United States Department of the Interior, Fred A. Seaton, Secretary 

 Fish and Wildlife Service, John L. Farley, Director 



RELATIVE AREAL ZOOPLANKTON ABUNDANCE 

 OFF THE PACIFIC COAST 



by 



James R. Thrailkill 

 Fishery Research Biologist 



Special Scientific Report- -Fisheries No. 188 



Washington, D. C. 

 November 1956 



