2-3 Summary of basic climate parameters at Eastport 2-17 



3-1 Areas in coastal Maine with critical water quality 

 problems (cross-hatched; U.S. Environmental 

 Protection Agency, 1978) 3-24 



3-2 Conceptual effect of a new tidal regime on a generalized 



intertidal zone (Hodd 1977) 3-45 



4-1 The 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 nontidal 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/m2/yr (adapted 

 from Mills and Fournier 1979) 4-44 



xix 



10-80 



