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  3. 瀬戸内海区水産研究所

漂流ブイ調査によって推定した瀬戸内海伊予灘におけるカタクチイワシ仔魚の微細分布と移動

https://fra.repo.nii.ac.jp/records/2003202
https://fra.repo.nii.ac.jp/records/2003202
ad38008f-192f-4acc-978f-3a24b2718910
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2024-04-25
タイトル
タイトル 漂流ブイ調査によって推定した瀬戸内海伊予灘におけるカタクチイワシ仔魚の微細分布と移動
言語 ja
タイトル
タイトル Small Scale Distribution and Transport of the Japanese Anchovy, Engraulis japonica, Larvae determined from a Free-Drifting Buoy Survey in Iyo-Nada, Seto Inland Sea
言語 en
言語
言語 jpn
キーワード
言語 en
主題Scheme Other
主題 Engraulis japonica; larvae; free-drifting buoy; distribution; Seto Inland Sea
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 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 福田, 雅明

× 福田, 雅明

WEKO 1867
e-Rad_Researcher 30371876

en Fukuda, Masaaki

ja 福田, 雅明

ja-Kana フクダ, マサアキ

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花村, 幸生

× 花村, 幸生

WEKO 1938
e-Rad_Researcher 50371951

en Hanamura, Yukio

ja 花村, 幸生

ja-Kana ハナムラ, ユキオ

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抄録
内容記述タイプ Abstract
内容記述 The small scale distribution and transport of the Japanese anchovy (Engraulis japonica) larvae was studied in Iyo-Nada, Seto Inland Sea, by tracking a free-drifting buoy attached with a radar reflector over a 48 hour period and the surface abundance of anchovy larvae monitored using a fish pump. The free-drifting buoy was released onto the surface water at midnight on 7 July 1993 and it moved counter-clockwise being transported westward along the edge of a cold water mass formed at the center of the research area. The traveling distance of the buoy over the 48 hour period totaled about 50 km. The anchovy larvae were collected by 5 minutes pumpings at 12 positions at 6 hour intervals on a crossline which was established in relation to the position of the free-drifting buoy. The total number of larvae caught in the daytime was larger in number than at night throughout the twodays. The mean standard length of larvae tended to decrease during the first 24 hours but then increased in the later 24 hours. The continuous samplings on the closslines revealed that the abundance of larval anchovy in the daytime were higher than at night, and noticeably high aggregations were encountered at two or more stations in the daytime, in contrast consistently low densities at all sampling points were found during the night series. This possibly resulted from the daytime aggregation and the night-time dispersion rather than any vertical migration.
言語 en
bibliographic_information ja : 南西海区水産研究所研究報告
en : Bulletin of Nansei National Fisheries Research Instituite

巻 28, p. 9-20, ページ数 12, 発行日 1995-03
出版者
出版者 南西海区水産研究所
言語 ja
出版者
出版者 Nansei National Fisheries Research Instituite
言語 en
item_10002_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0388-841X
item_10002_source_id_11
収録物識別子タイプ NCID
収録物識別子 AN00181988
情報源
識別子タイプ Local
関連識別子 nnf_k_28_9
関連サイト
識別子タイプ URI
関連識別子 https://agriknowledge.affrc.go.jp/RN/2010510440
言語 ja
関連名称 日本農学文献記事索引(agriknowledge)
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