(Sutherlin, OR) -- The Oregon Department of Fish and Wildlife is concerned after common carp was found in the Copper Creek Reservoir near Sutherlin. Biologists used electrofishing and found 14 adult carp, most of which were pregnant and ranged in age from two to eight years old. Carp are native to Europe and Asia. They can have detrimental ecological impacts on the North and mainstream Umpqua rivers. Fishermen who catch carp are asked to report the location and size to the Umpqua Fish District Biologist.