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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zapp Sluis, Michelle Boswell, Kevin M. Chumchal, Matthew M. Wells, R. J. David Soulen, Brianne Cowan, James H. |
| Spatial Coverage | Texas Louisiana Gulf of Mexico Alabama |
| Description | Country affiliation: United States Author Affiliation: Zapp Sluis M ( Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, Louisiana, USA. michelle.sluis@tamucc.edu) |
| Abstract | The presence of total mercury (Hg) in fish tissue and the potential associated health risks has become a global concern in marine ecosystems. Few studies have examined basin-scale variation in Hg accumulation in marine ecosystems, and determining if Hg concentrations in fish tissue vary across marine ecosystems is a key monitoring question. The present study evaluated Hg concentrations in red snapper (Lutjanus campechanus) tissue across three regions of the northern Gulf of Mexico (Alabama, Louisiana, and Texas, USA) and between two habitat types (oil and gas platforms and nonplatforms) within each region. Nitrogen (δ(15)N), carbon (δ(13)C), and sulfur (δ(34)S) stable isotopes were used to investigate ecological differences that may affect Hg concentrations among regions and between habitats. Mercury concentrations in red snapper tissue were positively correlated with fish total length. Regional differences in Hg concentrations were significant, with fish collected from Alabama having the highest concentrations and fish collected from Louisiana having the lowest. No significant difference existed in Hg concentrations between habitats, suggesting that association with platforms may not be a significant factor contributing to red snapper Hg concentrations. While δ(15)N did not differ significantly among the three regions, Texas red snapper were more enriched in δ(34)S and depleted in δ(13)C compared with Alabama and Louisiana red snapper. Although the majority of red snapper collected in the present study had Hg concentrations below safe consumption guidelines, regional differences suggest that spatially explicit monitoring programs may be important for basin-wide assessments. |
| File Format | HTM / HTML |
| ISSN | 07307268 |
| Issue Number | 2 |
| Volume Number | 32 |
| e-ISSN | 15528618 |
| Journal | Environmental Toxicology and Chemistry |
| Language | English |
| Publisher | Wiley |
| Publisher Date | 2013-02-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Water Pollutants, Chemical Water Pollution, Chemical Research Support, U.s. Gov't, Non-p.h.s. Environmental Monitoring Discipline Environmental Health Gulf Of Mexico Discipline Toxicology Metabolism Alabama Journal Article Animals Ecosystem Analysis Texas Perciformes Louisiana Discipline Chemistry Statistics & Numerical Data Mercury Isotopes |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis |
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