Abstract
Length at first sexual maturity of economically important fishes in the Brazilian Northeast Coast
Highlights
Samples from the following species were captured from 2013 to 2019, through artisanal fishery brought to the municipality of Raposa, in the state of Maranhão, Brazil (Figure 1): Genyatremus luteus (478 individuals - 182M; 296F), Micropogonias furnieri (190 individuals - 107M; 83F), Oligoplites palometa (172 individuals - 97M; 75F), Nebris microps
The determination of young and adult specimens was done by verifying the gonad sexual maturity level according to the stages suggested by BrownPeterson et al (2011) and Lowerre-Barbieri et al (2011)
The mean fish length at first sexual maturity (L50) was estimated from the accumulated curve of the frequencies of occurrence of adult specimens per length class fitted to a logistic function
Summary
Samples from the following species were captured from 2013 to 2019, through artisanal fishery brought to the municipality of Raposa, in the state of Maranhão, Brazil (Figure 1): Genyatremus luteus (478 individuals - 182M; 296F), Micropogonias furnieri (190 individuals - 107M; 83F), Oligoplites palometa (172 individuals - 97M; 75F), Nebris microps - 36M; 59F), Peprilus crenulatus (84 individuals - 43M; 41F), Trichiurus lepturus (146 individuals - 43M; 103F), Selene setapinnis (102 individuals - 62M; 40F), Bagre bagre (123 individuals - 55M; 68F), Lutjanus synagris (359 individuals - 149M; 210F) and Mugil curema (75 individuals - 29M; 46F). The determination of young and adult specimens was done by verifying the gonad sexual maturity level according to the stages suggested by BrownPeterson et al (2011) and Lowerre-Barbieri et al (2011).
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