AREA COVERED 



The stations occupied during 1952 are shown in figure 1. Stations occu- 

 pied on only 1 or 2 cruises are shown as open circles; stations occupied on 3 

 or more cruises are indicated by black dots. Survey cruises were made monthly 

 in 1952, except in December. The stations occupied on each cruise made during 

 the year can be determined from table I (Record of standardized haul factors). 



Coverage during 1952 is summarized by area in text table 1. The coverage 

 varied in intensity on different cruises, being most intense in the sardine 

 spawning areas during the main spawning season (March through June). The cover- 

 age north of Point Conception (station lines 40-77) was not as thorough as in 

 1950 or 1951. The coverage between Point Conception and Point San Juanico 

 (station lines 80-137) was more intensive than during any previous season. The 

 area off southern Baja California was visited only once (February). A compari- 

 son of coverage in different parts of the survey area in 1950, 1951 and 1952 

 is given in text table 2. 



Text table 1.- Coverage during 1952, summarized by month and area 



Area north of So, Calif. 



Pt. Conception and adj. Central Southern Total 



Cruise (station lines Baja Calif. Baja Calif. Baja Calif. all 



Month number 77 and above) (80-107) (110-137) (140 & below) areas 



January 33^5201^/ 



47 47 

 February 34 5202 47 48 

 March 35 5203 45 46 



Late March 35 5203 63 



18 



68 722/ 



23 93.,, 71 



34 116^ 72 



46 70 63. . 



15 39 45^ 



September 41 5209 21 39 34 



October 42 5210 18 36 34 



November 43 5211 18 38 35 

 December - - 



Total 193 638 630 14 1475 



l/ Cruises numbered in order since beginning of research program in 1949. 



2/ Revised numbering system for cruises. First two digits indicate year; the 



last two indicate month during which cruise took place. 

 2/ Includes extra occupancies listed in supplement to table I. 



3 - 



