PRINCIPAL 

 INVESTIGATOR(S) 



Cynthia H. Pilskaln 

 Department of Oceanography 

 Room 211 



5741 Winthrop Libby Hall 

 University of Maine 

 Orono, ME 04469-5741 



Mary Silver 



Institute of Marine Sciences 

 University of California 

 Santa Cruz, CA 95064 



Daniel L. Davis 



MBARI 



Pacific Grove, CA 93950 



PROJECT TITLE 



ROLE OF MARINE AGGREGATES IN CARBON EXPORT 

 FLUXES ON THE CAPE HATTERAS CONTINENTAL 

 MARGIN 



AMOUNT OF FUNDING FY 1993: $100 K 



SUMMARY OF GOALS 



A. Quantify the size, abundance, POC content, flux, and in-situ sinking rates of marine 

 aggregates (> 0.5mm) in the OMP study region, concentrating on the outer shelf and slope/rise. 



B. Quantify the depth-dependent flux of POC in the deep slope "carbon depocenter" region. 



C. Integrate the above data sets to determine the contribution by marine aggregates of variable 

 size and sinking rates to POC fluxes and off-shelf carbon export. 



SPATIAL AND TEMPORAL SAMPLING SCALES 



A. Seasonal (winter, spring, summer) cruise-conducted measurements of marine aggregate size, 

 abundance, and in-situ sinking rates to be obtained along the 3 cross-shelf transect lines and 

 (possibly) along the shelf-break between lines 1 and 2. 



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