The Ausable River is one of the most biologically diverse river basins in Canada. The river supports insect communities of caddis flies, mayflies and stoneflies, all of which makes a great meal for Trout enjoy. Brown Trout are the most abundant of all trout in the Ausable and range in size from 9 - 18 inches. Other species include Rainbow Trout, Brook Trout, and Steelheads.
The Ausable River is great for both the fly and spin and bait fisherman. Some sections are designated 'catch and release waters' but, as always, the challenge lies in finding and bringing in the fish. It is important to note that the farmlands and many other lands on the riverbanks lie in private hands and that to fish there without permission is to trespass.