title: Assessment of early life stage mahi-mahi windows of sensitivity during acute exposures to Deepwater Horizon crude oil.
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 96 h following oil exposures ranging from 2 h to 96 h 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 (∼1 μm). 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. Environ Toxicol Chem 2017;36:1887-1895. © 2016 SETAC.
authors.affiliation: Department of Biological Sciences, University of North Texas, Denton, Texas, USA.
authors.forename: Edward M
authors.initials: EM
authors.lastname: Mager
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: Christina
authors.initials: C
authors.lastname: Pasparakis
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: Lela S
authors.initials: LS
authors.lastname: Schlenker
authors.affiliation: Engineering Research Center for Saline-alkaline Fisheries, East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai, China.
authors.forename: Zongli
authors.initials: Z
authors.lastname: Yao
authors.affiliation: Sanofi-Adventis, Paris, France.
authors.forename: Charlotte
authors.initials: C
authors.lastname: Bodinier
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: John D
authors.initials: JD
authors.lastname: Stieglitz
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: Ronald
authors.initials: R
authors.lastname: Hoenig
authors.affiliation: Abt Associates, Boulder, Colorado, USA.
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Morris
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: Daniel D
authors.initials: DD
authors.lastname: Benetti
authors.affiliation: Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA.
authors.forename: Martin
authors.initials: M
authors.lastname: Grosell
mesh_terms: D000818:Animals; D001681:Biological Assay; D008018:Life Cycle Stages / Q000187:drug effects; D010473:Perciformes / Q000254:growth & development*; D010578:Petroleum / Q000032:analysis* / Q000633:toxicity; D059392:Petroleum Pollution; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry / Q000633:toxicity; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000633:toxicity
chemical_list: D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical
keywords: Aquatic toxicology; Mahi-mahi; Oil spills; Polycyclic aromatic hydrocarbons (PAHs)