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 language | English (US) |
|---|---|
| Journal | Environmental Toxicology and Chemistry |
| DOIs | |
| State | Accepted/In press - 2017 |
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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 journal › Article
}
TY - JOUR
T1 - Assessment of early life stage mahi-mahi windows of sensitivity during acute exposures to Deepwater Horizon crude oil
AU - Mager, Edward M.
AU - Pasparakis, Christina
AU - Schlenker, Lela S.
AU - Yao, Zongli
AU - Bodinier, Charlotte
AU - Stieglitz, John
AU - Hoenig, Ronald
AU - Morris, Jeffrey M.
AU - Benetti, Daniel D
AU - Grosell, Martin
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Aquatic toxicology
KW - Mahi-mahi
KW - Oil spills
KW - Polycyclic aromatic hydrocarbons (PAHs)
UR - http://www.scopus.com/inward/record.url?scp=85011660662&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85011660662&partnerID=8YFLogxK
U2 - 10.1002/etc.3713
DO - 10.1002/etc.3713
M3 - Article
C2 - 28128479
AN - SCOPUS:85011660662
JO - Environmental Toxicology and Chemistry
JF - Environmental Toxicology and Chemistry
SN - 0730-7268
ER -