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Layer: Eelgrass 2010 (ID: 2)

Name: Eelgrass 2010

Display Field: location

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Maine's eelgrass meadows form an important marine and estuarine coastal aquatic habitat for the state. Along with other plants, eelgrass forms the base of food production in the sea. Eelgrass provides shelter for juvenile fish, and invertebrates, is a site for primary settlement of the larvae of some bivalve mollusks, and in certain locations helps to stabilize unconsolidated sediments and shorelines. Between the years 2001 and 2010, sections of the coast were flown and photographed using Kodak 2448 and 2427 film at a scale of 1:12000. Areas in the present study, were flown in the months of June though September during the 2001 to 2010 time period. When possible, photography was at the time of extreme low tides, low wind velocity, good water clarity, and maximum biomass of eelgrass. These factors aid in the detection of the subtidal portion a bed. Polygons delineating stands of eelgrass were screen digitized and coded using a four category scale of percent cover. Verification was carried out by boat, on foot, and by plane. Though dense patches of eelgrass approximately 6 meters in diameter and less can be identified under good conditions and in some cases were mapped, a conservative estimate of the minimum mapping unit is 150 square meters. This represents a stand of approximately 14 meters in diameter.

Definition Expression: N/A

Copyright Text: This data was produced by the Maine Department of Marine Resouces, Bureau of Resource Management. Credit should always be given to the data source and/or originator when the data is transferred or printed.

Default Visibility: true

MaxRecordCount: 5000

Supported Query Formats: JSON, AMF, geoJSON

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Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

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