ABSTRACT 



Basic data on volumes of zooplankton off the Pacific 

 coast in 1958 are given, together with haul data for all 

 plankton hauls taken on survey cruises of the California 

 Cooperative Oceanic Fisheries Investigations. Plankton 

 volumes over the entire survey area averaged less than 

 one-third as much as during 1951-56. Distribution charts 

 showing relative areal zooplankton abundance by month 

 are included. 



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