ranked 7th, 8th, and 9th in abundance, with Triphoturus mexicanus 

 ranking 1st in occurrence, reflecting its widespread distribution 

 in the southern region of the CalCOFI pattern. The 10th ranked 

 taxon was the sardine, Sardinops sagax , which ranked 19th in 

 occurrence. These 10 top-ranking taxa contributed 85.1% of all 

 larvae taken during 1957. The remaining 14.9% is represented by 

 137 taxa plus the unidentified and disintegrated categories. Of 

 the 10 taxa, 5 were midwater species, 3 were coastal pelagic 

 species, and 2 were coastal demersal species or generic 

 groupings. 



EXPLANATION OF TABLES 



Table 1 - This table lists by cruise the pertinent station and 

 tow data for 1957, the volume of water filtered and 

 standard haul factor for each tow, the percent of 

 sample sorted, and the total numbers of fish eggs and 

 larvae. CalCOFI cruises are designated by four digits; 

 the first two indicate the year and the second two the 

 month. Within each cruise the data are listed in order 

 of increasing line and station number (southerly and 

 seaward directions) ; the order of station occupancy is 

 shown on the station charts (Figures 2-13) . Stations 

 are designated by two groups of digits; the first set 

 indicates the line and decimal fraction and the second 

 set indicates the station on the line. Decimal 

 fractions were not used in 1957. Time is listed as 

 Pacific Standard Time at the start of each tow in 24- 

 hour designation. Methods for determining tow depth, 

 volume of water strained, standard haul factor, and 

 percent sorted were described in the methods section. 

 The values for total fish eggs and larvae represent raw 

 counts (unadjusted for percent sorted or standard haul 

 factor) . Ship codes are as follows: BD, Black 

 Douglas; HO, Horizon, OR, Orca ; PT, Paolina T; SB, 

 Spencer F. Baird; ST, Stranger . 



Table 2 - This table lists pooled occurrences of all larval fish 

 taxa taken during 1957 in ranked order. 



Table 3 - This table lists pooled counts of all larval fish taxa 

 taken during 19 57 in ranked order. Numbers are 

 adjusted for percent sorted and standard haul factors. 



Table 4 - This table gives numbers of fish larvae for each taxon, 

 listed ' by station and calendar month in which the tow 

 was taken. Counts are adjusted for percent of sample 

 sorted and standard haul factor. Average values are 

 given for stations occupied more than once during a 

 month. See Table 1 for station and tow data and Table 

 6 for listing of stations with multiple occupancies 

 during a month. Multiple occupancies occurred when a 

 station was occupied more than once during a calendar 

 month; in some cases multiple occupancies resulted from 



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