Population parameters of 'corvina' (Plagioscion squamosissimus) in the Barra Bonita Reservoir, Brazil
Population parameters of 'corvina' (Plagioscion squamosissimus) in the Barra Bonita Reservoir, Brazil
Estimates for the growth parameters (L sub( infinity ) and K) mortality coefficients (Z,M and F) and exploitation rate (E) for the sciaenid Plagioscion squamosissimus are presented. The following results were obtained: 1) for male: L sub( arrow right )=44.2 cm, K=0.30 yr super(1), Z=0.82 yr super(1), M=0.66 yr super(1), F=0.16 yr super(1), and E=0.20; and 2) for females: L sub( arrow right )=68.4, K=0.22 yr super(1), Z=0.91 yr super(1), M=0.47 yr super(1), F=0.44 yr super(1) and E=0.49. Females are more heavily fished than males. Artisanal fishing carried out with gillnets, is mainly directed toward the young section of the population and individuals reproducing for the first time.
Barra Bonita, Fisheries, Growth, Size distribution, Exploitation, Population structure, Reservoir fisheries, Plagioscion squamosissimus, Population structure, Growth, Mortality, Size distribution, Exploitation, Stock assessment, Reservoir fisheries, Barra Bonita, Brazil, Plagioscion squamosissimus, Stock assessment, Mortality, Brazil, jel: jel:Q00
Barra Bonita, Fisheries, Growth, Size distribution, Exploitation, Population structure, Reservoir fisheries, Plagioscion squamosissimus, Population structure, Growth, Mortality, Size distribution, Exploitation, Stock assessment, Reservoir fisheries, Barra Bonita, Brazil, Plagioscion squamosissimus, Stock assessment, Mortality, Brazil, jel: jel:Q00
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