Nine native and four introduced fish species
are fond within the Katfish Reach area, including both
large and
small fish species.
Two of the native species, the Murray cod
and Murray hardyhead, have conservation significance. A third, the
silver perch, is protected under the South Australian Fisheries Act
1982.
Other native species in the reach include
bony herring, Murray rainbowfish, Australian smelt and flathead gudgeon.