|Brackish Tidal Marsh||Marine Intertidal Gravel/Sand Beach Community|
|Coastal Salt Pond Community||Marine Intertidal Rocky Shore Community|
|Fresh/Brackish Tidal Shrubland||Salt Marsh|
|Fresh/Brackish Tidal Swamp||Seagrass Community|
|Freshwater Tidal Marsh|
The Massachusetts Office of Coastal Zone Management's web pages have additional information on coastal resources, such as their Seafloor Mapping Program that includes a seafloor habitat classification, links to EEA's Massachusetts Ocean Management Plan with habitat discussions, papers on eelgrass habitat, and guides for barrier beach management and salt marsh monitoring. CZM's mission is to balance the impacts of human activity with the protection of coastal and marine resources.