49 



STATION 55 

 (special) 



May 16, 1958; 0530-0723 GCT; 5°34'N, 87°05.5'W; 50 fm; time zone 6. 



BioloKJcal Data 



Zooplankton: N-C N, H at 60 m, 0642-0714 GCT, 167 ml T, 167 ml S; H at m, 0650-0720 GCT, 210 ml T, 

 210 ml S. 



Nekton: H at 20 m, 0535-0635 GCT, 43 ml T. 



STATION 56 

 (regular night and in situ productivity) 



May 16, 1958; 1220 GCT; 5°31. 5'N, 86°43'W; 1250 £m; wind, 180° 

 weather, overcast; sea, moderate; wire angle, 10°; time zone 6. 



force 3; temp. , 83. 8°F dry, 77. 8°F wet; 



Submarine Daylight: 



a) Duplicate value, 3. 36 ng at/L. 



