Murray cod have been recorded along the Severn from 2008 to 2024, in surveys above and below the dam, and NSW stocked cod in 2019/20.
Golden perch have been recorded too and were stocked in 2020/21 and 2023/24.
Freshwater catfish and
silver perch appear in the survey records, and a
redfin was recorded below the dam in 2005.
Western carp gudgeon and Australian smelt are the small fish on the records, which is the size a perch fly should copy.