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laboratories, and as independent investigators in certain areas and island 

 groups of the Indian Ocean. 



1. The Biological Oceanographic Ship Cruises 



The R/V ANTON BRUUN has been designated as the main biological research 

 vessel, Responsibility for operation of the vessel has been contracted 

 to Alpine Geophysical Associates, Inc. of Norwood, New Jersey. During 

 her period of participation in the Expedition, the ANTON BRUUN will be 

 based at Bombay,, Also stationed at Bombay as Scientific Liaison Officer 

 is Dr. T. S. Satyanarayana Rao, on leave from Andhra University in India, 



On each of the nine cruises planned, stations will be occupied at in- 

 tervals of 2° to 5° latitude on the meridional sections and more fre- 

 quently on the coastal cruises. The basic program at each station will 

 consist of the following: 



a. Hydrographic cast to 1,000 meters for temperature, salinity, dis- 

 solved oxygen, phosphate, nitrate, nitrite, silicate, ammonia. 



b. Van Dorn bottle cast to depths of penetration of 100, 50, 25, 10, 

 and Vjo of incident light for pigment analysis and for 2^-hour simu- 

 lated in situ and k- hour incubator C uptake experiments. 



c. Submarine light penetration at all daylight stations. 



d. Vertical plankton haul from 200 meters with standard IOE net 

 (mesh aperture = 0.330 mm) for deposition in International 

 Taxonomic Center at Cochin, India. 



e. Vertical micro-plankton haul from 200 meters with No. 25 mesh 

 net, 



f. Oblique plankton tow with Be'' sampler (mesh aperture - 0.33 mm) 

 from 2,000 meters or greatest depth possible in shallow water. 



g. Bathythermograph observation. 



Additional work to be undertaken on each cruise will vary depending on each 

 cruise. Intensive sampling will be done with different types of gear, as 

 shown below in the cruise schedule established for the ANTON BRUUN. 



ANTON BRUUN Cruise I (Figure 13) 



Arrived Sailed 



1963 

 3 Mar 12 Mar Bombay Gulf of Mexico 



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