Proposed Pacific GEOSECS Cruise Track 



nutrient-rich deeper waters to the surface, which results in a rapid 

 growth in the plankton population and subsequently a high level of 

 fish feeding on that food source. An estimated 50 percent of the 

 world's fish supply comes from major upwelling areas. The main 

 objective of the Coastal Upwelling Ecosystems Analysis (CUEA) 

 program is to understand the coastal upwelling ecosystems so that 

 the response of the system to change may be predicted from 

 monitoring a few key biological, oceanographic, or meteorological 

 variables. Field experiments on the physical and biological aspects 

 of upwelling were conducted at two sites off the west coast of North 

 America during 1972. The results of these investigations and the 

 scientific teams involved are providing the basis for a multi- 

 disciplinary investigation of upwelling to be conducted off the 

 coasts of the United States, Africa, and South America during 1973 

 and 1974. 

 Underthe IDOE Seabed Assessment program, the Atlantis U of the 



46 



