HYPOTHESIS OF ANIMAL EXCLUSION 



3i7 



(a night station), nine stations of phosphate value of 90-100 mg., six of which are night 

 stations, and five stations in phosphate value of > 100 only two of which are night stations. 

 If we consider the night stations only we can divide them into three sets of three stations 

 each having phosphate ranges of 1 13-100,99-95 and 92-86. The small number of stations 

 is unsatisfactory, but if the distribution of a number of different species within these three 

 sets of three stations gives some degree of consistency, then it may be better than no- 

 thing. In Table LXV the two sets of data, for shallow water and for deep water (night 

 stations only), are set out in respect of the vertically migrating plankton: Macroplankton 

 and Copepoda Groups A and C. Few though the data are in respect to deep-water 



Table LXIII 



Showing the zooplankton organisms, expressed as numbers per 50 m. haul, taken in the top 250 m. (or less according 

 to depth of sounding) by the N 70 V nets at each daylight station; the stations being arranged in order of 

 decreasing soundings from deep to shallow water 



* Bottom not reached. 



41 



