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Status of coral communities in American Samoa: a re-survey of long-term monitoring sites in 2002 (NCEI Accession 0001470)

Metadata Updated: February 1, 2025

A re-survey of coral communities in the American Samoa Archipelago covering the island of Tutuila and the Manu'a Group of islands (Ofu, Olosega, and Tau), was carried out during March 2002.

All surveyed sites in 2002 were restricted to the 10m deep slope habitat only. The 1995 baseline survey utilized a larger sample size (belt width) within replicate transects, that could not be duplicated in the allocated time for the present survey due to the significant increase in colony densities. The same number of belt transects (5 per site) was used in both surveys for the Manu'a Group sites, but the number of transects per site was reduced to 3 per site on Tutuila. Consequently, sample unit size per site was 50% to 70% of the area sampled in 1995.

Data were analyzed to investigate changes in coral colony size structure, cover, and density, and to interpret community dynamics. The variation in sample effort between surveys and to a less extent, among sites in 2002, meant that pooled analyses were limited, so descriptive and statistical tools were used to interpret community dynamics during the period between the two surveys. Threats and disturbances were also interpreted from features of the coral community dynamics, which included the impacts (and current extent) of coral bleaching as well as crown of thorns starfish infestations.

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.

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Dates

Metadata Date 2024-08-22T00:42:06Z
Metadata Created Date March 12, 2021
Metadata Updated Date February 1, 2025
Reference Date(s) May 24, 2004 (publication), January 3, 2022 (revision)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA/NESDIS/ncei/accessions

Graphic Preview

Preview graphic

Additional Metadata

Resource Type Dataset
Metadata Date 2024-08-22T00:42:06Z
Metadata Created Date March 12, 2021
Metadata Updated Date February 1, 2025
Reference Date(s) May 24, 2004 (publication), January 3, 2022 (revision)
Responsible Party (Point of Contact)
Contact Email
Guid gov.noaa.nodc:0001470
Access Constraints Cite as: Birkeland, Charles; US DOI > USGS - Honolulu (2004). Status of coral communities in American Samoa: a re-survey of long-term monitoring sites in 2002 (NCEI Accession 0001470). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001470. 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 -169.445
Bbox North Lat -14.162
Bbox South Lat -14.366
Bbox West Long -170.789
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:0001470
Graphic Preview Type PNG
Harvest Object Id 15f29bc5-1e4c-4844-b38e-1cc17a3dd0c4
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": [[[-170.789, -14.366], [-169.445, -14.366], [-169.445, -14.162], [-170.789, -14.162], [-170.789, -14.366]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2002-03-06
Temporal Extent End 2002-03-21

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