Ommastrephes bartramii: a potential target for the squid fishery in the Southwest Atlantic
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Six exploratory cruises on board of the Japanese RV "Shinko Maru N°3" were carried out between 1997 and 2002 to obtain data on red squid (Ommastrephes bartramii)in the oceanic area of the SW Atlantic off Argentina and Uruguay (33° S-42° S/43° W-55° W). Between 10 and 32 jigging stations were performed each year during the night at depths of 80-200 m. Positive catches were registered in the whole area investigated with yields ranging between 0.01 and 2.03 kg/ (hour*line)and 0.001-2.26 individuals/(hour*line). Total catches oscilated between 1,426 kg in 2002 and 2,825 kg in 2000 and sea surface temperature at the fishing stations between 7.5° C and 24.5° C. Yields higher than 1 individual/ (hour*line)were registered at surface temperatures of 22° C-24° C. Size range of the squids caught was 10-40 cm mantle length (ML)for males and 12-49 cm ML for females, with a large number of individuals of both sexes immature. The fishing potential of the species in the reduced region surveyed yielded.....