Phytoplankton: 



Depth 



Chlorophyll a 



mg./n 



STATION 47 (con . ) 

 Biological Data 



Photosynthesis 



Lab. Incubator Deck Incubator 



mg. C/m. 3 /hr. 

 t ljOOO ft .-candles mg. C/m. 3 /day 



Neutral Filter 



LifiW_ 



50 

 75 

 100 

 150 

 200 



Light 



Dark 



1.19 



2.58 



1.058 



0.592 



0.772 



1.094 



56.1 

 35 



25.8 

 13.4 

 3.2 



0.028 



Water column: 34 mg./m. 2 5.0 mg. C/m. 2 Ar. 



Phytoplankton haul taken. 



Total phosphorus: m., 1.00, 0.91; 10, 0.53; 25, 0.72; 50, 0.79; 75, 2.06; 100, 2.47; 150, 2.53 ug. at./l. 



Zooplankton: N-C N, o to 297 m., 1205 hr. (32'), 70 ml. T, 60 ml. S. 



STATION 48 



STRANGER; February 20-21, 1959; zone +7, 2200-0000; 21°36'N. , 108°25'W. ; sounding, 1580 fm. ; wind, 340°, force 

 2; temp., 73.9°F. dry, 67.4°F. wet; sea, 1; swell, 310°, 6 ft.; BT slide No. 48. 



Incident solar radiation: daily T 494 g.-cal./cm. 



Biological Data 



Zooplankton: N-C N, o to 312 m., 2208 hr. (32'), 127 ml. T, 121 ml. S; H at m. , 2241 hr. (15'), 453 ml. T, 

 453 ml. S. 



Micronekton: o to 83 m., 2307 hr. (46'), 102 ml. T w/o jellies. 



