||||||||||
| 関連識別子 | enyo_k_38-83 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010622406 | |||||||||||
| 関連名称 | 日本農学文献記事索引 （AgriKnowledge） | |||||||||||
