An assessment of nutrients and sedimentation in the St. Thomas East End Reserves, US Virgin Islands

Pait, Anthony S.; Galdo, Francis R.; Ian Hartwell, S.; Apeti, Dennis A.; Mason, Andrew L.

doi:10.1007/s10661-018-6628-0

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

An assessment of nutrients and sedimentation in the St. Thomas East End Reserves, US Virgin Islands

2018
By Pait, Anthony S. ; Galdo, Francis R. ; Ian Hartwell, S. ; ...
Source: Environmental Monitoring and Assessment, 190(5)

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Details:

Journal Title:

Environmental Monitoring and Assessment
Personal Author:

Pait, Anthony S. ; Galdo, Francis R. ; Ian Hartwell, S. ; Apeti, Dennis A. ; Mason, Andrew L.

Pait, Anthony S. ; Galdo, Francis R. ; Ian Hartwell, S. ; Apeti, Dennis A. ; Mason, Andrew L. Less -
NOAA Program & Office:

NOS (National Ocean Service) ; NCCOS (National Centers for Coastal Ocean Science)

NOS (National Ocean Service) ; NCCOS (National Centers for Coastal Ocean Science) Less -
Description:

Nutrients and sedimentation were monitored for approximately 2 years at six sites in the St. Thomas East End Reserves (STEER), St. Thomas, USVI, as part of a NOAA project to develop an integrated environmental assessment. Concentrations of ammonium (NH4+) and dissolved inorganic nitrogen (DIN) were higher in Mangrove Lagoon and Benner Bay in the western portion of STEER than in the other sites further east (i.e., Cowpet Bay, Rotto Cay, St. James, and Little St. James). There was no correlation between rainfall and nutrient concentrations. Using a set of suggested nutrient thresholds that have been developed to indicate the potential for the overgrowth of algae on reefs, approximately 60% of the samples collected in STEER were above the threshold for orthophosphate (HPO4=), while 55% of samples were above the DIN threshold. Benner Bay had the highest sedimentation rate of any site monitored in STEER, including Mangrove Lagoon. There was also an east to west and a north to south gradient in sedimentation, indicative of higher sedimentation rates in the western, more populated areas surrounding STEER, and sites closer to the shore of the main island of St. Thomas. Although none of the sites had a mean or average sedimentation rate above a suggested sedimentation threshold, the mean sedimentation rate in Benner Bay was just below the threshold.
Keywords:

[+]

General Environmental Science General Medicine Management, Monitoring, Policy And Law Pollution
Source:

Environmental Monitoring and Assessment, 190(5)
DOI:

https://doi.org/10.1007/s10661-018-6628-0
ISSN:

0167-6369;1573-2959;
Format:

PDF
Publisher:

Springer Science and Business Media LLC
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:4638238f5a6e05843ef1b6b96ca7a637882c4b8bd572078ddd9ed58d65eff406
Download URL:

https://repository.library.noaa.gov/view/noaa/52248/noaa_52248_DS1.pdf
File Type:

[PDF-244.37 KB]