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ペルー産ニベ科２魚種 (Paralonchurus peruanus および Sciaena deliciosa) に対する小型トロール網コッドエンドの網目の選択性
https://fra.repo.nii.ac.jp/records/2011680
https://fra.repo.nii.ac.jp/records/201168030bcee53-b29a-4ec4-bc65-b23a56fa083c
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-10-11 | |||||||||
| タイトル | ||||||||||
| タイトル | ペルー産ニベ科２魚種 (Paralonchurus peruanus および Sciaena deliciosa) に対する小型トロール網コッドエンドの網目の選択性 | |||||||||
| 言語 | ja | |||||||||
| タイトル | ||||||||||
| タイトル | Mesh selectivity of the cod-end of a small trawl net for two Peruvian drums (Paralonchurus peruanus and Sciaena deliciosa) from the Callao sea zone, Peru | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 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 |
Orrego A., Henry
× Orrego A., Henry
× Garayar M., Luis
× 須田, 有輔× 町井, 紀之 |
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Mesh selectivity experiments of the cod-end of a small trawl net were carried out in the coastal fishing zone off Callao, Peru. The studies were conducted using two different mesh sizes, 2" and 3". at the cod-end. The cod-end was entirely coverd with a 1 1/4" mesh net. Target fishes for the present study were two Peruvian drums (Paralonchurus peruanus and Sciaena deliciosa), representing 78% of the total weight caught. The body shape of these species is slightly different. Nonsymmetrical and symmetrical curves were applied for mesh selectivity of the cod-end. Three selectivity factors were used: 1) mean selection length (Lc, cm), 2) selection range (S.R, cm), and 3) selection factor (S.F, nondimensional). The S.F values were obtained as: 1) nonsymmetrical curve: for Coco; 3.21 in 3" mesh and 3.53 in 2" mesh; and for Lorna 3.30 in 3" mesh and 3.51 in 2" mesh. 2) symmetrical curve: for Coco; 3.21 in 3" mesh and 3.50 in 2" mesh, and for Lorna; 3.33 in 3" mesh and 3.53 in 2" mesh. The selectivity factors were compared between the nonsymmetrical and symmetrical curves. The results obtained were: 1) meam selection lengths (LC=L0.50) showed approximately the same values for both the nonsymmetrical and symmetrical curves, 2) the differences in the S.R value between the 3" and 2" meshes for the nonsymmetrical curve were shorter than those for the symmetrical curve, and 3) the S.F values between the 3" and 2" meshes in both the nonsymmetrical and symmetrical curves showed approximately the same pair values. | |||||||||
| 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 2, p. 55-68, ページ数 14, 発行日 1999-01 |
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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_47_55 | |||||||||
| 関連サイト | ||||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010592501 | |||||||||
| 言語 | ja | |||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||
