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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第65巻 第1号 >

鳥取県沖合底曳き網 (かけまわし) のハタハタに対する選択性マスターカーブの推定

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Title: 鳥取県沖合底曳き網 (かけまわし) のハタハタに対する選択性マスターカーブの推定
Other Titles: Estimation of selectivity curve of Danish seine for Japanese sandfish Arctoscopus japonicus off Tottori Prefecture
Authors: 楠元, 彩香1 Browse this author
藤森, 康澄2 Browse this author →KAKEN DB
倉長, 亮二3 Browse this author
志村, 健4 Browse this author
Authors(alt): Kusumoto, Ayaka1
Fujimori, Yasuzumi2
Kuranaga, Ryoji3
Shimura, Tsuyoshi4
Keywords: Sandfish
Mesh selectivity
Master curve
Issue Date: 16-Mar-2015
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
Volume: 65
Issue: 1
Start Page: 39
End Page: 45
Abstract: Bycatch of immature Japanese sandfish Arctoscopus japonicas in Danish seine fishery is an issue in Tottori Prefecture. To manage the size of fish caught, mesh selectivity should be understood. This study aims to estimate a master curve of selectivity and to evaluate an adequate codend mesh size of Danish seine in this area. The sea experiment was conducted using three mesh sizes (43.0, 34.2, 30.0 mm) for codend with cover net under the same condition of the commercial fishery. The estimated master curves are compared in total of four ways which consist of two kinds of data sets (Whole set and AIC min) and two kinds of estimation methods (Separate and Simultaneous). From this result, it was concluded that the 43.0 mm mesh size was the most effective to decreasing the catch of immature sandfish preventing a decrease in the amount of mature fish.
Type: bulletin (article)
Appears in Collections:北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第65巻 第1号

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