The use of ephyrae of a scyphozoan jellyfish, Aurelia aurita, in the aquatic toxicological assessment of Macondo oils from the Deepwater Horizon incident

The use of ephyrae of a scyphozoan jellyfish, Aurelia aurita, in the aquatic toxicological assessment of Macondo oils from the Deepwater Horizon incident

Ephyrae of the scyphozoan jellyfish, Aurelia aurita, were evaluated in 96-hr acute toxicity tests for lethal response to Macondo crude oils from the Deepwater Horizon (DWH) incident in the Gulf of Mexico (GOM), Corexit 9500, and oil-dispersant mixtures. Water accommodated fractions (WAFs) of weather...

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Veröffentlicht in:Chemosphere (Oxford) 2016-02, Vol.144, p.1893-1900
Hauptverfasser: Echols, B.S., Smith, A.J., Gardinali, P.R., Rand, G.M.
Format: Artikel
Sprache:eng
Schlagworte:
Accidents
Acute toxicity
Animals
Assessments
Aurelia aurita
Corexit 9500
Crude oil
Deepwater Horizon
Deepwater terminals
Dispersants
Droplets
Ecotoxicology
Exposure
Gulf of Mexico
Jellyfish
Lipids - toxicity
Marine
Mortality
PAHs
Petroleum - analysis
Petroleum Pollution
Polycyclic Aromatic Hydrocarbons - toxicity
Scyphozoa - drug effects
Stress indicators
Toxicity
Water Pollutants, Chemical - toxicity
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Zusammenfassung:Ephyrae of the scyphozoan jellyfish, Aurelia aurita, were evaluated in 96-hr acute toxicity tests for lethal response to Macondo crude oils from the Deepwater Horizon (DWH) incident in the Gulf of Mexico (GOM), Corexit 9500, and oil-dispersant mixtures. Water accommodated fractions (WAFs) of weathered and unweathered Macondo crude oils were not acutely toxic to ephyrae (LC50s > 100% WAF). The total PAHs (TPAHs), measured as the sum of 46 PAHs, averaged 21.1and 152 µg TPAH/L for WAFs of weathered and unweathered oil, respectively. Mortality was significantly (p = 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2015.10.082