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小型底びき網手繰第1種漁業(小手繰網漁業)の分離漁獲装置開発試験(1)
https://fra.repo.nii.ac.jp/records/2011688
https://fra.repo.nii.ac.jp/records/2011688ac93e5b1-00f8-463e-9b81-d715c2b28954
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-10-11 | |||||||||||
| タイトル | ||||||||||||
| タイトル | 小型底びき網手繰第1種漁業(小手繰網漁業)の分離漁獲装置開発試験(1) | |||||||||||
| 言語 | ja | |||||||||||
| タイトル | ||||||||||||
| タイトル | A trial for the development of a separation device for a danish seine (koteguri-ami) - 1 | |||||||||||
| 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 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 著者 |
井上, 悟
× 井上, 悟× 檜山, 節久
× 永松, 公明× 藤石, 昭生 |
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The catches of a Danish seine, called Koteguri-ami, involve many unusable and small usable fish that are only discarded. As a part of the improvement of this fishing gear to preserve young fish and to reduce the time of manual selection, we tried to develop a separation device which releases those fish alive during hauling. Nine experimental hauls were conducted off the northwest coast of Hagi on July 21st, September 14th and November 14th of 1996. The currently used seine was modified into a two-level seine with a partition net and a square-mesh separator was attached to the mouth of the lower level. The leg lengths of the mesh were 40mm and 60mm. Although the height of the net mouth of the lower level was small in July, it attained the designed value in November after some improvements in the gear. A total of nearly 36,000 individuals were caught. As staple catches, 16 species were chosen which were dominant in number. Separation efficiencies, defined as the proportion of catch number of the upper codend and the lower codend, were discussed based on the conditions of the separator and the height of the lower net mouth for the 16 staple species. The characteristics of the separation efficiencies were determined for each species. Meanwhile, separation efficiencies based on body length were not discussed because of the few catches in the lower codend. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
ja : 水産大学校研究報告 en : Journal of National Fisheries University 巻 47, 号 3, p. 129-138, ページ数 10, 発行日 1999-02 |
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| 出版者 | ||||||||||||
| 出版者 | 水産大学校 | |||||||||||
| 言語 | ja | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | National Fisheries University | |||||||||||
| 言語 | en | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 0370-9361 | |||||||||||
| 書誌レコードID | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AN00124678 | |||||||||||
| 情報源 | ||||||||||||
| 識別子タイプ | Local | |||||||||||
| 関連識別子 | fishu_k_47_129 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010592507 | |||||||||||
| 言語 | ja | |||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||
