Eastern Freshwater Cod are typically found in clear, flowing streams with rocky substrate and large amounts of in-stream cover such as boulders or large woody debris Such areas provide complex habitats which influence the quality and quantity of food and shelter.
Why is the Eastern Freshwater Cod threatened?
Historical over-fishing, including use of explosives
Water pollution from tailings dams at gold and tin mines in the Clarence system
Fluctuations in water levels, flows and water temperatures due to river regulation
Habitat degredation due to increased sedimentation, loss of aquatic vegetation
Removal of riparian vegetation reduces bank stability, reduces shading, increases water temperatures and reduces habitat quality
Predation and competition with introduced fish such as Banded Gunther (Amniataba percoides)
Illegal fishing practices remove breeding age adults