Odontesthes bonariensis

Odontesthes bonariensis is a species of Neotropical silverside, an euryhaline fish native to fresh, brackish and salt water in south-central and southeastern South America, but also introduced elsewhere.[1][2] It is often known by the common name Argentinian silverside or pejerrey (the latter is of Spanish origin),[3] but it is not the only species of silverside in Argentina and pejerrey is also used for many other silversides.[4][5] It is a commercially important species and the target of major fisheries.[3][6]

O. bonariensis resembles the other species in the genus Odontesthes,[7] but it is larger, generally reaching up to 50 cm (1.6 ft) in total length,[8] and exceptionally as much as 82 cm (2.7 ft) long and 5.2 kg (11 lb 7 oz) in weight (reports of even larger are unconfirmed and questionable).[9]