CRED REA Line Point Intercept Surveys of Benthic Parameter Assessments at Johnston Atoll, Pacific Remote Island Areas (PRIAs) in 2010
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Publication_Date: 20120129
- Title:
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CRED REA Line Point Intercept Surveys of Benthic Parameter Assessments at Johnston Atoll, Pacific Remote Island Areas (PRIAs) in 2010
- Geospatial_Data_Presentation_Form: spreadsheet
- Online_Linkage:
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https://www.fisheries.noaa.gov/pacific-islands/ecosystems/coral-reefs-pacific
- Description:
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- Abstract:
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To support a long-term NOAA Coral Reef Conservation Program (CRCP) for sustainable management and conservation of coral reef ecosystems, from 24-29 January 2010, line point intercept (LPI) surveys of benthic parameter assessments were conducted, as a part of Rapid Ecological Assessments (REA), during the Pacific Reef Assessment and Monitoring Program (RAMP) Cruise HI1001 in the Pacific Remote Island Areas at biennial intervals by the Coral Reef Ecosystem Division (CRED) at the NOAA Pacific Islands Fisheries Science Center (PIFSC). During the cruise, 16 REA sites were surveyed at Johnston Atoll in the Pacific Remote Island Areas.
Benthic biologists from NOAA's Coral Reef Ecosystem Division conducted Line Point Intercept surveys to quantitatively document the benthic cover at pre-determined long-term monitoring REA sites. Two linear 25M transects were surveyed with a 5M inter-transect region between the end of Transect 1 and the start of Transect 2. The LPI diver determines the benthic composition at 20cm intervals for a total of 125 data points per transect. All living benthic elements (e.g., coral, algae, and other invertebrates) were identified to the lowest taxonomic level possible, often substituting functional group categories for turf algae and crustose coralline algae when identification in the field was extremely difficult. In cases where the substrate is bare or covered with turf algae, the substrate composition is also noted as either sand, rock, rubble, carbonate pavement, or dead coral.
These data allow for the assessment and monitoring of species composition and abundance and provide the basis for computing quantitative estimates of percent cover at higher taxonomic levels like functional group (live Coral, macroalgae, turf algae) or on a finer taxonomic resolution such as genus level.
- Purpose:
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Part of a long-term monitoring program at biennial intervals which documents the state of the reefs.
- Supplemental_Information:
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Maximum depth was 17 meters.
Benthic cover parameters observed:
Year Region Island BenthicName
2010 PRIAs Johnston Dead/Turf algae
2010 PRIAs Johnston crustose coralline red algae
2010 PRIAs Johnston Montipora sp
2010 PRIAs Johnston Acropora cytherea
2010 PRIAs Johnston Sand
2010 PRIAs Johnston Lobophora variegata
2010 PRIAs Johnston Pavement/Turf
2010 PRIAs Johnston Halimeda taenicola
2010 PRIAs Johnston Rubble/turfalgae
2010 PRIAs Johnston Millepora sp
2010 PRIAs Johnston Caulerpa racemosa
2010 PRIAs Johnston Acropora sp
2010 PRIAs Johnston Caulerpa serrulata
2010 PRIAs Johnston Pocillopora sp
2010 PRIAs Johnston Pavona sp
2010 PRIAs Johnston Cyanobacteria
2010 PRIAs Johnston Montipora incrassata
2010 PRIAs Johnston Montipora capitata
2010 PRIAs Johnston Porites sp
2010 PRIAs Johnston Sand/turf
2010 PRIAs Johnston Palythoa sp
2010 PRIAs Johnston Sinularia sp
2010 PRIAs Johnston Dictyota sp
2010 PRIAs Johnston Pavona varians
2010 PRIAs Johnston Pocillopora eydouxi
2010 PRIAs Johnston Dictyosphaeria versluysii
2010 PRIAs Johnston Neomeris sp
2010 PRIAs Johnston Ventricaria ventricosa
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20100124
- Ending_Date: 20100129
- Currentness_Reference: Ground condition
- Status:
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- Progress: In Work
- Maintenance_and_Update_Frequency: asNeeded
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -169.571385
- East_Bounding_Coordinate: -169.33355
- North_Bounding_Coordinate: 16.803112
- South_Bounding_Coordinate: 16.642373
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
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- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
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Pacific Reef Assessment and Monitoring Program (Pacific RAMP): Biennial monitoring for the U.S. Pacific Islands and Atolls
- Theme_Keyword: 1221
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Marine Ecosystem
- Theme_Keyword: Reef Assessment and Monitoring Program (RAMP)
- Theme_Keyword: Rapid Ecological Assessments (REA)
- Theme_Keyword: Coral Reef Ecosystem
- Theme_Keyword: Benthic Cover
- Theme_Keyword: Pacific Remote Island Areas (PRIAs)
- Theme_Keyword: Johnston Atoll
- Theme_Keyword: HI1001
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral reef ecology
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Rapid assessment studies
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Numeric Data Sets > Biology
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: biota
- Theme_Keyword: 002
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Central Pacific
- Place_Keyword: Johnston Atoll
- Place:
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- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Johnston Atoll > Johnston Atoll (16N169W0001)
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Johnston Atoll (16N169W0001)
- Place:
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- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: PRIA
- Access_Constraints: Data are available two years following data collection date
- Use_Constraints:
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Please cite CRED when using the data. Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Data_Set_Credit:
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Cristi Richards, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Sciences Center, National Marine Fisheries Service, NOAA
- Security_Information:
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- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Native_Data_Set_Environment: Oracle
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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The benthic cover parameter observations were made by a single diver who is coral reef ecologist. The benthic cover assessment surveys are conducted one time per site per survey year; it is not replicated.
- Logical_Consistency_Report:
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The same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientist.
- Completeness_Report:
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The survey sites were selected to be representative of the dominant habitats at this reef system.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report: GPS unit
- Quantitative_Horizontal_Positional_Accuracy_Assessment:
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- Horizontal_Positional_Accuracy_Value: 1
- Horizontal_Positional_Accuracy_Explanation: Instrument parameters
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report: Dive computer and SCUBA depth gauge
- Quantitative_Vertical_Positional_Accuracy_Assessment:
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- Vertical_Positional_Accuracy_Value: 0.3
- Vertical_Positional_Accuracy_Explanation: Instrument parameters
- Lineage:
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- Process_Step:
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- Process_Description:
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REA surveys are investigations that provide a high degree of taxonomic resolution for coral, algae, and other macroinvertebrate communities. The majority of REA surveys were conducted along the forereef slopes of individual islands at depths between 10 and 20 m. However, additional habitats including lagoonal-type patch reef and offshore oceanic banks were surveyed when they existed.
During REA surveys, biological assessment teams follow highly structured protocols that are repeated at each REA site. Upon arrival at an REA site, divers entered the water and deployed two 25M transect lines which are shared with coral surveys that gather community structure, diversity, recruitment, and health status data. The sampling effort takes between 60 and 80 min to complete.
The selection of REA sites was made in close consultation with Coral Reef Advisory Group (CRAG) and local agencies. Factors considered during REA site selection included: (1) ensuring a range of sample sites representative of the benthic and reef fish habitats around each island; (2) selecting a mixture of sites within and outside of marine protected areas; (3) selecting a mixture of both 'impacted' and 'least impacted' sites; (4) selecting some sites adjacent to local villages, and (5) selecting a number of sites that could be compared to and complement previous assessment and monitoring work as well as future coral reef monitoring proposed by CRAG and local agencies. It is important to note that access to REA sites can be limited by wave exposure, weather conditions, and other environmental factors such as currents, which can affect the ability to resurvey sites between years.
Transect placement was guided by: (1) a focus on hard-bottom communities; (2) deploying lines along an isobath to the extent possible at each site, and (3) laying the transect lines into the prevailing current.
- Process_Date: Unknown
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 0.0001
- Longitude_Resolution: 0.0001
- Geographic_Coordinate_Units: Decimal Degrees
- Geodetic_Model:
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- Horizontal_Datum_Name: World Geodetic System 1984 (WGS84)
- Ellipsoid_Name: Geodetic Reference System 80 (GRS80)
- Semi-major_Axis: 6378137
- Denominator_of_Flattening_Ratio: 298.2572236
- Vertical_Coordinate_System_Definition:
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- Depth_System_Definition:
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- Depth_Datum_Name: Local surface
- Depth_Resolution: 1
- Depth_Distance_Units: meters
- Depth_Encoding_Method: Explicit Depth Coordinate Included with Horizontal Coordinates
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Resource_Description: Offline Data
- Distribution_Liability:
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While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: XLS (Microsoft Excel worksheet)
- Digital_Transfer_Option:
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- Offline_Option:
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- Offline_Media: CDROM, or email
- Recording_Format: ISO 9660
- Fees: None if receiving the data online
- Custom_Order_Process: Contact CRED data management team for information
- Technical_Prerequisites: Contact CRED data management team for information
- Metadata_Reference_Information:
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- Metadata_Date: 20190526
- Metadata_Review_Date: 20100916
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Country: USA
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- CoRIS:
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- CoRIS_ID: 20100916014808
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20100124
- CoRIS_Ending_Date: 20100129
- CoRIS_Metadata_Link:
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https://www.coris.noaa.gov/metadata/records/html/cred_rea_benthiclpi_johnston_2010.html
- CoRIS_Tracking_ID: 4967
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