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WEATHER BUREAU MARINE PROGRAM 



The meteorology program aboard the ANTON BRUUN was upgraded during the July, 

 1963 in-port period with the installation of a balloon inflation shelter and 

 additional rawinsonde equipment. A complete surface synoptic and radiosonde 

 program is now operational with Weather Bureau equipment and one meteorologist, 

 Observations have been taken on all cruises in the Indian Ocean. 



Meteorological observations are also being made on the cruises of ATLANTIS 

 II, CONRAD, ARGO, and PIONEER. 



BUREAU OF COMMERCIAL FISHERIES 



The research program of the Bureau of Commercial Fisheries in the Indian 

 Ocean has the following objectives: 



1. To study the distribution and abundance of adult tunas in 

 relation to the circulation during the two monsoon seasons. 



2. To study the relation of the apex predators (tunas, marlins, 

 sharks, etc.) to the food-chain, standing crops and 

 productivity. 



a. Organisms eaten (qualitative and quantitative analyses 

 of stomach contents). 



b. Standing crop of nekton (qualitative and quantitative 

 analyses of mid- water trawl collections), 



c. Standing crop of zooplankton (qualitative and 

 quantitative analyses of zooplankton collections), 



d. Phytoplankton productivity (C-^ uptake). 



3. Investigate subpopulations (seriology of apex predators: tunas, 

 billfish, and sharks), 



k. Distribution and abundance of larval and juvenile fish (plankton 

 and night-light collections). 



5. Zoogeography of zooplankton and zooplankton forms as biological 

 indicators (distribution and abundance of selected zooplankters 

 such as eopepods of the genus Candacia ) . 



6. Taxonomy, occurrence, and distribution of demersal fishes and 

 invertebrates. 



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