34 



Submarine Daylight: 



2 

 Incident solar radiation: daily T 517 gm-cal/cm , day L 12.47 hr. 



Biological Data 



■ chlorophyll a (mg/m 

 140, 0.092. 



Phytoplankton: depth (m) of chlorophyll a (mg/m ), 1, 0. 11; 20, 0. 083; 40, missing; 60, 0.045; 100, 0.30; 



Water column chlorophyll a: 20 mg/m^. 



Zooplankton: N-C N, o to 320 m, 1900-1939 GCT, 49 ml T, 49 ml S; H at m, 1910-1941 GOT, 6 ml T, 6 ml S. 



STATION 29 

 (regular night) 



May 5, 1958; 0700-0930 GCT, 10°17.5'N, 105 °18'W; 1805 fm; wind, 050°, force 4; temp. , 85.0°Fdry, 80.0°Fwet; 

 weather, 02; clouds, 8, amt. , 2; sea, 2; swell, 070°, missing; time zone 7. 



Biological Data 



Zooplankton: N-C N, o to 290 m, 0839-0913 GCT, 67 ml T, 67 ml S; H at m, 0838-0908 GCT, 30 ml T, 

 30 ml S. 



Nekton; o, depth missing, 0717-0821 GCT, 130 ml T. 



Night- lighting operations. 



