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.
Reservoir fisheries, Plagioscion squamosissimus, Barra Bonita, Population structure, Growth, Mortality, Size distribution, Exploitation, Stock assessment, Reservoir fisheries, Barra Bonita, Brazil, Plagioscion squamosissimus, Fisheries, Stock assessment, Growth, Size distribution, Mortality, Exploitation, Population structure, Brazil, jel: jel:Q00
Reservoir fisheries, Plagioscion squamosissimus, Barra Bonita, Population structure, Growth, Mortality, Size distribution, Exploitation, Stock assessment, Reservoir fisheries, Barra Bonita, Brazil, Plagioscion squamosissimus, Fisheries, Stock assessment, Growth, Size distribution, Mortality, Exploitation, Population structure, Brazil, jel: jel:Q00
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