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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第60巻 第2/3号 >

北海道西岸沖のホタテ貝種苗生産を支える産卵及び浮遊幼生の輸送過程

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Title: 北海道西岸沖のホタテ貝種苗生産を支える産卵及び浮遊幼生の輸送過程
Other Titles: Spawning and Transport Process of Scallop Larvae Maintaining Seedling Production of Scallop off the West Coast of Hokkaid
Authors: 磯貝, 安洋1 Browse this author
磯田, 豊2 Browse this author →KAKEN DB
下野, 学3 Browse this author
小林, 直人4 Browse this author
工藤, 勲5 Browse this author →KAKEN DB
干場, 康博6 Browse this author
Authors(alt): Isogai, Yasuhiro1
Isoda, Yutaka2
Shimono, Manabu3
Kobayashi, Naoto4
Kudo, Isao5
Hoshiba, Yasuhiro6
Keywords: west coast of Hokkaido
scallop
seedling production
ADCP
CTD
backtrack calculation
Issue Date: Dec-2010
Publisher: 北海道大学大学院水産科学研究院
Journal Title: 北海道大学水産科学研究彙報
Journal Title(alt): Bulletin of Fisheries Sciences, Hokkaido University
Volume: 60
Issue: 2/3
Start Page: 23
End Page: 37
Abstract: Shelf area off the west coast of Hokkaido(Ishikari bay,Rumoi shelf and Teshio shelf)is one of the major seedling productions of scallop. However,since there have been no surveys of wild scallop,natural spawning ground maintaining the seedling production has not been resolved still now. To improve our understanding of immature scallop,a large number of larvae collected in the seedling production area were numerically backtracked to take into account the advection,which was roughly inferred from the analysis for mooring current,ADCP,GEK and hydrographic data. Northward flow mainly affected by the Tsushima Warm Current and estuarine flow from Ishikari River is characterized by intense shelf-edge flow and weak flow with a large periodical variation on the shelf. The model result suggested,at least,two major spawning grounds. One is somewhere about southern area outside of the shelf(south of Syakotan peninsula),and another is the southern end of Rumoi shelf where there may be spawning from scallop of the aquaculture.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/44758
Appears in Collections:北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第60巻 第2/3号

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