These investigations are part of the California Cooperative Oceanic 

 Fisheries Investigations, a program sponsored by the Marine Research Com- 

 mittee, and carried out by the Scripps Institution of Oceanography of the 

 University of California, the Bureau of Marine Fisheries of the California 

 Department of Fish and Game, the Hopkins Marine Station of Stanford University, 

 the California Academy of Sciences and the South Pacific Fishery Investigations 

 of the U. S. Fish and Wildlife Service. Originally, the cooperative program was 

 known as the California Cooperative Sardine Research Program, but the name 

 was changed when the investigations were expanded to include fishes other than 

 the Pacific sardine. 



The plankton samples are used in studying the early life histories of 

 fishes, including the distribution and abundance of spawning and the rate of larval 

 survival. Information on distribution and abundance of eggs and/or larvae of six 

 species of fishes: Pacific sardine, northern anchovy, jack mackerel, Pacific 

 mackerel, hake, and rockfish (Sebastodes spp.) are given in a yearly series of 

 reports in Special Scientific Report- -Fisheries. These reports parallel those on 

 plankton volumes . 



U.S. Fish and Wildlife Service 



1952. Zooplankton volumes off the Pacific coast, 1951. 

 U.S. Dept. Interior, Fish and Wildlife Service, 

 Spec. Sci. Rep. --Fisheries No. 73, 37pp. 



1953. Zooplankton volumes off the Pacific coast, 1952. 

 U.S. Dept. Interior, Fish and Wildlife Service, 

 Spec. Sci. Rept. --Fisheries, No. 100, 41pp. 



1954. Zooplankton volumes off the Pacific coast, 1949-50. 

 U.S. Dept. Interior, Fish and Wildlife Service, 

 Spec. Sci. Rept. --Fisheries, No. 125, 54 pp. 



1954. Zooplankton volumes off the Pacific coast, 1953. 

 U.S. Dept. of Interior, Fish and Wildlife Service 

 Spec. Sci. Rept. --Fisheries, No. 132, 38 pp. 



1955. Zooplankton volumes off the Pacific coast, 1954. 

 U.S. Dept. Interior, Fish and Wildlife Service, 

 Spec. Sci. Rept. --Fisheries, No. 161, 35 pp. 



1956. Zooplankton volumes off the Pacific coast, 1955. 

 U.S. Dept. Interior, Fish and Wildlife Service, 

 Spec. Sci. Rept. --Fisheries, No. 177, 31pp. 



