LIST OF FIGURES 



Page 



4-1 TKe Maine Coast Characterization Area Marine System 4-2 



4-2 Hierarchical classification of the marine system 



of coastal Maine (Cowardin et al, 1979) 4-4 



4-3 Size distribution of sediment particles in marine 

 habitats of coastal Maine. Dots indicate dominant 

 size; arrows indicate range 4-7 



4-4 Mean annual sea surface temperatures recorded at 

 Boothbay Harbor from 1906 to 1978 (a) and 5-year 

 moving average (b) (Garfield and Welch 1978) 4-12 



4-5 The annual temperature and salinity cycle at 



Boothbay Harbor (region 2; Garfield and Welch 1978) 4-15 



4-6 Location of stations sampled for temperature and 



salinity of sea water (Speirs et al. 1976) 4-16 



4-7 Tidal levels and ranges 4-20 



4-8 Coastal salinity (ppt) contours off the Penobscot, 

 Kennebec, and Sheepscot Rivers during May 1965. 

 Stippled areas have salinities <30 ppt (Graham 1970b) .... 4-21 



4-9 Schematic representation of the summer nontldal surface 



currents in the Gulf of Maine (Bigelow 1927) 4-24 



4-10 Major features of nontidal circulation along the Maine 

 coast. Numbers 1 to 7 refer to table 4-4, 

 which follows (Graham 1970b) 4-26 



4-11 Food habits of marine fishes 4-38 



4-12 Food habits of marine mammals 4-40 



4-13 Simple representation of the energetic relationships 



between trophic levels 4-43 



4-14 Marine food web for fishery centered on the southeast 

 Nova Scotian shelf. Values are kcal/n^ /yr (adapted 

 from Mills and Fournler 1979) 4-44 



4-15 Generalized food web for the marine system of coastal Maine . 4-45 



4-16. Energy flow model for the. marine system in coastal Maine. 



The top half of the, model refers to interactions within the 



water column and the bottom half to those that 



occur on or in the bottom 4-46 



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10-80 



