A three kilometre-long by four metre-wide channel has been constructed in the Berri evaporation basin, part of Katfish Reach to safeguard a nationally-endangered native fish species. There are only seven known populations of the small freshwater fish, Murray hardyhead known in the in the Murray Darling Basin, including in the Berri evaporation basin.
The channel was built as part of the federal and state-funded Riverine Recovery Project (RRP), facilitated through the Department of Environment, Water and Natural Resources (DEWNR). This work has provided an important refuge for the species during drought, as they are able to move into the channel when the basin water levels reduce. The Murray hardyhead is a small, short-lived species and it was crucial to provide a good habitat during the breeding season to ensure this important fish is preserved.