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メキシコ・エビトロール漁船を用いたカリフォルニア湾底魚資源評価
https://fra.repo.nii.ac.jp/records/2011613
https://fra.repo.nii.ac.jp/records/2011613bd50b6a3-6eca-400d-9422-b84c471b4f0e
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-10-11 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | メキシコ・エビトロール漁船を用いたカリフォルニア湾底魚資源評価 | |||||||||||||||
| 言語 | ja | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Evaluation of demersal fishery resources of the Gulf of California using Mexican shrimp trawlers | |||||||||||||||
| 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 |
Flores, Jorge O.
× Flores, Jorge O.
× Rodriguez, Manuel
× 清水, 誠
× 町井, 紀之 |
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | The purpose of this study, Escama '92 project, was to determine resource and economic indicators for demersal fishes with reference to a commercial fishery in the Gulf of California, Mexico. The authors examined actual demersal resources before introducing bottom trawl fishery during the shrimp fishery off season. This study was carried out using a bottom trawl net adapted to the Mexican standard shrimp trawler ITMAR-I (GT=101.42 tons and HP=402 ps). A total of 504 hauls was conducted over a 5-month period between March 12 and August 13, 1992. And a total of 140.0 t was caught during the period. Predominant species found in the Gulf of California were: sea chub (sciaenidae), diamond stingray (dasyatidae), and torpedo ray (rhinobatidae), which comprised about three-fourths of the total catch. Sea chub comprised one third of the total catch. For the overall catch, catch per hour was 92.8 kg/h and catch per area was 370x10-6 kg/m2. Total income and cost were calculated as $80,664 and $46,903, respectively. The net profit was $33,761, while the ratio of income-to-cost was 1.72. Net profit was calculated as: (1) per hour=22.4 $/h; (2) per area=89x10-6 $/m2; and (3) per catch=0.241 $/kg. Cost was mainly fuel oil and wages (67.2%), with fuel oil comprising about one half of the overall cost (48.4%). Among the four zones studied, zone 3 was a productive fishing ground in weight, while catch from zone 1 was the highest in value. Common sole and sea chub were predominant in the shallower zone 1 located near the Gulf entrance. In contrast, torpedo ray, diamond stingray and Cortez angelfish were abundant in the inner zone of the Gulf of California. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 書誌情報 |
ja : 水産大学校研究報告 en : Journal of National Fisheries University 巻 44, 号 1, p. 9-19, ページ数 11, 発行日 1995-12 |
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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_44_9 | |||||||||||||||
| 関連サイト | ||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010542834 | |||||||||||||||
| 言語 | ja | |||||||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||||||
