65 - 



STATION 83 

 (regular forenoon) 



May 29, 1958; 2032 GCT; 15°20'N, 94°55'W; 400 fm; wind, 020°, force 2; temp. , 85.2°Fdry, 77.9°Fwet; 

 weather, partly cloudy; sea, moderate; wire angle, 40°; time zone 6. 



Submarine Daylight: 



Incident solar radiation: daily T 659 gm-cal/cm , day L 13. 35 hr. 



Biolosical Data 



3 



Phytoplankton: depth (m) of chlorophyll a (mg/m ), 1, 0. 19; 5, 0.15; 15, 0.19; 25, 0. 18; 50, 0.48; 100, 0.10. 



Water column chlorophyll a: 28 mg/m^. 



Phytoplankton haul taken. 



Zooplankton: N-C N, o to 266 m, 1829-1902 GCT, 63 ml T, 57 ml S; H at m, 1835-1905 GCT, 34 ml T, 34 ml S. 



a) Duplicate value, 2. 60 (xg at/L. 



