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Variations in size and sex ratio of king mackerel, Scomberomorus cavalla , off Louisiana, 1977-85 Trent, L.; Fable Jr., W.A.; Russell, S.J.; Bane, G.W.; Palko, B.J. (1987). Variations in size and sex ratio of king mackerel, Scomberomorus cavalla , off Louisiana, 1977-85. Mar. Fish. Rev. 49(2): 91-97 In: Marine Fisheries Review. National Oceanic and Atmospheric Administration (NOAA): Seattle, Wash.. ISSN 0090-1830; e-ISSN 1939-2044

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Beschikbaar in	Auteurs
VLIZ: Open access 277827 [ download pdf ]

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Trefwoorden

Fisheries > Finfish fisheries > Mackerel fisheries Population characteristics > Population structure Population characteristics > Population structure > Sex ratio Population characteristics > Population structure > Size distribution Stock assessment Scomberomorus cavalla (Cuvier, 1829) [WoRMS] Marien/Kust

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Auteurs		Top
Trent, L. Fable Jr., W.A. Russell, S.J.	Bane, G.W. Palko, B.J.

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Abstract

Data from over 27,000 king mackerel, Scomberomorus cavalla, collected from Grand Isle, Louisiana, during 1977-85 were analyzed to evaluate temporal variations in size and sex compositions. The fish were caught by recreational and commercial hook-and-line fishermen. Groups of king mackerel from Louisiana were composed of a greater portion of large fish than were populations from other areas in the southeastern United States with the possible exception of South Carolina and Georgia. Large (> 120 cm fork length) king mackerel were caught off Louisiana throughout the year. For both males and females, catches were composed of the smallest fish in April through October and the largest fish between November and March. Females dominated catches in most months and comprised a greater portion of the recreational than the commercial landings. Female percentage was usually lower in the warmer than in the colder months. In general, female percentage increased with an increase in fish size.

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