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Title: 噴火湾およびその沖合におけるアカガレイの分布・移動について
Other Titles: Distribution and Migration of Hippoglossoides dubius in Funka Bay and Its Offshore Waters, Hokkaido
Authors: 横山, 信一1 Browse this author
前田, 辰昭2 Browse this author →KAKEN DB
中谷, 敏邦3 Browse this author →KAKEN DB
高橋, 豊美4 Browse this author →KAKEN DB
松島, 寛治5 Browse this author
Authors(alt): Yokoyama, Shin-ichi1
Maeda, Tatsuaki2
Nakatani, Toshikuni3
Takahashi, Toyomi4
Matsushima, Hiroharu5
Issue Date: Oct-1990
Publisher: 水産海洋学会
Journal Title: 水産海洋研究
Journal Title(alt): Bulletin of the Japanese Society of Fisheries Oceanography
Volume: 54
Issue: 4
Start Page: 373
End Page: 380
Abstract: In order to investigate the relation between distribution and migration of Hippoglossoides dubius and water temperature in Funka Bay and its offshore waters at a depth less than 200m, sampling surveys and tagging experiments were conducted from April 1984 to November 1988. In February, H. dubius were found chiefly in southern part of the bay (less than 78m depth). In this period, Oyashio Current entered the bay and the bottom water of 2.0~4.0℃ temperature prevailed with small variations among stations. From May to Ju1y, they concentrated in the muddy and deep area (more than 80m depth) in the bay, although the bottom water temperature remained uncharged except for high temperature (8.1℃) in the northeastern part of the bay in July. Between August and November, bottom water temperature in the northeastern part of the bay mouth and the coastal zone in the bay were as high as 8.1~12.3℃, whereas that in the deepest area of the bay was 4.0~9.0℃, where H. dubius concentrated. A total of 2655 H. dubius were tagged and released. Ninety-three tegged H. dubius were recaptured mainly in the bay and 79 tagged fish of them were recaptured within a year after release. From July to September they migrated southward and that northward after October. Seasonal change in the distribution and the results of tagging experiments suggested that H. dubius inhabited in the bay all the year round.
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高橋 豊美

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