export more disolved nitrogen and less chlorophyll than the 

 Chesapeake.) 



d. What is the relative influence of shelf edge (upwelling) and 

 other western boundary current intrusions (arm core eddies) on 

 phytoplankton abundance, distribution, and metabolic activity; 

 i.e., can the productivity of poorly sampled shelves be esti- 

 mated from CZCS data and presumably known analogs of eastern 

 and western boundary habitats? 



e. What is the evolution of a catastrophic event, such as the 1976 

 Ceratium tripos bloom in the Mid-Atlantic Bight? What is its 

 origin, over what areas does it occur, and what are its impacts 

 on the living marine resources? Would satellite temperature 

 data have been useful in predicting the onset of the bloom? 



f. Are annual cycles of phytoplankton composition, distribution, 

 abundance, and production generally repeated from year to year 

 over a shelf area, e.g., from Cape Hatteras to Nova Scotia, 

 within the southeast Bering Sea, or off Peru? Are changing 

 patterns from one year to the next, e.g., the North Sea, repre- 

 sentative of all seas? Has coastal production and organic car- 

 bon deposition increased over the last 10 years? 



g. What is the behavior of fish (avoidance or attraction) with 

 respect to natural and eutrophic features? How much of the 

 primary production is passed up the food web in a local area? 

 Can chlorophyll accumulation at shelf fronts, e.g., the Irish 

 and Bering Seas, be detected within CZCS overflights on a 

 routine basis? 



h. How much of the primary production is composed of algal 

 species, poorly used by higher trophic levels, e.g., 

 Phaeocystis blooms? What is the effect of seasonal changes in 

 cell size on chlorophyll retention time within the surface 

 layer? 



i. How can the distribution of hydrographic and nutrient 

 properties be related to phytoplankton abundance, distribution, 



3-4 



