concurrently with editing procedures and provided cross-checks 

 that allowed correction of errors. 



SPECIES SUMMARY 



Larvae of northern anchovy (Engraulis mordax) represented 

 57.2% of all fish larvae taken on CalCOFI cruises during 1964 and 

 numbered more than six and one-half times as many as the 

 gonostomatid Vinciguerria lucetia, the next most abundant species 

 with 8.6% of the total larvae (Tables 2, 3). Northern anchovy 

 also ranked first in incidence; V. lucetia ranked 4th. Larvae of 

 Sebastes spp., a composite of about 70 species, ranked 4th in 

 abundance (5.4%) and 2nd in occurrence. The next most abundant 

 species was Pacific hake, Merluccius productus , with 3.3% of 

 total larvae; it ranked 9th in occurrence. A deepsea smelt, 

 Leuroglossus stilbius , ranked 5th in abundance (3.2%) and 

 occurrence. The myctophid Triphoturus mexicanus ranked 6th in 

 abundance and 3rd in occurrence. Another myctophid, 

 Stenobrachius leucopsarus , also ranked in the top 10 in both 

 abundance (7th) and occurrence (6th) . Jack mackerel larvae 

 (Trachurus symmetricus) and larvae of Pacific sardine {Sardinops 

 sagax) ranked 8th and 9th in abundance but only 15th and 28th in 

 occurrence, suggesting relatively large sample sizes. The 

 sanddab genus Citharichthys completed the 10 most abundant taxa 

 ranking 10th in numbers and 11th in occurrence. These 10 top- 

 ranking taxa contributed 88.5% of all larvae taken during 1964. 

 The remaining 11.5% was represented by 142 taxa plus the 

 unidentified and disintegrated categories. Of the 10 taxa, 4 

 were midwater species, 3 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 1964, 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 2-5) . 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. 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 



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