59 



STATION 75 

 (regular night) 



May 27, 1958; 0600-0845 GOT; 12°22'N, 90°06'W; 3000 fm; wind, direction missing, force 1; temp. , 85. OT dry, 

 78.4°F wet; weather, 02; clouds, type missing, amt. , 5; sea, 1; swell, 140°, missing; time zone 6. 



Biological Data 



Zooplankton: N-C N, o to 273 m, 0728-0801 GCT, 206 ml T, 206 ml S; H at m, 0735-0805 OCT, 407 ml T, 

 407 ml S. 



Nekton: o to 83 m, 0620-0723 GCT, 533 ml T. 



Night-lighting operations. 



STATION 76 

 (regular forenoon) 



May 27, 1958; 1654 GCT; 13°16'N, 91°23.5'W; 910 fm; wind, 

 78.8°F wet; weather, partly cloudy; sea, slight; wire angle, 



direction missing, 

 00°; time zone 6. 



force 1; temp. 



. 0°F dry. 



Submarine Daylight: 



Attenuation Coefficient Depth 



(K) (m) 



0.174 5 



0.202 10 

 0.188 



Alpha 



0.020 

 0.019 



Incident solar radiation: daily T 618 gm-cal/cm , day L 13. 30 hr. 



a) Duplicate values: 282 m, 2. 64; 376 m, 2. 84; 475 m, 3. 16; 1068 m, 3. 57 ng at/L. 



