Inventory of Intertidal Habitats national park area created with Trimble GeoExplorer III GPS Units Developed in 2001, 2002 and 2003

Table of Contents



IDENTIFICATION_INFORMATION

Citation: Citation_Information: Originator: Richard Bell New England Aquarium Doc Edgerton Lab Publication_Date: 20030630 Title: Inventory of Intertidal Habitats national park area created with Trimble GeoExplorer III GPS Units Developed in 2001, 2002 and 2003 Edition: one Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Boston, MA USA Publisher: National Park Service, Boston Harbor Islands national park area Other_Citation_Details: Online_Linkage: HTTP://www.bostonislands.org/manage/manage_opps_rsrch.html#scientific Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Description: Abstract: The complete intertidal of twenty-one islands in Boston Harbor was delinated by assemblage and substrate type using the Boston Harbor Intertidal Classification System (BHICS). Individual polygons were created by walking the perimeter of every assemblage and substrate present with a Trimble GeoExplorer III GPS unit at zero or negitive low tide. All information was compiled into a single theme with an extensive attribute table. Thirty-one assemblages types and thirteen substrates types were found on the twenty-one islands surveyed. Purpose: To provide a baseline survey of all intertidal assemblages and substrates on twenty-one islands in Boston Harbor by which to measure change caused by natural or arthropogenic events. Supplemental_Information: Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010413 Ending_Date: 20030630 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.0192 East_Bounding_Coordinate: -70.8670 North_Bounding_Coordinate: 42.3445 South_Bounding_Coordinate: 42.2531 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Intertidal Theme_Keyword: Assemblage Theme_Keyword: Substrate Theme_Keyword: GIS Theme_Keyword: GPS Theme_Keyword: Classification Theme_Keyword: National Park Theme_Keyword: Diagnostic organism Theme_Keyword: Common organism Theme_Keyword: Marine Theme_Keyword: Estuarine Theme_Keyword: Marsh Theme_Keyword: Rocky Intertidal Theme_Keyword: Community Place: Place_Keyword_Thesaurus: None Place_Keyword: Boston Harbor Place_Keyword: Boston Harbor islands Place_Keyword: Bumpkin Place_Keyword: Calf Place_Keyword: Gallops Place_Keyword: George Place_Keyword: Grape Place_Keyword: Great Brewster Place_Keyword: Hangman Place_Keyword: Langlee Place_Keyword: Little Brewter Place_Keyword: Long Place_Keyword: Lovell Place_Keyword: Outer Brewter Place_Keyword: Peddock Place_Keyword: Raccoon Place_Keyword: Rainsford Place_Keyword: Sheep Place_Keyword: Slate Place_Keyword: Snake Place_Keyword: Spectacle Place_Keyword: Thompson Place_Keyword: Weir River Place_Keyword: World's End Place_Keyword: Hingham Harbor Place_Keyword: Hingham Bay Place_Keyword: Quincy Bay Access_Constraints: Use_Constraints: Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service Contact_Person: Bruce Jacobson Contact_Position: Park Manager Contact_Address: Address_Type: mailing and physical address Address: 408 Atlantic Avenue Room 228 City: Boston State_or_Province: MA Postal_Code: 02110-3349 Country: USA Contact_Voice_Telephone: 617-223-8669 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: bruce_jacobson@nps.gov Hours_of_Service: 8:30 am - 4:30 pm Native_Data_Set_Environment: ArcView version 3.2 shapefile format c:\my documents\gis\bhi_intertidal\island_shapefiles\all islands utm\bhi intertidal.shp Top

DATA_QUALITY_INFORMATION

Attribute_Accuracy: Attribute_Accuracy_Report: All polygons were individually walked with a differential GPS. All attributes percentages were visual estimates of cover. Substrate attributes were estimates of the percent of the total cover within a polygon. Assemblage attributes were estimates of the percent cover of the biotic cover within a polygon. Logical_Consistency_Report: Field data was collected during 2001-2003 field seasons by several different individuals. Test were performed to ensure that there was good consistency and reliability between collectors. Completeness_Report: The entire intertidal from spring extreme high water to spring extreme low water was mapped by substrate and assemblage type on twenty-one islands in Boston Harbor. Substrate attributes are visual estimates of the percent of the cover within a polygon. Assemblage attributes are visual estimates of the percent cover of the biotic cover within a polygon. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: All polygons were individually walked with a differential GPS. Max PDOP value was 5.0 and min satellite angle was 15 degrees. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: All polygons were individually walked with a differential GPS. Max PDOP value was 5.0 and min satellite angle was 15 degrees. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Richard Bell New England Aquarium Doc Edgarton Lab Publication_Date: 20030630 Title: Inventory of Intertidal Habitats: Boston Harbor Islands, a national park area created with Trimble GeoExplorer III GPS Units Developed in 2001, 2002 and 2003 Edition: One Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Boston, MA USA Publisher: National Park Service, Boston Harbor Islands national park area Other_Citation_Details: Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Publication_Date: Title: Publication_Information: Publication_Place: Publisher: Online_Linkage: Source_Scale_Denominator: Type_of_Source_Media: Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: Ending_Date: Source_Currentness_Reference: Source_Citation_Abbreviation: Source_Contribution: Source_Information: Source_Citation: Source_Scale_Denominator: Type_of_Source_Media: Map Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010413 Ending_Date: 20030630 Source_Currentness_Reference: Source_Citation_Abbreviation: Source_Contribution: Source_Citation: Process_Step: Process_Description: Polygons were created by walking the perimeter of discrete assemblages and substrates with a Trimble GeoExplorer III GPS unit. The rover files from the GeoExplorer III were uploaded into a computer via Pathfinder Office 2.51. Rover files were corrected with base files from base stations in Woburn, MA, Yarmouth, ME and the University of Rhode Island (Kingston, RI) and the corrected files were edited in Pathfinder Office 2.51 to remove loops. The corrected edited files were exported to ArcView 3.2 where all abutting polygons were snapped together. The final product was projected to adhere to NPS guidelines: UTM, zone 19, NAD 83, meters. Source_Used_Citation_Abbreviation: Process_Date: 20030630 Source_Produced_Citation_Abbreviation: Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization: New England Aquarium Doc Edgerton Lab Contact_Person: Richard Bell Contact_Position: Contact_Address: Address_Type: mailing and physical address Address: Central Wharf City: Boston State_or_Province: MA Postal_Code: 02110 Country: USA Contact_Voice_Telephone: 617-973-5274 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: rbell@neaq.org Hours_of_Service: Top

SPATIAL_DATA_ORGANIZATION_INFORMATION

Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 1247 Top

SPATIAL_REFERENCE_INFORMATION

Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -69.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Coordinate pair Coordinate_Representation: Abscissa_Resolution: Ordinate_Resolution: Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137.0000000 Denominator_of_Flattening_Ratio: 298.26 Top

ENTITY_AND_ATTRIBUTE_INFORMATION

Detailed_Description: Entity_Type: Entity_Type_Label: Bhi intertidal Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: None Attribute: Attribute_Label: Perimeter Attribute_Definition: Perimeter of polygon Attribute_Definition_Source: Software generated Attribute_Domain_Values: Unrepresentable_Domain: Software computed Attribute: Attribute_Label: Area Attribute_Definition: Area of polygon Attribute_Definition_Source: Software generated Attribute_Domain_Values: Unrepresentable_Domain: Software computed Attribute: Attribute_Label: Substrate_ Attribute_Definition: Substrate which covers >75% of a given polygon Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: boulders Enumerated_Domain_Value_Definition: boulders > 256 mm (= 10") to 3 m diameter-, i.e., those large enough not to be rolled by moderate wave action. Boulders are also found associated with a variety of types of substrata from bedrock to mud. Any site with at least 75% boulders can be classified as boulder. In addition, a site with at least 50% cover of boulders is classified as boulder if at least 6% bedrock is also present. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: cobble Enumerated_Domain_Value_Definition: : Rocks <256 mm, but >64 mm (=2.51") diameter; unstable. Cobble beaches that are >75% of particles this size. Many will have cobble, but will be mixed coarse, as they are not sufficiently dominated by cobble. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Cultural Enumerated_Domain_Value_Definition: Tires, docks, washed up boats, bulkheads, logs, pilings (woods, or metal), oyster culture, and others. A site with at least 75% artificial materials is classified as cultural. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: gravel Enumerated_Domain_Value_Definition: Small rocks or pebbles 2 to 64 mm diameter. Habitats are deemed to have gravel substratum if 75% or more of the habitat bottom is gravel. This definition combines granules (2 to 4 mm) and pebbles (4 to 64 mm). Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed coarse Enumerated_Domain_Value_Definition: : Substrata consisting of rocks, boulders, cobbles, gravel, shell, and sand (no one substratum type exceeding 75% surface cover, less than 50% cover by rocks or boulders). Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed coarse & fine Enumerated_Domain_Value_Definition: Consisting of rocks, boulders, and coarse and fine particles. No one substratum type exceeding 75% surface cover and less than 50% cover by rocks or boulders. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mud Enumerated_Domain_Value_Definition: Fine substrata <0.06 mm, usually mixed with organic matter. If a site has at least 75% surface cover of mud, it is classified as mud. Mud includes both silt (3.9 to 62.5 micrometers) and clay (< 3.9 micrometers). Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: peat Enumerated_Domain_Value_Definition: Substrata composed primarily of organic matter such as peat, sawdust, wood chips, leaf litter, other detritus. Peat was found with such frequency that is was incorporated as its own substrate Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Reef Enumerated_Domain_Value_Definition: Carbonate mound-like features, e.g. oyster and mussel bars. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: rock Enumerated_Domain_Value_Definition: Bedrock > 3 m diameter, can be various types of consolidated rock. It constitutes a major component of New England's coastline north of Boston Harbor. Rock often has other materials overlying it or is found in conjunction with other types of substrata. Therefore, one can classify an area as rock if it has at least 50% cover of bedrock. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: sand Enumerated_Domain_Value_Definition: Sediment particles ranging between 0.06-2 mm in diameter. Habitat is classified as sand if 75% or more of the surface cover is sand. This definition combines very coarse sand (1.0 to 2.0 mm), coarse sand (0.5 to 1.0 mm), medium sand (0.25 to 0.5 mm), fine sand (0.125 to 0.25 mm) and very fine sand (0. 0625 to 0. 125 mm). Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: shells Enumerated_Domain_Value_Definition: Sediment consisting of >75% shells. Typically composed of Mytilus and Mya shells near reefs or mudflats Enumerated_Domain_Value_Definition_Source: BHICS Attribute: Attribute_Label: Assemblage Attribute_Definition: Assemblage which is >75% of the biotic cover of a given polygon Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ascophyllum Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Ascophyllum nodosum cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: black zone Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Black Lichen (Verrucaria sp. usually V. maura) and blue-green bacteria cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: brown algae Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Ascophyllum nodosum and Fucus sp. cover >75% of the total biota, but no single species occupies > 75 % of the vegetated cover Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: creek Enumerated_Domain_Value_Definition: areas with continuous running water that drains the tidal waters of coastal salt marshes or wetlands - bottom of creek is permanently flooded, banks are exposed at low tide. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Fucus Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Fucus sp. cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: green algae Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Green Algae that is not Blidingia minima cover >75% of the total biota. All the other areas of green algae were mapped under the same category though different assemblages were present. This group could be broken up into different assemblages in future monitoring efforts. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: green crust Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Green Crust cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: high intertidal green algae Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Blidingia minima or a combination of Blidingia, Semibalanus, and Black lichen cover >75% of the total biota. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: high marsh Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with two or more of the following: Limonium carolinianum, Suaeda linearis, Salicornia europaea, Atriplex patula, Distichlis spicata, Juncus gerardii, Spartina patens, Spartina alterniflora, Phragmites australis covering >75% of the total biota, but no single species >75%. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Iva Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Iva cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mix brown/Semibalanus reef Enumerated_Domain_Value_Definition: Biota covers > 30 % of an area, but no single taxa covers >75% of the total biota. Mixed Brown/Semibalanus Assemblage interspersed throughout a mixed Coarse Mytilus reef. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed brown/Mytilus Enumerated_Domain_Value_Definition: Mytilus reef (see above) with >50% of reef covered with Fucus vesiculosis forma mytilii Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed brown/Semibalanus Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Semibalanus and mixed brown (Ascophyllum and/or Fucus) cover >75% of the total biota, but no single species occupies > 75 % of the cover Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed brown/Semibalanus/green algae Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Fucus, Ascophyllum, Semibalanus and green algae (most often Blidingia) cover >75% of the total biota, but no single species occupies more than 75 % of the biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mixed C/reef: mixed Assemblage Enumerated_Domain_Value_Definition: Biota covers > 30 % of an area, but no single taxa covers >75% of the total biota. An area that contains two or more of the assemblages listed above: brown, red, green algae, Semibalanus, Mytilus, etc…; with distinct patches (mosaic) but no zonation and no clear boundaries between patches. Typically there is a great variety of algal species including Porphyra, Scytosyphion, Dumontia contorta. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: mudflat Enumerated_Domain_Value_Definition: Fine sediments were the least covered in this overview. This assemblage covers all areas classified as Mud or Mixed Coarse and Fine Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Mytilus reef Enumerated_Domain_Value_Definition: Solid substrate formed by Mytilus edulis and their shells creating a mounded structure on unconsolidated bottoms Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: No macro biota Enumerated_Domain_Value_Definition: Biota covers < 30 % of an area; remainder of substrate bare Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Other Enumerated_Domain_Value_Definition: OTHER covered all areas that were mapped, but were not in the initial classification system Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Phragmites Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Phragmites australis cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: red foliose algae Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Red Foliose Algae cover >75% of the total biota. (In practice this category was used only for Chondrus and Mastocarpus.) Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: rock/boul: mixed NO zonation Enumerated_Domain_Value_Definition: Biota covers > 30 % of an area, but no single taxa covers >75% of the total biota and the area lacks vertical zonation. The intertidal is a mosaic of different organisms growing in patches that were often stunted in form. In most cases this Assemblage covered the complete intertidal from the upper black zone to the lowest limit that could be safely attained. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Rock/boul: mixed zonation Enumerated_Domain_Value_Definition: Biota covers > 30 % of an area, but no single taxa covers >75% of the total biota and is organized with clear vertical zonation (i.e. with barnacles, followed by brown algae, followed by red algae) forming distinct vertical striations, typically along rock and boulder faces. In most cases this assemblage covered the complete intertidal from the upper black zone to the lowest limit that could be safely attained Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Salicornia Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Salicornia cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Salt tidepool Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: Semibalanus Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Semibalanus cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Spartina alterniflora Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Spartina alterniflora cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Spartina patens Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Spartina patens cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: Suaeda Enumerated_Domain_Value_Definition: Biota covers >30 % of an area with Suaeda linearis cover >75% of the total biota Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: tide pool Enumerated_Domain_Value_Definition: Areas of persistent standing water were mapped as Tide pools. This assemblage included a large range of organisms and could be broken up into different assemblages in future monitoring efforts. Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: transition zone Enumerated_Domain_Value_Definition: The area below the No Macro Biota zone where the biota starts to take hold on mixed coarse beaches. There are no clear assemblages, but simply scattered individuals, crusts and lichen. The upper limit is defined as the point where life first begins to take hold in the upper intertidal. The lower boundary is usually defined by whatever recognizable assemblage occurs below it or if none is present, the subtidal itself Enumerated_Domain_Value_Definition_Source: BHICS Attribute: Attribute_Label: Rock Attribute_Definition: Percent cover of Rock Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: BHICS Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Boulder Attribute_Definition: Percent cover of boulder Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Cobble Attribute_Definition: Percent cover of cobble Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Gravel Attribute_Definition: Percent cover of gravel Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Shells Attribute_Definition: Percent cover of shells Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Sand Attribute_Definition: Percent cover of sand Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Mud Attribute_Definition: Percent cover of mud Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Peat Attribute_Definition: Percent cover of peat Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Cultural_hard Attribute_Definition: Percent cover of Cultural hard Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Tide_pool Attribute_Definition: Height of Tide pool Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: high intertidal Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: low-intertidal Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: mid-intertidal Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: None Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: No_macrobiota Attribute_Definition: Percent cover of no macro biota Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Ascophyllum Attribute_Definition: Percent biotic cover of Ascophyllum Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Fucus Attribute_Definition: Percent biotic cover of Fucus Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Other_brown Attribute_Definition: Percent biotic cover of non Fucus, Ascophyllum, Kelp, brown algae Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Other_algae Attribute_Definition: Percent biotic cover of algae not listed in data dictionary Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Semibalanus Attribute_Definition: Percent biotic cover of Semibalanus Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Mytilus Attribute_Definition: Percent biotic cover of non reef Mytilus Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Mytilus_reef Attribute_Definition: Percent biotic cover of Mytilus reef Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Green_algae Attribute_Definition: Percent biotic cover of green algae Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Red_foliose Attribute_Definition: Percent biotic cover of red foliose algae Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Red_encrusting Attribute_Definition: Percent biotic cover of red encrusting algae Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Kelp Attribute_Definition: Percent biotic cover of kelp Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Spartina_alterniflora Attribute_Definition: Percent biotic cover of Spartina alterniflora Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Spartina_patens Attribute_Definition: Percent biotic cover of Spartina patens Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Phragmites Attribute_Definition: Percent biotic cover of Phragmites Attribute_Definition_Source: BHISC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Typha_angu Attribute_Definition: Percent biotic cover of Typha Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Salicornia Attribute_Definition: Percent biotic cover of Salicornia Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Juncus Attribute_Definition: Percent biotic cover of Juncus Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Littorina Attribute_Definition: Density of Littorina Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <5 in polygon Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: >10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: always <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: locally more <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Ilyanassia Attribute_Definition: Density of Ilyanassia Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <5 in polygon Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: >10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: always <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: locally more <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Geukensia Attribute_Definition: Density of Geukensia Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <5 in polygon Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: >10/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: always <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: locally more <1/m2 Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Slope Attribute_Definition: Average degree of slope over the entire polygon Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 15-45 degrees Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 2-5 degrees Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 45-70 degrees Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-15 degrees Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 90 degrees/cliff Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <2 degrees Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Other Attribute_Definition: Percent cover of Other attributes not in the data dictionary Attribute_Definition_Source: BHICS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 0% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 1-5% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 26-50% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 51-75% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 6-25% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: 76-100% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Enumerated_Domain_Value: <1% Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Notes Attribute_Definition: Notes field Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Character Field Attribute: Attribute_Label: Date Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: Software generated Attribute: Attribute_Label: Time Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Max_pdop Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Corr_type Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Rcvr_type Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Gps_date Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Update_sta Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Avg_vert_p Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Hectares Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Attribute: Attribute_Label: Acres Attribute_Definition: Attribute_Definition_Source: Attribute_Domain_Values: Unrepresentable_Domain: software generated Overview_Description: Entity_and_Attribute_Overview: Entity_and_Attribute_Detail_Citation: Top

DISTRIBUTION_INFORMATION

Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service Contact_Person: Bruce Jacobson Contact_Position: Park Manager Contact_Address: Address_Type: mailing and physical address Address: 408 Atlantic Avenue Room 228 City: Boston State_or_Province: MA Postal_Code: 02110-3349 Country: USA Contact_Voice_Telephone: 617-223-8669 Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: bruce_jacobson@nps.gov Hours_of_Service: 8:30 am - 4:30 pm Resource_Description: Intertidal classification of twenty-one islands in Boston Harbor. Distribution_Liability: The National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics ("GIF" format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an NPS server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. These data should not be distributed. Distribution is governed by the MassGIS license agreement. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: Compatibility_Information: Fees: Ordering_Instructions: Top

METADATA_REFERENCE_INFORMATION

Metadata_Date: 20030630 Metadata_Review_Date: Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: New England Aquarium Doc Edgerton Lab Contact_Person: Richard Bell Contact_Position: Contact_Address: Address_Type: Mailing and physical address Address: Central Wharf City: Boston State_or_Province: MA Postal_Code: 02110 Country: USA Contact_Voice_Telephone: Contact_Facsimile_Telephone: Contact_Electronic_Mail_Address: Hours_of_Service: Metadata_Standard_Name: FGDC CSDGM Metadata_Standard_Version: FGDC-STD-001-1998 Top