Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Benthic surveys along a water quality gradient in Aua, American Samoa: benthic cover derived from analysis of benthic images collected in 2022

    Metadata Updated: June 14, 2024

    This metadata record describes the benthic cover data of Aua Reef, American Samoa, produced from the benthic imagery analysis performed by the Ecosystem Sciences Division (ESD) of the Pacific Island Fisheries Science Center (PIFSC) and funded by the Coral Reef Conservation Program (CRCP). Benthic imagery was collected at 18 randomly-selected sites during coral demographic surveys by the NOAA ESD during the 2022 fly-in mission to American Samoa (MP2206). After processing and sorting site photos, imagery was qualitatively analyzed using the web-based CoralNet image annotation tool. CoralNet projects random points on each image, and the benthic elements falling directly underneath each point are identified by trained scientists. The source imagery analyzed to produce benthic cover estimates as well as coral demography data are described and archived separately, see 'Related Items' below.

    Data from benthic surveys of Aua Reef establishes a comprehensive biological baseline for land-based sources of pollution impacts on benthic composition and coral demography. These efforts feed into the higher-level CRCP objectives by establishing an in-situ tracking system to assess the effects of management and mitigation strategies and activities in the target watersheds to reduce land-based sources of pollution impacts on coral reefs.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date June 4, 2024
    Metadata Created Date February 10, 2023
    Metadata Updated Date June 14, 2024
    Reference Date(s) 2022-10 (creation), 2022 (publication)
    Frequency Of Update notPlanned

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date June 4, 2024
    Metadata Created Date February 10, 2023
    Metadata Updated Date June 14, 2024
    Reference Date(s) 2022-10 (creation), 2022 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:67996
    Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Benthic surveys along a water quality gradient in Aua, American Samoa: benthic cover derived from analysis of benthic images collected in 2022 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/67996., Access Constraints: None, Use Constraints: Please cite NOAA Ecosystem Sciences Division (ESD) when using the data. Example Cite as: Vargas-Angel, Bernardo; Ecosystem Sciences Division; Pacific Islands Fisheries Science Center (2022). Benthic Surveys in Aua, American Samoa: benthic percent cover derived from analysis of benthic images collected during belt transect surveys of coral demography in 2022. NOAA National Centers for Environmental Information., Distribution Liability: 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.
    Bbox East Long -170.66486
    Bbox North Lat -14.271722
    Bbox South Lat -14.288051
    Bbox West Long -170.669158
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id 6b04074a-37f3-4d11-8c92-bd1a8f771383
    Harvest Source Id c0beac72-5f43-4455-8c33-1b345fbc2dfe
    Harvest Source Title NMFS PIFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage The methodology to analyze benthic imagery using CoralNet to derive benthic cover values. The data described here were derived from the analysis of benthic images collected along photoquadrat surveys by the NOAA Ecosystem Sciences Division (ESD):
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-170.669158, -14.288051], [-170.66486, -14.288051], [-170.66486, -14.271722], [-170.669158, -14.271722], [-170.669158, -14.288051]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2022-09-12
    Temporal Extent End 2022-09-22

    Didn't find what you're looking for? Suggest a dataset here.