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東シナ海大陸棚斜面におけるDSLについて
https://fra.repo.nii.ac.jp/records/2011491
https://fra.repo.nii.ac.jp/records/201149118de4324-0054-4579-9e2c-f56c2453b4ed
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-10-11 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | 東シナ海大陸棚斜面におけるDSLについて | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Deep scattering layer of the continental slope in the East China Sea | |||||||||||||||||
| 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 |
内田, 和良
× 内田, 和良× 濱野, 明× 巽, 重夫
× 廣瀬, 誠
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| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | The authors participated in intensive research in the unexploited fishery resources along continental slope in the East China Sea in 1978 and 1979, where they carried out investigations with trawl net, by-line type bottom longline, and echo-sounder. They also observed water temperature with XBT and DBT. Dense reactions of SL and DSL were observed on echosounders all over the area of investigation. The results obtained are summarized as follows: 1) The occurrences of SL and DSL well corresponded to the thermocline. SL were mostly observed at the upper part of the thermocline. DSL were observed at the lower part of the thermocline during daytime, and were not seen where the vertical distribution of temperature varied noticeably in the areas. 2) The occurrences of DSL seemed to be related not to the bottom topography but to the isothermal layer. 3) The catches in the minnow net covering the cod end of the ordinal trawl net, which was operated in waters with dense reactions of DSL, were the so-called micronekton. One kind of fish and one kind of shrimp were most abundant: Maurolicus muelleri (20 kg) and Oplophorus gracilirostris (2.5 kg) in a single haul. 4) These two species had the follwing size and weight, whose average are shown in parenthesis. Maurolicus muelleri (N=55) Total length 36.3-54.1 mm (45.5 mm) Body weight 0.4- 1.5 g (0.9 g) Oplophorus gracilirostris (N=53) Body length 35.3-53.9 mm (43.5 mm) Body weight 0.8- 2.7 g (1.5 g) Both seemed to be adult and M.muelleri had ovarian ova of 0.30-0.55 mm in diameter. 5) The authors considered that, judging from the evidence records on a net recorder, the main components of DSL observed in the waters of the upper edge of continental slope in the East China Sea might be the micronekton with the considerable ability of swimming. |
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| 言語 | en | |||||||||||||||||
| 書誌情報 |
ja : 水産大学校研究報告 en : The Journal of the Shimonoseki University of Fisheries 巻 34, 号 1, p. 105-114, ページ数 10, 発行日 1986-01-31 |
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| 出版者 | ||||||||||||||||||
| 出版者 | 水産大学校 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | the Shimonoseki University of Fisheries | |||||||||||||||||
| 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_34_105 | |||||||||||||||||
| 関連サイト | ||||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010343539 | |||||||||||||||||
| 言語 | ja | |||||||||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||||||||
