1987) were conducted concurrently with editing procedures and 

 provided cross-checks that allowed correction of errors. 



SPECIES SUMMARY 



Larvae of northern anchovy {Engraulis mordax) represented 

 36% of all fish larvae taken on CalCOFI cruises during 1954 and 

 numbered more than three times as many as Pacific hake 

 {Merluccius productus) , the next most abundant species (Tables 2, 

 3) . These two species represented about half the total fish 

 larvae taken in 1954. Both species were of relatively high 

 incidence, ranking 2nd and 4th in occurrence. Rockfish larvae 

 (Sebastes spp.) ranked third in abundance (11% of total) but 

 first in occurrence, reflecting the widespread distribution of 

 this speciose group. Sardine larvae (Sardinops sagax) ranked 4th 

 in abundance (6%) and 8th in occurrence. The next most abundant 

 were three midwater species - two lanternf ishes (Triphoturus 

 mexicanus and Stenobrachius leucopsarus) , and a gonostomatid 

 {Vinciguerria lucetia) , ranking 5th, 6th, and 7th, respectively. 

 Each represented about 4% of the total fish larvae taken. 

 Triphoturus mexicanus ranked 3rd in occurrence, and the latter 

 two species were of identical rank in occurrence as in abundance. 

 The deepsea smelts Leuroglossus stilhius and Bathylagus wesethi 

 ranked 9th and 10th in abundance but L. stilbius larvae were of 

 comparatively higher incidence (ranking 5th in occurrence vs. 

 10th) . These 10 top-ranking taxa contributed 86% of all larvae 

 taken during 1954. The remaining 14% is represented by 117 taxa 

 plus the unidentified and disintegrated categories. Of the 10 

 taxa, 5 were midwater species, 2 were coastal demersal species or 

 generic groupings, and 3 were coastal pelagic species. 



EXPLANATION OF TABLES 



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

 tow data for 1954, 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 2-11) . 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 1954. Time is listed as 

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

 hour designation. Methods for detennining 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 



11 



