Parent Layer: Biological Habitat

Name: Seagrass Meadows

Display Field: state

Type: Feature Layer

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Description: Seagrass meadows are critical wetlands components of shallow coastal ecosystems throughout the region. Seagrass meadows provide food and cover for a great variety of commercially and recreationally important fauna and their prey. Eelgrass and other seagrasses are often referred to as "Submerged Aquatic Vegetation" or SAV. This distinguishes them from algae, which are not classified as "plants" by biologists (rather they are often placed in the kingdom protista) and distinguishes them from the "emergent" saltwater plants found in salt marshes. In addition to the term SAV, some coastal managers use the term SRV or submerged rooted vegetation. <br/> <br/> The seagrass meadows layer was created from separate datasets for the states of Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, and New York. Where possible, polygon datasets depicting the most recent eelgrass surveys were used. Attributes with common themes for each dataset were integrated in order to better represent SAV extent and year sampled. The data user is encouraged to read this and the metadata of each individual state’s data carefully, as geometry, attribute details, and timeliness are not necessarily consistent among datasets used to develop this layer. Details of each state’s data source are described in the <a href="https://www.northeastoceandata.org/wp-content/uploads/files/metadata/Themes/Habitat/SeagrassMeadows.pdf" target="_blank">metadata</a>.

Definition Expression: N/A

Copyright Text: This data was compiled by the Northeast Ocean Data Portal using datasets from the Maine Department of Marine Resources, Bureau of Resource Management, Maine Department of Environmental Protection, University of New Hampshire, Geospatial Science Center, New Hampshire Department of Environmental Services, NH GRANIT (New Hampshire Geographically Referenced Analysis and Information Transfer System),Piscataqua Region Estuary Partnership, Massachusetts Department of Environmental Protection, Massachusetts Division of Marine Fisheries, MassGIS, Rhode Island Coastal Resources Management Council, URI Environmental Data Center, Narragansett Bay National Estuarine Research Reserve, Long Island South Shore Estuary Reserve Program, Long Island Sound Partnership, Peconic Estuary Partnership, NYSDEC Seagrass Management Program

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YMin: 4955305.435199997
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Spatial Reference: 102100  (3857)

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Fields:

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