Abstract:The piramutaba (Brachyplatystoma vaillantii) is among the two most important catfish species in the Amazon, mainly for exportation. Studies by several authors suggest that the piramutaba is composed by a single population that migrates seasonally, using diferent areas for reproduction, feeding/growth in the Estuary-Amazonas-Solimões (EAS) System. In this manner, the piramutaba is captured by both, artisanal fishing that occurs along the EAS system, and to the industrial fishing that occurs only in estuary toge… Show more
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