UNITED STATES DEPARTMENT OF THE INTERIOR

Stewart L. Udall, Secretary

John A. Carver, Jr., Under Secretary

Stanley A. Cain, Assistant Secretary for Fish and Wildlife and Parks
FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner
BUREAU OF COMMERCIAL FISHERIES, Donald L. McKernan, Director

Comparative Study of Juvenile
American Shad Populations by
Fin Ray and Scute Counts

By

PAUL R. NICHOLS

United States Fish and Wildlife Service
Special Scientific Report-- Fisheries No. 525

Washington, D.C.
February 1966