encompassed the vertical distribution of sardine eggs and larvae. 

 Wide-ranging joint biological and oceanographic survey cruises 

 were resumed in 1949 with sardine as the focus; however, an 

 increasing interest in other biological components resulted in 

 the deepening of standard tows to 140 m in 1951. This marked the 

 beginning of truly quantitative ichthyoplankton sampling on 

 CalCOFI surveys. 



Data resulting from CalCOFI surveys in 1965 have been 

 published in a number of forms. Hydrographic data (Univ. of 

 Calif., SIO, 1965, 1967) and zooplankton volumes (Smith, 1971) 

 were presented in standard formats. Distributional maps of 

 larvae of 5 taxa taken on CalCOFI surveys during 1965 are 

 presented in the CalCOFI Atlas series: northern anchovy 

 (Engraulis mordax) , Kramer and Ahlstrom, 1968; jack mackerel 

 (Trachurus symmetricus) and Pacific hake (Merluccius productus) , 

 Ahlstrom, 1969; Pacific sardine (Sardinops sagax) , Kramer, 1970; 

 rockfish (Sebastes spp.), Ahlstrom et al . , 1978. 



A computer data base for eggs and larvae of sardine and 

 anchovy, for larvae of hake, jack mackerel and Pacific mackerel 

 (Scomber japonicus) , and for eggs of Pacific saury (Cololabis 

 saira) was established in 1969. The development of a data base 

 for other fish larvae is a complex undertaking because competency 

 of identification has evolved steadily over the past 38 years. 

 We began the task of producing a CalCOFI ichthyoplankton data 

 base and associated data report series in 1983. All available 

 original records for 1965 were subjected to an extensive 

 verification and editing process to produce this report. This 

 and previous (Ambrose et al., 1987a, b,c; 1988; Sandknop et al., 

 1987a, b; 1988a, b; Stevens et al . , 1987a, b,c; Sumida et al., 

 1987a, b; 1988) and subsequent reports make the CalCOFI 

 ichthyoplankton and station data available to all investigators 

 and serve as guides to the computer data base. The data base 

 will be modified when additional errors are discovered and when 

 composite taxa from the earlier years are reidentif ied. These 

 reports are the fundamental reference documents against which 

 subsequent changes in the data base can be compared. 



SAMPLING AREA AND PATTERN 



In 1965, CalCOFI survey cruises were conducted at quarterly 

 intervals. A total of 1086 stations included in this data base 

 was occupied on 4 cruises, with an average of 272 stations per 

 cruise (range 193-311) . Coverage of the survey station pattern 

 varied among cruises and the entire survey area was not covered 

 on any single cruise (Figures 1-5, Table 1) . The area off 

 northern California (lines 40-57) was not covered in 1965. The 

 area off central California (lines 60-77) was covered in January, 

 April, and July. The area between Pt. Conception, California and 

 Pt. San Juanico, Baja California (lines 80-137) was surveyed on 

 all cruises and coverage extended to line 140, off Cape San 

 Lazaro, in February and August. Coverage extended seaward to 

 station 200 (approximately 600-700 miles offshore) on lines 60, 



