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CRITICAL CAPE COD HABITATS
Salt Marshes
Salt marshes are the most dominant coastal wetland
on Cape Cod. They occur behind barrier beaches and within
estuarine systems and are divided into two major zones; the
low marsh and the high marsh. Low marshes are flooded twice
daily and the high marsh is flooded once a month. Plants that
exist in these zones are determined by their saltwater tolerance.
Driven by the tides, salt marshes are feeding grounds for
numerous marine species. They also function as nurseries for
over two-thirds of the commercially important fisheries. Salt
marshes are being impacted by residential development. Below
is an example of a salt marsh habitat.
Smith's
Dock Sanctuary: located in West Barnstable
on the Great Marsh and protected by Orenda Wildlife Land trust
in 1998. These five acres are home to threatened Northern
Diamondback Terrapin Turtle.
Austin
Smith Sanctuary: Protected by Orenda Wildlife
Land Trust located in Orleans and Eastham
Plants that exist in salt marshes:
- Saltwater cordgrass (dominates low marsh)
- Saltmeadow cordgrass (dominates high marsh)
Fish that exist in salt marshes:
- Finfish Crabs
- Mollusks
- Shrimp
photos copyright ©Farley
Lewis
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