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herons; opposum, shrews, voles, rats, raccoons, and many other 

 animals. 



Freshwater Marsh . While freshwater marshes are more 

 abundant toward the head of the Bay where the water is virtually 

 fresh, they are also found upstream in almost every tributary 

 stream in the Bay. A great diversity of plants is distributed 

 in these marshes in response to variations in depth of water and 

 salinity. The most important representative species include 

 three-square, cattail, wild rice, common reed, and arrowhead. 

 Also often occurring are varieties of rushes, sedges, and alder. 



Corresponding with the high diversity of plant life, there 

 is also a high diversity of animal life, including: salamanders, 

 toads, many varieties of frogs, turtles, and snakes; herons, mallards, 

 bald eagles, hawks and osprey; moles, beaver, muskrat and fox. 



Bogs . Rather limited in size and distribution, bogs differ 

 significantly from swamps and marshes. Bogs are so acid that 

 biomass accumulates in their basins in the form of peat rather 

 than decomposing and being recycled in the system as is more 

 often the case in marshes and swamps. Bogs have a cushion-like 

 surface layer of vegetation dominated by mosses. Also found is 

 buckbean, cotton grass, numerous sedges, cranberry, and bog 

 rosemary. A variety of unusual plants are found in bogs, 

 including pitcher plant, baldderworts, orchids, sundews, and 

 highbush blueberry. It is not unusual to find certain pine, 

 maple and gum trees in and around bogs. The animal species of 



