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    • Nutrient and water chemistry data of Nu'uuli Pala Lagoon and Backreef in American Samoa from samples collected along a water quality gradient between 2024-11-08 to 2024-11-20

    Metadata Updated: September 27, 2025

    The data described here are from water samples collected during NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) led fly-in Mission to Nu'uuli, American Samoa from November 4-21, 2024. Five seawater samples were collected at each site, with a total of 20 sites established across a locally known water quality gradient. The seawater samples were processed in the field, then sent to the University of Hawaii at Manoa's SOEST S-Lab to be analyzed for dissolved nutrients and chlorophyll-a. This water quality and environmental data includes chlorophyll-a, dissolved nutrients (nitrate + nitrite, phosphate, ammonia), total suspended sediments (measured at NOAA), seawater salinity (measured at NOAA), and seawater pH (measured in the field).

    In addition to environmental conditions surveyed across sites in Nu'uuli Pala Lagoon and Backreef in November 2024, additional surveys are described separately and accessible under 'Related Items' and include surveys of coral demography, benthic imagery/benthic cover, subsurface temperature loggers, non-coral communities, and coral demography.

    The project was funded by NOAA CRCP under project number 31454, and through funds from NOAA's Pacific Islands Regional Office.

    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 September 18, 2025
    Metadata Created Date September 27, 2025
    Metadata Updated Date September 27, 2025
    Reference Date(s) 2025-01 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NMFS PIFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 18, 2025
    Metadata Created Date September 27, 2025
    Metadata Updated Date September 27, 2025
    Reference Date(s) 2025-01 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:74827
    Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Nutrient and water chemistry data of Nu'uuli Pala Lagoon and Backreef in American Samoa from samples collected along a water quality gradient between 2024-11-08 to 2024-11-20 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/74827., Access Constraints: None, Use Constraints: Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data. Example: Ecosystem Science Division; Pacific Islands Fisheries Science Center, 2025: Effects of Nutrients on Water Chemistry of Nu'uuli Pala Lagoon and Backreef in American Samoa from Water Samples collected in 2024 along a water quality gradient, https://www.fisheries.noaa.gov/inport/item/74827, 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 -170.6999
    Bbox North Lat -14.31784
    Bbox South Lat -14.32444
    Bbox West Long -170.7107
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id d8434aa1-5b60-461f-a4f3-a5e968428ce4
    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 All carbonate system collection and measurement methodologies follow the protocols accepted by the greater scientific community and outlined in Dickson et al. (2007) Sites were selected randomly along a water quality gradient established by local knowledge.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-170.7107, -14.32444], [-170.6999, -14.32444], [-170.6999, -14.31784], [-170.7107, -14.31784], [-170.7107, -14.32444]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2024-11-08
    Temporal Extent End 2024-11-20

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