This is a survey that EcoAnalysts Inc., under contract with the Grand River Waterway, prepared of Unionoid Mussels at 5 different dredge sites on the Grand River.
Matthew MacGregor coordinated the project for King and MacGregor, Inc. Dan Hibma coordinated the project for Grand River Waterway. EcoAnalysts, Inc. assisted with the field effort.
Image was taken from pg. 79 of the attatched PDF.