Three of the SANDS collections are considered together, since they 

 sampled from 50 meters to the surface and thus are more directly comparable with 

 the three GILLISS collections. The relative proportions of myctophids are small, 

 as are the total numbers of fish and the numbers of individuals of each species, 

 resulting in quite variable estimated fish concentrations (Table ll-B), Only 4-A, 

 which contained six specimens of Lepidophanes gaussi out of 13 fish, had any 

 appreciable numbers of any one species. On the basis of these few individuals, 

 there are no apparent differences between the GILLISS' hauls which were taken 

 in November and the SANDS' hauls which were taken in March. 



The four remaining surface scattering layer hauls were taken by the 

 SANDS from the surface down to depths of 95 to 140 meters. As in the GILLISS 

 and SANDS collections discussed above, the total numbers of fish as well as the 

 numbers of individuals of each species are low and the estimated fish concentrations 

 are variable (Table ll-C). In collection 7A four specimens of Notolychnus valdiviae 

 and four specimens of Lepidophanes gaussi were taken out of a total of 12 fish. In 

 this collection two-thirds of the species and 83 percent of the specimens were 

 myctophids. Two of the three fish taken in Tow 8A were also myctophids. In 

 collection 13B four specimens of Gonostoma elongatum and four specimens of 

 Lestidiops affinis were taken out of a total of 22 fish, while all other species were 

 represented by one or two individuals. 



Several daytime hauls from the surface to about 110 meters or less 

 on both the GILLISS and SANDS trips yielded only a few larval or post larval 

 fish. 



On the GILLISS trip, several hauls attempted to use the discrete 

 depth sampling capabilities of the MPS (Appendix A). However, the sampler 

 was cocked properly on only two occasions, both of which were day hauls; one 

 to a depth of 450 meters and the other to a depth of 1000 meters. The shallower 

 haul, 1-A, contained no fish larger than larvae or post larvae in any of the 

 three nets. However, the deep haul, 1-D contained substantial numbers of fish. 



Tow 1-D samples the depth intervals of 1000 m - 800 m, 800 m - 

 600 m, and 600 m to the surface (Figure 9). The estimated fish concentrations 

 are extremely variable (Table III). Large numbers of Cyclothone brauerl and 

 C. microdon are primarily responsible for the high fish concentration in the 

 deep sample (Figure 10). Although 46 percent of the species in the sample are 

 myctophids they make up less than 10 percent of the specimens. However, the 

 two most abundant myctophids, Notolychnus valdiviae and Lepidophanes gaussi , 

 were consistently among the most abundant species in the Area Bravo night 

 surface scattering layer collections reported above. 



16 



