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SUN 

 (ENERGY) 



WIND 

 (ENERGY) 



MIGRATORY BIRDS 

 & MAMMALS 

 (CARBON, NUTRIENTS) 



GROUNDWATER 

 (FRESHWATER) 



flit I II 



CHESAPEAKE BAY SYSTEM 



(WETLANDS. TRIBUTARIES, BAY PROPER) 



tt~t 



DEEP SEDIMENTS 



(NUTRIENTS, 



POLLUTANTS 



SEDIMENTS 



CARBON) 



COMMERCIAL & 

 SPORT FISHERIES 

 (CARBON, NUTRIENTS) 



RESPIRATION 

 (C0 2 ) 



r~r 



TIDES 

 _► (SALTWATER) 



PLEASURE BOATS, 

 SHIP TRAFFIC 

 (POLLUTANTS) 



CONTINENTAL SHELF FISHES: 

 EGGS, LARVAE, ADULTS 

 (CARBON, NUTRIENTS) 



ATLANTIC 

 (SEA WATER 

 NUTRIENTS, 

 CARBON) 



Figure 1. Exchanges between the Chesapeake Bay System and its environment. 



MARSH PLANTS 



8t NT HIC 

 ALGAE 



200PLANKT0N 



CTENOPHORES 

 ft JELLYFISH 



Jo runui 

 TTUl 



BLUE CRABS j -^P*^ 



OYSTERS 

 & CLAMS 



Z5Z 



\man/ 



Figure 2. Major processes in a general conceptual model of the Chesapeake Bay system. 



