Spatial and temporal CPUE [number of fish pen 100 hooks] trends and stock unit inferred from them for the Pacific swordfish [Xiphias gladius] caught by the Japanese tuna longline fishery.
1991
Nishizaki O.S. | Shimizu M.
The spatial and temporal trends of CPUE (No. of fish per 100 hooks) of the swordfish caught by the Japanese tuna longline fishery in the Pacific Ocean were described for the 1952-1985 period. The development of this fishery was summarized, CPUE values were used as a measure of relative abundance, and four areas of high CPUE values were described: a) off Japan, b) off Baja California Peninsula, c) off the western coast of South America, and d) off the eastern Australian coast and north of New Zealand. The possible use of this four areas in the discrimination of the Pacific Ocean swordfish stocks was discussed.
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