Rio Caeté is a significant river system in the northeastern region of Pará, Brazil, draining into a richly productive estuary near the town of Bragança. The Bragança/Caeté estuary is one of the most ecologically diverse coastal systems along Brazil's northern coast, where the interplay of freshwater river discharge and Atlantic marine influence creates a dynamic and highly productive fishery. The estuary is strongly shaped by seasonal rainfall patterns, with the wet season driving freshwater discharge that pushes salinity gradients seaward, and the dry season allowing marine waters to penetrate deeper into the system. This tidal and seasonal fluctuation supports an extraordinary diversity of fish species — a mix of Amazonian freshwater fauna, estuarine residents, and wide-ranging marine visitors — making Rio Caeté a compelling destination for anglers interested in tropical inshore and estuarine fishing.