南極収束線の緯度変化とヒゲ鯨のCPUEに関する考察

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概要

• 論文の詳細を見る

• According to the data in the seasons of 1962/63 to 1965/66 at least, the main sei whaling grounds generally existed in the sea region between the Antarctic Convergence and the Subtropical Convergence. It seems that when the Antarctic Convergence shifted further south than other seasons, the catch per unit effort of sei whale declined, and in the season of inverse phenomena; it increased. Accordingly, if such a tendency is evident as a rule, the stock assessment based on the catch data must be corrected by the rate of exploitation caused by the latitudinal fluctuation of the Antarctic Convergence.

• 公益社団法人 日本水産学会の論文

著者

• 奈須 敬二

  遠洋水産研究所

• 町田 三郎

  鯨類研究所

関連論文

• 南極収束線の緯度変化とヒゲ鯨のCPUEに関する考察

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