Spatial distribution of sewage pollution on a Hawaiian coral reef

Abaya, Leilani M.; Wiegner, Tracy N.; Beets, James P.; Colbert, Steven L.; Carlson, Kaile'a M.; Kramer, K. Lindsey

doi:10.1016/j.marpolbul.2018.03.028

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Spatial distribution of sewage pollution on a Hawaiian coral reef

2018
By Abaya, Leilani M. ; Wiegner, Tracy N. ; Beets, James P. ; ...
Source: Marine Pollution Bulletin, 130, 335-347

[PDF-1.51 MB]

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Journal Title:

Marine Pollution Bulletin
Personal Author:

Abaya, Leilani M. ; Wiegner, Tracy N. ; Beets, James P. ; Colbert, Steven L. ; Carlson, Kaile'a M. ; ... More +

Abaya, Leilani M. ; Wiegner, Tracy N. ; Beets, James P. ; Colbert, Steven L. ; Carlson, Kaile'a M. ; Kramer, K. Lindsey Less -
NOAA Program & Office:

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System)

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System) Less -
Description:

While sewage pollution is contributing to the global decline of coral reefs, its offshore extent and direct reef impacts from water column mixing and benthic seeps are poorly documented. We addressed this knowledge gap on a Hawaiian coral reef using sewage indicator and benthic cover measurements, macroalgal bioassays, and a pollution scoring tool. Fecal indicator bacteria (FIB) and nutrient concentrations were spatially variable in surface and benthic waters, with shoreline values being highest. Shoreline macroalgae δ15N and %N indicated high nitrogen loads containing sewage, while offshore surface and benthic values suggested lower nitrogen loads from environmental sources. Coral cover was negatively correlated with FIB, macroalgal δ15N, and nutrient concentrations. Benthic salinity and temperature measurements detected daily tidal groundwater pulses which may explain these associations. While pollution scores revealed that sewage was largely concentrated along the shoreline, results showed some reached the reef and may be contributing to its declining condition.
Keywords:

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Aquatic Science Oceanography Pollution
Source:

Marine Pollution Bulletin, 130, 335-347
DOI:

https://doi.org/10.1016/j.marpolbul.2018.03.028
ISSN:

0025-326X
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PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA14NOS4820087
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Accepted Manuscript
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urn:sha256:fc23c0069008502d883060f1d311aeea49abb80312b4d4e9eb76586c5077d3d6
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https://repository.library.noaa.gov/view/noaa/57804/noaa_57804_DS1.pdf
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Spatial distribution of sewage pollution on a Hawaiian coral reef

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