between the two files were corrected by reviewing ships' logs and 

 deck tow sheets, original records from the sorting laboratory, 

 cruise announcements, publications, header information on the 

 ichthyoplankton identification sheets, and station plots 

 generated for each cruise. Eventually all station and tow data 

 were checked by comparing these sources. 



The corrected ichthyoplankton data base was then examined 

 statistically and outliers were found and checked as above. 

 Distributional plots were then prepared for each taxon and these 

 were checked by reviewing the data sources mentioned above and by 

 examining archived specimens. A listing of each taxon by station 

 (Table 4) was produced, which became the primary document for 

 subseguent checks. Misidentif ications found in geographic 

 outlier 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 (Moser et al . , 

 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 

 58% of all fish larvae taken on CalCOFI cruises during 1960 and 

 numbered eight times as many as the gonostomatid Vinciguerria 

 lucetia , the next most abundant species with 7% of the total 

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

 incidence; V. lucetia ranked 3rd. The next most abundant species 

 was Pacific hake, Merluccius productus , with 6.6% of total 

 larvae; it ranked 7th in occurrence. A deepsea smelt, 

 Leuroglossus stilbius , ranked 4th in abundance (5.9%) and 5th in 

 incidence. The myctophid Triphoturus mexicanus ranked 5th in 

 abundance, but ranked 2nd in occurrence suggesting relatively 

 small sample sizes. Larvae of Sebastes spp., a composite of 

 about 70 species, ranked 6th in abundance and 4th in incidence. 

 Another myctophid, Stenobrachius leucopsarus , also ranked in the 

 top ten in both abundance (7th) and occurrence (9th) . Pacific 

 sardine (Sardinops sagax) , jack mackerel (Trachurus symmetricus) , 

 and the lanternfish Diogenichthys laternatus completed the ten 

 most abundant taxa ranking 8th, 9th, and 10th respectively; 

 however, none of these taxa ranked in the top ten in occurrence 

 (24th, 14th, 16th respectively) suggesting relatively large 

 sample sizes. These 10 top-ranking taxa contributed 90.5% of all 

 larvae taken during 1960. The remaining 9.5% is represented by 

 146 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. 



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