Tolerância e crescimento de juvenis do robalo-flecha (Centropomus undecimalis) expostos a diferentes salinidades

Centropomus undecimalis (popularly known as common snook) is a very important resource for commercial and recreational fishing. This study aimed to evaluate quantitative indicators of the reproductive biology of C. undecimalis in the Parnaíba Delta Environmental Protection Area (Brazil). The parameters were analyzed at the different stages of the reproductive cycle of 155 specimens, 135 (87.10%) males and 20 (12.90%) females. The results showed positive allometric growth for females and negative allometric growth for males. The sex ratio was 1:6.75 (females: males). The first estimated maturation (L50) was 57.21 cm for females and 54.55 cm for males. The species spawns multiple times, with oocytes maturing in batches, being released at intervals. According to the results of this study, it was possible to notice that reproductive peaks occurred in February, May, and November. Therefore, it is recommended that the capture of this species be avoided during these months.

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Quantitative indicators of the reproductive biology of adult specimens of Centropomus undecimalis (Teleost: Centropomidae) obtained from commercial fishermen in the Parnaíba Delta Environmental Protection Area, north coast of Brazil

Nascimento

Diniz

Cruz

et al. 2022

Bol. Inst. Pesca

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Tolerância e crescimento de juvenis do robalo-flecha (Centropomus undecimalis) expostos a diferentes salinidades

Abstract: Tolerância e crescimento de juvenis do robalo-flecha (Centropomus undecimalis) expostos a diferentes salinidades Tolerance and growth of juveniles of the common snook (Centropomus undecimalis) exposed to different salinities

Cited by 1 publication

References 15 publications

Quantitative indicators of the reproductive biology of adult specimens of Centropomus undecimalis (Teleost: Centropomidae) obtained from commercial fishermen in the Parnaíba Delta Environmental Protection Area, north coast of Brazil

Quantitative indicators of the reproductive biology of adult specimens of Centropomus undecimalis (Teleost: Centropomidae) obtained from commercial fishermen in the Parnaíba Delta Environmental Protection Area, north coast of Brazil

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