Table 5. Comparison of the estimated amount of nitrogen required to support the 

 observed annual primary production with the amount of nitrogen delivered to the 

 estuary in freshwater inputs over the year. 



Area 



N for annual primary production/annual N 

 input 



St. Margaret's Bay, N.S. 

 (Sutcliffe 1972) 



8.9' 



Narragansett Bay, R.I 

 (Nixon 1981) 



6.9 



4.4 



Long Island Sound CT. 

 (Harris 1959) 



20 



aa 



Hudson River Estuary, N.Y. 

 (O'Reilly et al. 1976, 

 Duedall et al. 1976, 

 Thomas et al. 1976a, 4-5 June 1974 

 1 day budget only) 



Pamilico River Estuary, N.C. 

 (Kuenzler et al. 1979) 



0.3 



20 



0.04 

 a 



Georgia Bight (0-20m) 

 (Haines 1975) 



111 



San Francisco Bay, CA. 

 (Peterson 1979) 



Kaneohe Bay, H.I. 

 (Smith 1981) 



1.3 



0.6 ( 



^a 



Freshwater flux includes inorganic nitrogen only ( includes only NCL ) 



Freshwater flux includes inorganic, dissolved organic and particulate nitrogen. 



"Freshwater flux includes inorganic and particulate nitrogen. 



Hudson River plus inorganic nitrogen in New York City sewage. 



50 



