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Habitats or features with areas smaller than the MMU or minimum mapping unit (100 m2) were not considered. \"Unclassified\" denotes that an estimate of percent hardbottom is not appropriate for this particular structure class (e.g., for Land polygons). \"Unknown\" indicates that the amount of hardbottom was indistinguishable in the aerial orthophotos or LiDAR imagery due to interference with the signature of the seafloor.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 }, "copyrightText": "NOAA/NOS/NCCOS/MSE/Biogeography Branch", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "P_HARD", "uniqueValueInfos": [ { "symbol": { "type": 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