Its history is a sad one for an angler: drainage from the old Avoca copper mines scarred the main river, and its trout fishing remains limited because of it. The better wild-trout water is upstream, on the Avonmore and Avonbeg headwaters before they meet.
Mining pollution has left the lower main river poor for fly life and trout; what hatches there are run to hardy stoneflies, a few olives and summer sedges, with terrestrials important along the wooded banks.
- Mixed

