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 in Vatia, American Samoa: benthic images collected during belt transect surveys from 2020-01-23 to 2020-01-29 (NCEI Accession 0259494)

    Metadata Updated: December 1, 2023

    This data package includes the source imagery of a benthic cover analysis for surveys performed in 2020 by the NOAA Ecosystem Sciences Division (ESD) in Vatia, American Samoa. The imagery described here was collected during belt transect surveys of coral demography by the ESD according to protocols established by the NOAA National Coral Reef Monitoring Program (NCRMP).

    In 2020 the survey implemented a one-stage stratified random sampling (StRS) design. Thirty images were collected at 24 stratified randomly selected sites in Vatia Bay. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0–30 m depth range. The stratification scheme included cardinal position (i.e., north and south) and depth (i.e., shallow: >0–6 m and mid-depth: >6–18 m). Sampling effort allocation was determined based on strata area and sites randomly located within strata. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than more transects per site. Therefore, site-to-site comparisons should proceed with caution.

    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 2023-04-30T14:16:50Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date December 1, 2023
    Reference Date(s) September 23, 2022 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2023-04-30T14:16:50Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date December 1, 2023
    Reference Date(s) September 23, 2022 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0259494
    Access Constraints Cite as: Ecosystem Sciences Division, Pacific Islands Fisheries Science Center (2022). Benthic Surveys in Vatia, American Samoa: benthic images collected during belt transect surveys from 2020-01-23 to 2020-01-29 (NCEI Accession 0259494). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0259494. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -170.667963
    Bbox North Lat -14.24367
    Bbox South Lat -14.249853
    Bbox West Long -170.674412
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0259494
    Graphic Preview Type PNG
    Harvest Object Id 0db7a0e6-0b9b-4149-9d02-23dddc615ef5
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-170.674412, -14.249853], [-170.667963, -14.249853], [-170.667963, -14.24367], [-170.674412, -14.24367], [-170.674412, -14.249853]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2020-01-23
    Temporal Extent End 2020-01-29

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