70 



STATION 88 

 (in situ productivity) 



May 31, 1958; 1227 GCT; 15°11'N, 96°55'W; 2130 fm; wind, 320°, force 3; temp. , 85.3°F dry, 

 weather, cloudy; sea, moderate; wire angle, 25°; time zone 6. 



80.3 F wet; 



Submarine Daylight; 



Phytoplankton: depth (m) of chlorophyll a (mg/m ), 1, 0.49; 5, 0.30; 10, 0. 14; 25, (0. 27); 50, 0. 22; 80, 0.28; 140, 0. 16. 



Water column chlorophyll a: 34 mg/m . 



Phytoplankton haul taken. 



Zooplankton: N-C N, o to 269 m, 1533-1606 GCT, 127 ml T, 127 ml S; H at m, 1539-1609 GCT, 37 ml T, 37 ml S. 

 C N, H at 94 m, 1306-1321 GCT, 175 ml T, 175 ml S; H at 38 m, 1440-1455 GCT, 239 ml T, 239 ml S; 

 H at 12 m, 1507-1523 GCT, 39 ml T, 39 ml S; H at 61 m, 1616-1631 GCT, 194 ml T, 162 ml S. 



Night-lighting operations. 



a) Duplicate values: 44 m, 0. 41; 238 m, 2. 78; 310 m, 2. 87; 389 m, 3. 07; 582 m, 3. 26 ng at/L. 



