UNITED STATES DEPARTMENT OF THE INTERIOR, Stewart L. Udall, Secretary 



FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner 



Bureau of Commercial Fisheries, Donald L. McKernan, Director 



BLOOD PROPERTIES OF PRESPAWNING 



AND POSTSPAWNING ANADROMOUS 



ALEWIVES {Alosa pseudoharengus) 



By Carl J. Sindermann and Donald F. Mairs 



FISHERY BULLETIN 183 



From Fishery Bulletin of the Fish and Wildlife Service 



VOLUME 61 



PUBLISHED BY UNITED STATES FISH AND WILDLIFE SERVICE • WASHINGTON • 1961 

 PRINTED BY UNITED STATES GOVERNMENT PRINTING OFFICE. WASHINGTON, D.C. 



For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C. 



Price 15 cents 



