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Service Description: This is a legacy on-premise service that exists solely to support a single application requiring map services vs hosted feature services. External users are encouraged to utilize the ArcGIS Online Hosted Feature Services providing these same layers, which can be found on the MaineDMR Open Data Site, http://dmr-maine.opendata.arcgis.com/
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 1992 and 2013, various regions of the coast were flown and photographed. Photography was timed near low tides with 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.
Map Name: Layers
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Layers:
Description:
Service Item Id: a7737641219046c29b8f783995d96e09
Copyright Text: MaineDMR, MaineDEP
Spatial Reference:
26919
(26919)
Single Fused Map Cache: false
Initial Extent:
XMin: 405874.40591234074
YMin: 4843157.8603756195
XMax: 434687.5885387076
YMax: 4857418.930564427
Spatial Reference: 26919
(26919)
Full Extent:
XMin: NaN
YMin: NaN
XMax: NaN
YMax: NaN
Spatial Reference: 26919
(26919)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: MaineDMR Submerged Aquatic Vegetation
Author: MaineDMR, MaineDEP
Comments: 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 1992 and 2013, various regions of the coast were flown and photographed. Photography was timed near low tides with 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.
Subject: MaineDMR SAV data, including historic eelgrass surveys.
Category:
Keywords: MaineDMR,MaineDEP,MaineGIS,Maine,eelgrass,submerged aquatic vegetation,rockweed
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
Resampling: false
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON
Supports Query Data Elements:
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
Info
Dynamic Layer
Supported Operations:
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Identify
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Return Updates
Generate KML