ARM COVERED 



Coverage during 1954 is shown in figure 1. The coverage varied both in 

 extent and intensity on different cruises, as is shoim in the summary by month 

 and area given in text table 1, The area betv/een Point Conception and Point 

 San Juanico (station lines 80-137) iras regularly surveyed. The area off cen- 

 tral California (station lines ($0)-60-77) v;as covered from April through 

 August, except for two stations on line 77, ^/^ich were occupied on all cruises 

 except December. The area off southern Baja California (station lines 140-157) 

 was occupied during the January and December cruises. 



Text table 1,- Coverage diiring 1954, summarized by month and area 



Central 



Total 



122 



417 



275 



Z23 



TZ 



1473 



Five vessels participated in survey criiises during 1954: the "Crest", 

 the "Horizon", the "Paolina T.", the "Spencer F. Baird", and the "E. W. 

 Scripps" , all operated by the Scripps Institution of Oceanography of the 

 University of California, Regular survey cruises vrere made at monthly inter- 

 vals, except in September and November. The vessels participating in each 

 cruise during 1954 are given in text table 2, 



The methods employed in taking plankton hauls during 1954 were identical 

 with those described in previous reports in this series. Refer particularly 

 to Ahlstrom 1953, pp. 4-6. 



