Seasonal rainfall influences reproduction and recruitment of tropical penaeid shrimps: Implications to fisheries management

Abstract Here, we present results from a study conducted in two major shrimp fishing grounds the Northeastern Brazil Marine Ecoregion (NBME) that determined reproductive dynamics of penaeid shrimps Xiphopenaeus kroyeri and Penaeus schmitti . We aimed to verify if current closed season is appropriate untangle environmental drivers control their dynamics. The periods recruitment reproduction both species overlap significantly, with spawning peak taking place dry wet season. process seem be indirectly controlled by onset rainfall season, which triggers an increase primary productivity. This indirect effect also appears affect growth increments positively. Our suggest evolved recruit spawn at as mechanisms maximize fitness. They highlight possible negative influence climate change tropical stocks local regulations must adjusted better protect them overfishing. Therefore, multiple possibilities (CFS) addressed decision‐makers reinforce parameters effects changes should considered when planning management measures.