The Fishes of Champaign County

Inasmuch as there exist among the small stream systems of this county faunal differences comparable to those found among large stream systems, not only in Illinois but elsewhere as well, the intensive study of this restricted area has made it possible to formulate in a more precise manner some of the general conclusions previously reached by other workers on the distribution and abundance of fishes. The use of quantitative methods of collecting has made it possible also to arrive at new conclusions based on such data as may have passed unnoticed in a less detailed study or in streams too large to apply such methods.