FISHERY BULLETIN: VOL. 71, NO. 3 

 Table 4. — Frequency of occurrence (%) of fish larvae in shallow vs. deep samples taken in June and July-August. 



Deep tows: 



73.1% Engraulidae in 31.2% of all samples 

 23.8% Myctophidae in 95.3% of all samples 

 1.7% Scorpaenidae in 26.6% of all samples 



Deep tows consistently yielded a greater num- 

 ber of taxa because they sampled more com- 

 pletely the vertical range of larval fishes. The 

 taxa most frequently taken (>20% of samples) 

 in shallow tows were E. mordax, S. leucopsarus, 

 and speckled sanddab, Citharichthys stigmaeus. 

 In deep tows they were S. leucopsarus, E. mor- 

 dax, Sebastes spp., Cyclopteridae, and T. crenu- 



laris. Frequency of occurrence of E. mordax in 

 samples was generally higher in shallow tows 

 than in deep tows (the same in shallow and deep 

 bongo samples from July-August). On both the 

 June and July-August cruises the bongos took 

 more anchovies in surface tows than in deep 

 tows. The IKMT took no anchovy larvae in 

 June and in July-August captured more an- 

 chovies in deep tows than in surface tows. The 

 IKMT is more selective for larger forms be- 

 cause small larvae can escape through the net. 

 Thus small anchovy larvae appear to be con- 

 centrated in surface waters, with larger larvae 



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