“…The Manguruyú Zungaro jahu (Ihering, 1898) is one of the largest neotropical fishes, exceeding 160 cm in length (Mateus & Penha, 2007), and is endemic to the La Plata Basin (Argentina, Bolivia, Brazil, Uruguay, and Paraguay) (Boni et al, 2011). One century ago, catches of up to 162 cm were recorded in the Río de la Plata Estuary (Southern limit of the La Plata Basin) (Donagh, 1937), but from the 1970 s onwards, the adult specimens disappeared completely from the lower basin (Scarabotti et al, 2021). Currently, the landings are limited to the subtropical and tropical areas of the La Plata Basin, mainly in the upper end of the middle Paraná, and in the Paraguay sub‐basin (Baigún et al, 2003; Scarabotti et al, 2021).…”