Simon, H.A. 1973. "The organization of complex systems," p. 1-27. In: H.H. Pattee 



(ed.) Hierarchy theory . The challenge of complex systems . Geo. Braziller 



New York. 

 Steele, J.H. 1974. The structure of marine ecosystems . Harvard Univ. 



Press, Cambridge. 

 Stevenson, J.C. and N.M. Confer (eds.). 1978. "Summary of available information 



on Chesapeake Bay submerged vegetation." FWS/OBS-78/66, Fish and Wildlife 



Service , U.S. Dept. of Interior, Washington, D.C. 

 Titus, J.E. and M.S. Adams. 1979. "Coexistence and the comparitive light relations 



of the submerged macrophytes , Myriophyllum spicatum and Vallisneria 



americana . " Oecologia 40: 273-286. 

 Titus, J., R.A. Goldstein, M.S. Adams, J.B. Mankin, R.V. O'Neill, P.R. Weiler, 



H.H. Shugart and R.S. Booth. 1975. "A production model for Myriophyllum 



spicatum L." Ecology 56:1129-1138. 

 Verhagen, J.H.G. and P.H. Nienhuis . 1983. "A simulation model of production, 



seasonal changes in biomass and distribution of eelgrass ( Zostera marina ) 



in Lake Grevelingen." Mar . Ecol . Progr . Ser . (In press). 

 Walsh, J.J. 1975a. "A spatial simulation model of the Peruvian upwelling 



ecosystem." Deep-Sea Res . 22:201-236. 

 Walsh, J.J. 1975b. "Utility of systems models: A consideration of some possible 



feedback loops of the Peruvian upwelling ecosystem," p. 617-633. In: L.E. 



Cronin (ed.) Estuarine research . Academic, New York. 

 Watt, K.E.F. 1975. "Critique and comparison of biome ecosystem modeling," p. 139- 



152. In: B.C. Patten (ed.) Systems analysis and simulation in ecology , 



Vol. 3. Academic Press, New York. 

 Weber, J. A. , J.D. Tenhuren, S.S. Westrin, C.S. Yo cum and D.M. Gates. 1981. 



"An analytical model of photosynthetic response of aquatic plants to 



inorganic carbon and pH. " Ecology 62:697-705. 

 Wetzel, R.L. and R.G. Wiegert. 1983. "Ecosystem simulation models: Tools for 



the investigation and analysis of nitrogen dynamics in coastal and marine 



ecosystems." In: E.J. Carpenter and D.G. Capone (eds.) Nitrogen in the 



marine environment . Academic, New York. (In press). 

 Wiegert, R.G. 1975. "Simulation models of ecosystems." Ann . Rev . Ecol . 



Systematics 6:311-338. 



158 



