checks and other misidentif ications and data problems discovered 

 in the course of examining archived samples resulted in several 

 iterations of Table 4. Finally, totals in Table 4 were checked 

 against annual summaries of incidence and abundance (Tables 2 and 

 3). Ecological analyses of the data were conducted concurrently 

 with editing procedures and provided cross-checks that allowed 

 correction of errors. 



SPECIES SUMMARY 



Larvae of northern anchovy (Engraulis mordax) represented 

 41% of all fish larvae taken on CalCOFI cruises during 1967 and 

 numbered over three times as many as the sanddab category 

 Citharichthys spp. , the next most abundant taxa with 12% of the 

 total larvae (Table 2, 3). Northern anchovy also ranked first in 

 incidence; Citharichthys spp. ranked 5th. The next most abundant 

 species was the gonostomatid Vinciguerria lucetia also with 12% 

 of total larvae; it ranked 3rd in occurrence. The myctophid 

 Triphoturus mexicanus ranked 4th in abundance (8%) and 2nd in 

 incidence. A deepsea smelt, Bathylagus wesethi , ranked 5th in 

 abundance and 6th in incidence. Larvae of Pacific sardine 

 (Sardinops sagax) and the myctophid Diogenichthys laternatus 

 ranked 6th and 7th in abundance respectively; however, in 

 incidence these species ranked only 26th and 13th respectively, 

 suggesting relatively large sample sizes. Jack mackerel 

 (Trachurus symmetricus) , Sebastes spp. (a composite of about 70 

 species of rockf ish) , and the gonostomatid genus Cyclothone spp. 

 completed the 10 most abundant taxa ranking 8th, 9th, and 10th 

 respectively; these taxa also ranked in the top 10 in incidence 

 (10th, 8th, and 9th respectively) . These 10 top-ranking taxa 

 contributed 85% of all larvae taken during 1967. The remaining 

 15% was represented by 111 taxa plus the unidentified and 

 disintegrated categories. Of the 10 taxa, 5 were midwater 

 species or generic groupings, 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 1967, 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 2-3). 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 



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