Assessment of early life stage mahi-mahi windows of sensitivity during acute exposures to Deepwater Horizon crude oil

Edward M. Mager, Christina Pasparakis, Lela S. Schlenker, Zongli Yao, Charlotte Bodinier, John Stieglitz, Ronald Hoenig, Jeffrey M. Morris, Daniel D Benetti, Martin Grosell

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Windows of exposure to a weathered Deepwater Horizon oil sample (slick A) were examined for early life stage mahi-mahi (Coryphaena hippurus) to determine whether there are developmental periods of enhanced sensitivity during the course of a standard 96-h bioassay. Survival was assessed at 96h following oil exposures ranging from 2h to 96h and targeting 3 general periods of development, namely the prehatch phase, the period surrounding hatch, and the posthatch phase. In addition, 3 different oil preparations were used: high- and low-energy water accommodated fractions of oil and very thin surface slicks of oil (∼1μm). The latter 2 were used to distinguish between effects due to direct contact with the slick itself and the water underlying the slick. Considering the data from all 3 exposure regimes, it was determined that the period near or including hatch was likely the most sensitive. Furthermore, toxicity was not enhanced by direct contact with slick oil. These findings are environmentally relevant given that the concentrations of polycyclic aromatic hydrocarbons eliciting mortality from exposures during the sensitive periods of development were below or near concentrations measured during the active spill phase.

Original languageEnglish (US)
JournalEnvironmental Toxicology and Chemistry
DOIs
StateAccepted/In press - 2017

Fingerprint

Perciformes
Petroleum
crude oil
Oils
oil
Hatches
Water
Bioassay
Polycyclic Aromatic Hydrocarbons
targeting
Hazardous materials spills
energy
bioassay
PAH
Biological Assay
Toxicity
exposure
toxicity
mortality
water

Keywords

  • Aquatic toxicology
  • Mahi-mahi
  • Oil spills
  • Polycyclic aromatic hydrocarbons (PAHs)

ASJC Scopus subject areas

  • Environmental Chemistry
  • Health, Toxicology and Mutagenesis

Cite this

Assessment of early life stage mahi-mahi windows of sensitivity during acute exposures to Deepwater Horizon crude oil. / Mager, Edward M.; Pasparakis, Christina; Schlenker, Lela S.; Yao, Zongli; Bodinier, Charlotte; Stieglitz, John; Hoenig, Ronald; Morris, Jeffrey M.; Benetti, Daniel D; Grosell, Martin.

In: Environmental Toxicology and Chemistry, 2017.

Research output: Contribution to journalArticle

Mager, Edward M. ; Pasparakis, Christina ; Schlenker, Lela S. ; Yao, Zongli ; Bodinier, Charlotte ; Stieglitz, John ; Hoenig, Ronald ; Morris, Jeffrey M. ; Benetti, Daniel D ; Grosell, Martin. / Assessment of early life stage mahi-mahi windows of sensitivity during acute exposures to Deepwater Horizon crude oil. In: Environmental Toxicology and Chemistry. 2017.
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