36 unusual condition eat these stations may be due to sampling. the condition is real, If some of the factors which may be involved include differences in rate and set of currents adjacent to the atolls, turbulence, and eddies north of Bikini. — Careful analysis of the bathythermograph records would be required before any possible relationship between the distribution of activity and the thermocline could be determined. appears, however, mocline at most, It that 190-m samples were taken below the therif not all, stations. Samples were taken at 4OO m or 500 m at ten stations east of 159° E and had levels of activity comparable to those at 100 m and 150 m at the same stations (Table 1). ll