The Estuario de la Bahía Blanca is a dynamic and ecologically rich estuary located along the southwestern Atlantic coast of Buenos Aires Province, Argentina, positioned at approximately 38°47′S, 62°18′W. This expansive tidal system forms one of the most significant coastal environments in the region, characterized by extensive intertidal zones, migrating sand banks, and a complex network of channels shaped by strong tidal forces. The estuary supports a productive artisanal fishery with deep roots in the local coastal communities, and its waters attract both recreational and commercial anglers drawn to the diverse marine fish species that inhabit its tidal flats and deeper channels.