A review of the Japanese longline fishery for tunas and billfishes in the Eastern Pacific Ocean, 1967-1970

Shingu, Chiomi and Tomlinson, Patrick K. and Peterson, Clifford L. (1974) A review of the Japanese longline fishery for tunas and billfishes in the Eastern Pacific Ocean, 1967-1970. Inter-American Tropical Tuna Commission Bulletin, 16(2), pp. 65-230.

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Abstract

ENGLISH: This report deals with the Japanese longline fishery for tunas and billfishes from 1967 through 1970, extending the studies made by Kume and Joseph (1969a, 1969b). The distribution of effort and catch is discussed and evaluated, and the changes in apparent abundance are examined. An analysis is made of the sexual maturity and size composition of the fish, and a brief comparison of the size composition of the catches from the longline and the surface fisheries is included. SPANISH: Este informe analiza la pesca palangrera japonesa de atunes y peces espada desde 1967 a 1970, ampliando los estudios hechos por Kume y Joseph (1969a, 1969b). Se discute y avalúa la distribución del esfuerzo y la captura, y los cambios en la abundancia aparente. Se hace un análisis de la madurez sexual y de la composición de talla de los peces y una breve comparación entre la composición de talla de los peces capturados en la pesca palangrera y la epípelágíca. (PDF contains 166 pages.)

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