Benthic habitat map of Faga'alu Bay, Tutuila, American Samoa

A benthic habitat polygon coverage has been created of the coral reef ecosystem within the U.S. Coral Reef Task Force Watershed Partnership Initiative Faga'alu Bay priority study area, Tutuila, American Samoa. Polygons were hand-digitized from visual interpretation of WorldView-2 satellite imagery and satellite-derived pseudobathymetry. We also utilized in situ knowledge from underwater photography and videography.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

An attribute accuracy assessment was performed using third-party interpreted frame-grab stills from underwater video. The stills that were used for the accuracy assessment were not used for the initial interpretation. Where these data are used in combination with other data of different resolution, the resolution of the combined output will be limited by the lowest resolution of all the data. See accompanying report for complete details.

Logical_Consistency_Report: No formal logical accuracy tests were conducted.
Completeness_Report:

Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A formal accuracy assessment of the horizontal positional information in the data set has not been conducted.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: DigitalGlobe
Publication_Date: 20131104
Title: WorldView-2 satellite imagery
Geospatial_Data_Presentation_Form: Raster Digital Data Set
Publication_Information:

Publication_Place: online
Publisher: DigitalGlobe

Online_Linkage: http://evwhs.digitalglobe.com

Type_of_Source_Media: Digital and/or Hardcopy Resources
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20131104

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: WV2
Source_Contribution:

WorldView-2 satellite imagery was used as a base layer to begin drawing polygons for benthic habitat interpretation. 0.60-m-resolution GeoTiff downloaded on 25 Feb 2014.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Pacific Islands Benthic Habitat Mapping Center (PIBHMC)
Publication_Date: 20090807
Title: Satellite-derived pseudobathymetry
Geospatial_Data_Presentation_Form: Raster Digital Data Set
Publication_Information:

Publication_Place: online
Publisher: Pacific Islands Benthic Habitat Mapping Center (PIBHMC)

Online_Linkage:

http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tutuila_bathy.htm

Type_of_Source_Media: Digital and/or Hardcopy Resources
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20090807

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Satellite-derived pseudobathymetry
Source_Contribution:

Satellite-derived pseudobathymetry for Tutuila island from the Pacific Islands Benthic Habitat Mapping Center (PIBHMC) was used as a base layer to assist with benthic habitat interpretation. 5-m-resolution gridded data downloaded 25 Feb 2014.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Gibbs, A.E.
Originator: D'Antonio, N.L.
Publication_Date: 2016
Title:

Underwater video footage, March 2014, Faga'alu Bay, Tutuila Island, American Samoa

Geospatial_Data_Presentation_Form: digital video
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F70V89V6

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F70V89V6

Type_of_Source_Media: Digital video
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20140304
Ending_Date: 20140308

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Underwater video footage
Source_Contribution:

Underwater video footage was used to assist in benthic habitat interpretation.

Source_Information:

Source_Citation:

Citation_Information:

Originator: D'Antonio, N.L.
Originator: Gibbs, A.E.
Publication_Date: 2016
Title:

Still-image frame grabs and benthic habitat interpretation of underwater video footage, March 2014, Faga'alu Bay, Tutuila Island, American Samoa

Geospatial_Data_Presentation_Form: digital video
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7N877V1

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7N877V1

Type_of_Source_Media: Digital images
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2014
Ending_Date: 20140308

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Still-image frame grabs from underwater video footage
Source_Contribution:

still-images were used to assist in benthic habitat interpretation. A subset of still frame-grab images, interpreted by a third party, were set aside to be used for the accuracy assessment.

Source_Information:

Source_Citation:

Citation_Information:

Originator: National Oceanic and Atmospheric Administration (NOAA)
Publication_Date: 20120802
Title: ArcGIS - Habitat Digitizer Extension (ArcGIS 10.0)
Geospatial_Data_Presentation_Form: Computer Program
Publication_Information:

Publication_Place: Redlands, CA
Publisher: Esri

Online_Linkage:

http://www.arcgis.com/home/item.html?id=aaa88d03d6cd499db77f663bdcb77173

Type_of_Source_Media: Software
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20120802

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Habitat-digitizing extension v.10.0
Source_Contribution:

Habitat digitizer extension v.10.0 (downloaded 23 Aug 2012) was used in ArcGIS v.10.3 as a tool to assist with digitizing polygons and assigning attributes. See accompanying report for complete details.

Process_Step:

Process_Description:

The benthic maps were digitized using a heads-up digitizing method. A minimum mapping unit of 100 square meters was using with the exception of smaller features carrying unique habitat significance (for example, an individual coral colony 2 m in diameter in an otherwise uncolonized area) or when caused by subdividing a habitat polygon that traversed more than one geographic zone. As input to guide the digitizing, the following datasets were used: WorldView-2 imagery, pseudobathymetry, video and stills. The draft map was created and randomly selected still images (independently classified) that were not used as part of the interpretation were used to assess the accuracy of the polygons. Any necessary corrections were made to the mapped polygons, and the final interpretation was created.

Source_Used_Citation_Abbreviation:

All Source Contributions listed in the Lineage section of the metadata file were used in the interpretation of the benthic map polygons.

Process_Date: 20151201

Process_Step:

Process_Description:

A field for Area was added to the polygon shapefile attribute table and populated using the Calculate Geometry tool in ArcGIS based on the projection.

Process_Date: 20151203

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: FagaaluBHabs
Entity_Type_Definition:

Table containing attribute information associated with the dataset.

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: UNIQUEID
Attribute_Definition:

A four-digit code that represents the combination of the individual habitat components where the first digit represents the major structure (M_STRUCT); the second digit represents the dominant structure (D_STRUCT); the third digit represents the major biologic cover (M_COVER); and the fourth digit represents the percent of biologic cover (P_COVER). Each of these attributes has a text value that is also represented by a numeric value, so that the UNIQUEID is a compilation of the numerical values. See accompanying Open-File Report for complete details.

Attribute_Definition_Source: Habitat classification scheme
Attribute_Domain_Values:

Unrepresentable_Domain:

Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories

Attribute:

Attribute_Label: M_STRUCT
Attribute_Definition:

Major structure or underlying substrate within the defined polygon. This is represented by the numeric code found in the 1st number position of the UNIQUEID. Not all of the following Major structure components exist within this particular dataset.

Attribute_Definition_Source:

Scientist. Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unconsolidated sediment
Enumerated_Domain_Value_Definition: This is represented by 1 in the 1st number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Reef and hardbottom
Enumerated_Domain_Value_Definition: This is represented by 2 in the 1st number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Other
Enumerated_Domain_Value_Definition: This is represented by 3 in the 1st number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition: This is represented by 9 in the 1st number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: D_STRUCT
Attribute_Definition:

Dominant structure within the defined polygon. This is represented by the numeric code found in the 2nd number position of the UNIQUEID. There is a relationship between the Dominant structure and the Major structure. The text value of Unknown is the only text value that can be found in more than one Major structure. In each instance, Unknown is also assigned a numeric value of zero as represented in the UNIQUEID. The remaining text values are unique and only associated with a single Major structure, however the numeric representation of the text value is duplicated. The numeric values of 1 and 2 are represented in the following Major structure classifications: Unconsolidated sediment (represented by a 1 in the 1st number position of the UNIQUEID); Reef and hardbottom (represented by a 2 in the 1st number position of the UNIQUEID); and Other (represented by a 3 in the 1st number position of the UNIQUEID). Not all of the following Dominant structure components exist within this particular dataset.

Attribute_Definition_Source:

Scientist. Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition: This is represented by 0 in the 2nd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Mud
Enumerated_Domain_Value_Definition:

Fine sediment often associated with stream discharge and buildup of organic material in areas sheltered from high-energy waves and currents (for example, harbors and fishponds). This is represented by 1 in the 2nd number of the UNIQUEID. This text value is only valid if the Major structure is Unconsolidated sediment (represented by a 1 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Sand
Enumerated_Domain_Value_Definition:

Coarse sediment typically found in areas exposed to currents or high wave energy (reef-derived) or on beaches (land-derived or reef-derived). This is represented by 2 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Unconsolidated sediment (represented by a 1 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Aggregate reef
Enumerated_Domain_Value_Definition:

Formations with high relief and complexity, which form an extensive reef structure without sand channels (as found in spur-and-groove). Note that aggregate reef refers to the underlying hard structure and implies nothing about the nature of the biological cover, nor whether it is live or dead. This is represented by 1 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Spur-and-groove
Enumerated_Domain_Value_Definition:

Elongate, alternating sand and coral formations that are oriented perpendicular to the shore or bank/shelf escarpment. The coral formations (spurs) of this feature typically have a high vertical relief relative to the pavement with sand channels class, and are separated from each other by 1Ð5 m of sand or bare pavement (grooves). There are no spur-and-groove formations found in this map area. This is represented by 2 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Individual patch reef
Enumerated_Domain_Value_Definition:

Coral formations, larger than or equal to the minimum mapping unit (MMU) (100 m2 in this study), that are isolated from other coral reef formations by sand, seagrass, or other habitats and that have no organized structural axis relative to the contours of the shore or shelf edge. This is represented by 3 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Aggregated patch reef
Enumerated_Domain_Value_Definition:

Clustered coral formations, smaller than the MMU (100 m2 in this study) or too close together to be mapped separately, that are isolated from other coral reef formations by sand, seagrass, or other habitats and that have no organized structural axis relative to the contours of the shore or shelf edge. This is represented by 4 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Scattered coral/rock
Enumerated_Domain_Value_Definition:

Pavement or sand with >10% small corals or rocks scattered on the surface. Usually found in a transition zone between pavement or sand and higher relief reef structures. This is represented by 5 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Pavement
Enumerated_Domain_Value_Definition:

Carbonate or volcanic substrate with <10% loose rocks or boulders scattered on the surface. Volcanic substrate may be smooth or irregular, depending on the original lava flow and subsequent erosion patterns. This is represented by 6 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Pavement with sand channels
Enumerated_Domain_Value_Definition:

Carbonate or volcanic substrate alternating with sand channels that are oriented perpendicular to the shore or bank/shelf escarpment. The sand channels have low vertical relief relative to spur-and-groove formations. This is represented by 7 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Rock/boulder (volcanic and carbonate)
Enumerated_Domain_Value_Definition:

Carbonate or volcanic substrate alternating with sand channels that are oriented perpendicular to the shore or bank/shelf escarpment. The sand channels have low vertical relief relative to spur-and-groove formations. This is represented by 8 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Reef rubble
Enumerated_Domain_Value_Definition:

Dead, unstable coral rubble, often covered with coralline algae or filamentous or other macroalgae. This is represented by 9 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Reef and hardbottom (represented by a 2 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Land
Enumerated_Domain_Value_Definition:

Area shoreward of the mean high water line, or landward edge of emergent vegetation, when present. Also may include offshore emergent features such as rock. This is represented by 1 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Other (represented by a 3 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Artificial
Enumerated_Domain_Value_Definition:

Manmade habitats such as large piers, submerged parts of riprap jetties, and shoreline areas created from dredge spoil. This is represented by 2 in the 2nd number in the UNIQUEID. This text value is only valid if the Major structure is Other (represented by a 3 in the 1st number of the UNIQUEID).

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: M_COVER
Attribute_Definition:

Major biologic cover within the defined polygon. Not all of the following Major biologic cover components exist within this particular dataset.

Attribute_Definition_Source:

Scientist. Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition: This is represented by 0 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Uncolonized
Enumerated_Domain_Value_Definition: This is represented by 1 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Macroalgae
Enumerated_Domain_Value_Definition: This is represented by 2 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Seagrass
Enumerated_Domain_Value_Definition: This is represented by 3 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coralline algae
Enumerated_Domain_Value_Definition: This is represented by 4 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Coral
Enumerated_Domain_Value_Definition: This is represented by 5 in the 3rd number of the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Turf algae
Enumerated_Domain_Value_Definition: This is represented by 6 in the 3rd number in the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Emergent vegetation
Enumerated_Domain_Value_Definition: This is represented by 7 in the 3rd number in the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Octocoral
Enumerated_Domain_Value_Definition: This is represented by 8 in the 3rd number in the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: P_COVER
Attribute_Definition: Percent cover of major biologic cover.
Attribute_Definition_Source:

Scientist. The attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition: This is represented by 0 in the 4th number in the UNIQUEID.
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10-<50%
Enumerated_Domain_Value_Definition: This is represented by 2 in the 4th number in the UNIQUEID
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 50-<90%
Enumerated_Domain_Value_Definition: This is represented by 3 in the 4th number in the UNIQUEID
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 90-100%
Enumerated_Domain_Value_Definition: This is represented by 4 in the 4th number in the UNIQUEID
Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: REEF_ZONE
Attribute_Definition:

Location of a habitat community in the coral reef ecosystem. This does not indicate the substrate or biologic cover type. Not all of the following components exist within this particular dataset.

Attribute_Definition_Source:

Scientist. Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Land
Enumerated_Domain_Value_Definition:

Area shoreward of the mean high water line, or landward edge of emergent vegetation, when present. Also may include offshore emergent features such as rock.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Shoreline/Intertidal
Enumerated_Domain_Value_Definition:

Area between the mean high water line (or landward edge of emergent vegetation) and lowest spring tide level. Typical habitats include mangrove and other emergent vegetation, sand, mud, and uncolonized rock.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Wall
Enumerated_Domain_Value_Definition:

Area with near-vertical slope along channels, from shelf to shelf escarpment, or between different inner-shelf platforms. This zone typically is narrow and may not be visible in remotely sensed imagery, but is included because it is recognized as a biologically important feature. Typical habitats include coral, algae, and uncolonized rock.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Lagoon
Enumerated_Domain_Value_Definition:

Shallow area between the shoreline/intertidal zone and the back reef zone of a barrier reef system. If no reef crest is present, there is no lagoon zone. Typical habitats include individual patch reefs, sand, seagrass, algae, and pavement.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Back reef (with lagoon)
Enumerated_Domain_Value_Definition:

Area between the seaward edge of a lagoon floor and the landward edge of a reef crest. This zone is present only when a reef crest and lagoon also are present. Typical habitats include sand, coral rubble, seagrass, algae, and patch reefs.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Reef Flat
Enumerated_Domain_Value_Definition:

Without lagoon. Shallow, semi-exposed area between the shoreline/intertidal zone and the reef crest of a fringing reef system. This zone is protected from the high-energy waves commonly experienced on the reef crest and fore reef. The reef flat is not present if there is a lagoon. Typical habitats include sand, reef rubble, pavement, algae, mud, and patch reefs.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Reef Crest
Enumerated_Domain_Value_Definition:

Flattened, emergent (especially during low tides) or nearly emergent segment of a reef, usually where the waves break. This zone is between the back reef and fore reef zones of a barrier reef system, and between the reef flat and fore reef of a fringing system. Typical habitats include reef rubble, patch reefs, and aggregate reefs.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Fore Reef
Enumerated_Domain_Value_Definition:

Area from the seaward edge of the reef crest that slopes into deeper water to the landward edge of the bank/shelf platform. Fore reef is also defined as features not forming an emergent reef crest but still having a seaward-facing slope that is markedly greater than the slope of the bank/shelf. Typical habitats include aggregate coral reef and spur-and-groove.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Bank/Shelf
Enumerated_Domain_Value_Definition:

A deep-water platform extending offshore from the seaward edge of the fore reef to the beginning of the escarpment where the insular shelf drops off into deep, oceanic water. If no reef crest is present, the bank/shelf is the flattened platform between the shoreline/intertidal zone and deeper ocean offshore. Typical habitats include sand, patch reefs, algae, colonized and uncolonized pavement with and without sand channels, and other coral habitats.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Bank/shelf escarpment
Enumerated_Domain_Value_Definition:

The edge of the bank/shelf where depth increases rapidly into deep, oceanic water. This zone begins in water depths of about 20Ð30 m, near the depth limit of features visible in aerial images. This zone captures the transition from the shelf to deep oceanic waters. Typical habitats include sand, aggregate reef, and spur-and-groove.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Channel
Enumerated_Domain_Value_Definition:

Naturally occurring channels that often cut across several other zones. Typical habitats include sand, mud, and uncolonized pavement.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Dredged
Enumerated_Domain_Value_Definition:

Area in which natural geomorphology is disrupted by excavation or dredging (for example, harbors and manmade channels). Typical habitats include reef rubble, sand, and mud.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological Survey Scientist. Modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: ZONE
Attribute_Definition: Geographic reef zone
Attribute_Definition_Source: U.S. Geological Survey Scientist
Attribute_Domain_Values:

Unrepresentable_Domain:

Attributes are modified from NOAA/NOS benthic habitat mapping classification scheme of the U.S. Pacific Territories.

Attribute:

Attribute_Label: AREA_M2
Attribute_Definition: Polygon area in meters squared (based on WGS 1984 UTM Zone 2S)
Attribute_Definition_Source: Software calculated (Esri)
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.741
Range_Domain_Maximum: 403056.607
Attribute_Units_of_Measure: square meters

Overview_Description:

Entity_and_Attribute_Overview:

The entity and attribute information provided here describes the tabular data associated with the dataset. For additional details regarding the attribute information, please see the larger work citation.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Ð Susan Cochran.

Benthic habitat map of Faga'alu Bay, Tutuila, American Samoa

Metadata: