FARMINGTON – It has been decades since the last river drive took place on Maine waterways, but many of Maine’s rivers and streams still show the wounds inflicted years ago by log and pulpwood drives.

The damage, which includes widening of stream reaches, excessive sediment migration and destruction of pools, affects all forms of life in the aquatic community from plants to insects.

Regional Fisheries Biologist Forrest Bonney will speak at a meeting of the Western Maine Audubon Society at 7 p.m. Wednesday, Sept. 21, in Room C23 of Roberts Learning Center, University of Maine at Farmington.

Bonney, of the Maine Department of Inland Fisheries and Wildlife, is a leading biologist on brook trout and the author of a forthcoming book titled “Maine Brook Trout: Biology, Conservation, Management,” has been in charge of the department’s stream restoration program since its inception.

The goal of the program is to restore the conditions in streams that provided optimal habitat for brook trout survival and reproduction.

Bonney spoke to the Western Maine Audubon Society a few years ago about the goals of stream restoration and the techniques employed in it, and at this program he will update the group on two major projects – one in the Cupsuptic River and the other in South Bog Stream – that he has supervised from Western Maine.

The program is free and open to the public.