saury (Cololabis saira) ; numbers of larvae of sardine, anchovy, 

 hake, jack mackerel, and Pacific mackerel; total number of fish 

 eggs; and total number of fish larvae. 



Discrepancies in ichthyoplankton data in these two files 

 were corrected by inspecting original records from the sorting 

 laboratory, the original ichthyoplankton identification sheets, 

 and the samples themselves. Station and tow data discrepancies 

 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 

 subsequent 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 

 16% of all fish larvae taken on CalCOFI cruises in 1952 and 

 ranked 4th in occurrence (Tables 2 and 3) . The next most 

 abundant species, Pacific hake (Merluccius productus) , 

 represented 15.4% of all fish larvae taken. The deepsea smelt 

 (Leuroglossus stilbius) and sardine (Sardinops sagax) ranked 3rd 

 and 4th in abundance. Sardine incidence was comparatively low 

 (15th) as was hake (12th) indicating relatively large sample 

 sizes. The next most abundant species, a lanternfish 

 (Triphoturus mexicanus) , the sanddab genus Citharichthys , and a 

 gonostomatid (Vinciguerria lucetia) , ranked 5th, 6th, and 7th 

 respectively. Triphoturus mexicanus ranked 1st in occurrence. 

 Jack mackerel larvae (Trachurus symmetricus) ranked 8th in 

 abundance and occurrence. Larvae of Sebastes spp., a composite 

 of about 70 species, ranked 9th in abundance and 2nd in 

 occurrence. The 10th ranked taxon in abundance was a lanternfish 

 (Stenobrachius leucopsarus) . These 10 top-ranking taxa 

 contributed 84.5% of all larvae taken during 1952. The remaining 

 15.5% is represented by 108 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. 



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