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 

 46.1% of all fish larvae taken on CalCOFI cruises during 1978 and 

 numbered three times as many as the gonostomatid Vinciguerria 

 lucetia , the next most abundant taxon with 13.8% of the total 

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

 incidence; Vinciguerria lucetia ranked 3rd. Pacific hake, 

 Merluccius productus , ranked 3rd in abundance (5.2%) but only 

 14th in occurrence. Larvae of Sebastes spp. , a composite of 

 about 70 species, ranked 4th in abundance (4.8%) and 2nd in 

 occurrence. The family Sciaenidae and the deepsea smelt 

 Leuroglossus stilbius ranked 5th and 6th in abundance but only 

 28th and 13th in occurrence, suggesting relatively large sample 

 sizes. The myctophid Triphoturus mexicanus also ranked in the 

 top 10 in both abundance (7th) and occurrence (8th) . Another 

 myctophid, Stenobrachius leucopsarus , ranked 8th in abundance and 

 11th in occurrence. Two deepsea smelts (Bathylagus ochotensis 

 and Bathylagus wesethi) completed the 10 most numerous taxa, 

 ranking 9th and 10th; they ranked 4th and 10th in occurrence, 

 respectively. The 10 taxa contributed 82.3% of all larvae taken 

 during 1978; the remaining 17.7% was represented by 162 taxa plus 

 the unidentified and disintegrated categories. The top 10 taxa 

 comprised 3 coastal demersal taxa, 1 coastal pelagic species, and 

 6 midwater species. 



EXPLANATION OF TABLES 



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

 tow data for 1978 (including November and December, 

 1977) , 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 2-8) . 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 



11 



