| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2024-10-11 |
| タイトル |
|
|
タイトル |
日本海における曳縄実習(天鷹丸242次航海)の報告 |
|
言語 |
ja |
| タイトル |
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|
タイトル |
Report of Trolling Fishing Practice (T/V Tenyo-Maru’s 242nd voyage) in Japan Sea |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Fisheries; Fishery management; Fishery resources; Fisheries oceanography; Trolling fishing |
| 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 |
毛利, 雅彦
田上, 英明
大川, 託史
秦, 一浩
起田, 行央
後藤, 洋史
小勝, 正貴
菅原, 陽平
酒井, 健一
若林, 敏江
下川, 伸也
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The trolling fishing operations were carried out off Yamaguchi Prefecture of Japan Sea using our training vessel Tenyo-Maru in September 11 to 14, 2016. The results were as follows: i) A total of 17 common dolphins, Coryphaena hippurus, were caught. Their total length ranged from 51cm to 95cm, and their weight, from 1.1kg to 4.5kg. Of the common dolphins caught, ten were females, six, males and one, of an unknown sex, which means that females had a larger number and accounted for a little less than two-thirds. As for the content of the stomach, 12 individuals or a little larger than two-thirds had no content, and four took food. The content of the stomach included squid, Japanese anchovy, whitebait and some unknown small fish. ii) According to vertical sections of the water temperature and salinity obtained by our ocean observation with a CTD, the water temperature was ≧ 25℃ in the layers about 30m deep or less in all of the sea areas surveyed. The layers where the water temperature was ≧ 20℃ were distributed in the depth of about 30m or less in the north and became deeper in the coastal waters in the south, where the layers were equal to or more than about 50m in depth. Salinity was 32psu in all of the sea areas studied in the layers shallower than about 10m. The layers where the salt content was ≧ 33psu were deeper in the north and found in about 30m deep and grew shallower in the sea off the southern coasts, about a depth ≧ 10m. Common dolphins are distributed higher than about 25℃. |
|
言語 |
en |
| 書誌情報 |
ja : 水産大学校研究報告
en : Journal of National Fisheries University
巻 65,
号 4,
p. 267-273,
ページ数 7,
発行日 2017-03
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| 出版者 |
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|
出版者 |
水産大学校 |
|
言語 |
ja |
| 出版者 |
|
|
出版者 |
National Fisheries University |
|
言語 |
en |
| ISSN |
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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 |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00124678 |
| 情報源 |
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|
識別子タイプ |
Local |
|
|
関連識別子 |
fishu_k_65_267 |
| 関連サイト |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
https://agriknowledge.affrc.go.jp/RN/2010922178 |
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|
言語 |
en |
|
|
関連名称 |
agriknowledge |
fishu_k_65_267.pdf (1.4 MB)
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