Fishers’ ecological knowledge (FEK) has contributed to a better understanding about the reproduction of fishery resources, especially where biological data are scarce or unavailable. We analyzed FEK on the reproduction of five fishery resources in the Paranaguá estuarine complex and adjacent coastal area, Brazil, including fishes (Genidens barbus, Centropomus parallelus, Chaetodipterus faber, Pseudobatos sp.) and shrimp (Litopenaeus schmitti). We also sought to compare FEK with biological data and investigate which characteristics (age, fish evisceration and fishers’ location) influence fishers' knowledge. We interviewed 132 artisanal fishers. FEK indicated reproductive peaks in the spring and summer for the fish species and in late winter and early spring for the shrimp. The maturation sizes according to FEK did not differ from sizes at first maturity (L₅₀) as reported by biological studies for G. barbus and L. schmitti. Fishers’ residence sites and fish evisceration influenced more their knowledge related to species reproduction than age. Fishers showed a detailed ecological knowledge about some reproductive aspects, including size at first maturity of females, site of occurrence and reproductive peaks. Furthermore, fishers were able to identify sexual dimorphism, parental care and ovoviviparity. These results can be applied to improve fisheries management in the context of data poor fisheries.

渔民的生态知识（FEK）有助于人们更好地了解渔业资源的繁殖，尤其是在缺乏或缺乏生物学数据的地方。我们分析了FEK对巴西Paranaguá河口综合体和邻近沿海地区的五种渔业资源的繁殖情况，包括鱼类（Genidens barbus，Centropomus parallelus，Chaetodipterus faber，Pseudobatos sp。）和虾（Litopenaeus schmitti））。我们还试图将FEK与生物学数据进行比较，并调查哪些特征（年龄，鱼类内脏和渔民的位置）会影响渔民的知识。我们采访了132个手工捕鱼者。FEK表示鱼类在春季和夏季以及虾的冬末和早春生殖高峰。正如F. barbus和L. schmitti的生物学研究所报道的，根据FEK得出的成熟度​​大小与首次成熟时的大小（L ₅₀）没有区别。。渔民的居住地和鱼类内脏对他们与物种繁殖有关的知识的影响比年龄更大。渔民展示了有关某些生殖方面的详细生态知识，包括雌性第一次成熟时的体型，发生部位和生殖高峰。此外，渔民能够确定性二态性，父母关怀和卵胎性。这些结果可用于在数据不佳的渔业背景下改善渔业管理。