Maturidade sexual de Callinectes danae e C. ornatus no estuário do rio Paraguaçu, Bahia, Brasil
DOI:
https://doi.org/10.20950/1678-2305/bip.2022.48.e635Resumo
Callinectes danae e C. ornatus são siris economicamente importantes em vários países, incluindo o Brasil. O presente estudo objetivou determinar o L50 dessas espécies com base em dados morfológicos, morfométricos e fisiológicos. Os valores estimados foram comparados estatisticamente e os resultados de estudos anteriores no Brasil foram analisados para verificar variações latitudinais nos tamanhos de maturidade sexual em diferentes regiões da costa brasileira. Os exemplares foram coletados mensalmente, de agosto de 2013 a julho de 2014, por meio de armadilhas do tipo gaiola. As estimativas de L50 em C. danae foram morfológica=55,80 mm, morfométrica=59,04 mm e fisiológica=60,41 mm para machos e morfológica=54,63 mm, morfométrica=55,33 mm e fisiológica=57,29 mm para fêmeas. Considerando C. ornatus, as estimativas foram: morfológica=42,63 mm, morfométrica=50,81 mm e fisiológica=43,95 mm para machos e morfológica=42,33 mm, morfométrica=42,75 mm e fisiológica=40,43 mm para fêmeas. Nossos resultados indicaram que os tamanhos mínimos de captura deveriam ser iguais a 61,00 mm para C. danae e 51,00 mm para C. ornatus e a malha das armadilhas usadas pelos pescadores ajustada para impedir a captura de animais imaturos.
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