Fishing Five Great Lakes

Traces the changing pattern of sport and commercial fishing on the Great Lakes which resulted from population increases in the area and from man-made changes in the Lakes. Indicates pollution, shipping, introduction of new species of fish, and over fishing as principal factors reducing both sport and commercial fishing on the Lakes. Traces the changes in species occurring in the Lakes and means used to improve the existing fish population. Places emphasis upon the continuing values still received from Great Lakes fisheries and shows fishing activities as they occur throughout the year.