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小型底びき網手繰第1種漁業(小手繰網漁業)の適正目合
https://fra.repo.nii.ac.jp/records/2011702
https://fra.repo.nii.ac.jp/records/2011702245ef66c-9968-4c42-a0ca-1e0358a9dedb
| 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)の適正目合 | |||||||||||
| 言語 | ja | |||||||||||
| タイトル | ||||||||||||
| タイトル | Appropriate mesh size of a Danish seine (Koteguri-ami) | |||||||||||
| 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 | We had taken a survey on the catches of the Danish seine termed Koteguri-ami to preserve under-sized fish as reported before. We added a similar survey using a new mesh size of codend and in other months to clarify the appropriate mesh size of this fishery throughout the year. Catches obtained from nine experimental trawl hauls conducted off Hagi in March, April, and July of 1996 were used in the analysis. The mesh sizes used for the codend were 28 mm, 34 mm, 43 mm, and 60 mm. The cover net (25 mm mesh size) was attached to each codend. First, we chose catches which were dominant in number or in price as the staple catches in each month. Next, we examined their body length distribution. We then investigated the selective body length, if it was landed or discarded, the discarded ratio, and the appropriate mesh size of each species. The result was that using the 43 mm mesh size of the codend caused the discarded ratio in number to decrease and more young fish to escape ; it did not, however, cause the total catch landed to decrease much. A mesh size smaller than 43 mm was not needed to obtain staple catches. These results were in accord with that obtained in the former survey in October and November 1995. Finally, we concluded that the appropriate mesh size of the codend of this fishery was 43 mm throughout the year. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
ja : 水産大学校研究報告 en : Journal of National Fisheries University 巻 48, 号 3, p. 207-219, ページ数 13, 発行日 2000-01 |
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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_48_207 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010612456 | |||||||||||
| 言語 | ja | |||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||
