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Contaminant enrichment and toxicity of the Gulf's sea surface microlayer : baseline for determining long-term persistence
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Fowler, Scott W. and Price, Andrew R. G. (2022) Contaminant enrichment and toxicity of the Gulf's sea surface microlayer : baseline for determining long-term persistence. Marine Pollution Bulletin, 174 . p. 113267. doi:10.1016/j.marpolbul.2021.113267 ISSN 0025-326X.
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Official URL: http://dx.doi.org/10.1016/j.marpolbul.2021.113267
Abstract
The Gulf contains important biodiversity, but is also heavily impacted. While studies have measured seawater contaminants and toxicity, we are not aware of discrete sampling of the sea surface microlayer (SML). This ocean-atmosphere interface is important environmentally, but also sensitive to marine and atmospheric contaminant inputs. We sampled the SML and subsurface seawater (SSW) from the Gulf in August 1991 and 1992. The SML exhibited significant enrichment of petroleum hydrocarbons, Cu, Cd and Pb, which persisted more than one year after the massive 1991 Gulf War oil spill. Toxicity to echinoderm larvae was also greater in the SML. This likely reflects effects of contaminants measured and other stressors. Sophisticated techniques used over recent decades to determine biological effects of contaminants in the Gulf could usefully extend to the SML. Our study has demonstrated its sensitivity and could serve as a ‘baseline’ for determining long-term persistence of seawater contamination and toxicity.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||
Journal or Publication Title: | Marine Pollution Bulletin | ||||||
Publisher: | Elsevier Ltd | ||||||
ISSN: | 0025-326X | ||||||
Official Date: | 5 January 2022 | ||||||
Dates: |
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Volume: | 174 | ||||||
Page Range: | p. 113267 | ||||||
DOI: | 10.1016/j.marpolbul.2021.113267 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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