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東シナ海中部海域における CPUE と漁獲物組成の変動について


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Title: 東シナ海中部海域における CPUE と漁獲物組成の変動について
Other Titles: Changes of CPUE and Composition of Catch in the middle East China Sea
Authors: 高木, 保昌 / 西田, 英明 / 兼原, 壽生 / 久野, 俊行 / 森井, 康宏
Authors (alternative): Takaki, Yasuaki / Nishida, Hideaki / Kanehara, Hisao / Kuno, Toshiyuki / Morii, Yasuhiro
Issue Date: Mar-1999
Publisher: 長崎大学水産学部
Citation: 長崎大学水産学部研究報告. 1999, 80, p.35-42
Abstract: The field survey of fish catch was conducted at three fixed area (in licensed fishing ground) in the middle East China Sea during 1989 to 1997 by Nagasaki-maru,training ship of Nagasaki University and we studied the catch per unit effort(CPUE) and the change of the catch species. The following results were obtained. At the area A (32°05′N.125°55′E) and B (32°05′N.126°25′E). the CPUE decreased rapidly, but slowly at the area C (32°05′N.126°55′E) in winter. Otherwise, in spring. the CPUE of all three areas decreased slowly. Considering the composition of catch, those decline tendency of CPUE were mainly effected by the catch of cutlassfish (Trichiurus japonicus) and croakers(Larimichthys polyactis).
URI: http://hdl.handle.net/10069/9234
ISSN: 05471427
Type: Journal Article
Text Version: publisher
Appears in Collections:No. 80

Citable URI : http://hdl.handle.net/10069/9234

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