Abstract
The Deepwater Horizon oil spill in 2010 overlapped with the spawning of many pelagic fish species in the Gulf of Mexico, including mahi-mahi (Coryphaena hippurus). PAH released during the spill have been shown to cause photo-induced toxicity under UV radiation. To verify this, mahi-mahi embryos were exposed to high-energy water accommodated fractions of source and naturally weathered oils for up to 48 h. The co-exposure timing with UV radiation varied between an early development exposure for 8 hr or a late development exposure for 8 hr. The UV co-exposure had a photo-induced toxic effect on hatching success for all oil types and exposure scenarios. A more sensitive developmental window to photo-induced toxicity was observed when UV exposure occurred late in development. Source Oil B was over six-fold more toxic, and Massachusetts source oil was 1.6-fold more toxic when the embryos were co-exposed to UV light late in development. Weathered oil from the surface co-exposure with UV late in development resulted in bradycardia in the mahi-mahi.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1592-1598 |
| Number of pages | 7 |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 36 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 1 2017 |
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Keywords
- Oil spills
- Photo-induced toxicity
- Polycyclic aromatic hydrocarbons (PAHs)
ASJC Scopus subject areas
- Environmental Chemistry
- Health, Toxicology and Mutagenesis
Cite this
Exposure to ultraviolet radiation late in development increases the toxicity of oil to mahi-mahi (Coryphaena hippurus) embryos. / Sweet, Lauren E.; Magnuson, Jason; Garner, T. Ross; Alloy, Matthew M.; Stieglitz, John; Benetti, Daniel D; Grosell, Martin; Roberts, Aaron P.
In: Environmental Toxicology and Chemistry, Vol. 36, No. 6, 01.06.2017, p. 1592-1598.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Exposure to ultraviolet radiation late in development increases the toxicity of oil to mahi-mahi (Coryphaena hippurus) embryos
AU - Sweet, Lauren E.
AU - Magnuson, Jason
AU - Garner, T. Ross
AU - Alloy, Matthew M.
AU - Stieglitz, John
AU - Benetti, Daniel D
AU - Grosell, Martin
AU - Roberts, Aaron P.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - The Deepwater Horizon oil spill in 2010 overlapped with the spawning of many pelagic fish species in the Gulf of Mexico, including mahi-mahi (Coryphaena hippurus). PAH released during the spill have been shown to cause photo-induced toxicity under UV radiation. To verify this, mahi-mahi embryos were exposed to high-energy water accommodated fractions of source and naturally weathered oils for up to 48 h. The co-exposure timing with UV radiation varied between an early development exposure for 8 hr or a late development exposure for 8 hr. The UV co-exposure had a photo-induced toxic effect on hatching success for all oil types and exposure scenarios. A more sensitive developmental window to photo-induced toxicity was observed when UV exposure occurred late in development. Source Oil B was over six-fold more toxic, and Massachusetts source oil was 1.6-fold more toxic when the embryos were co-exposed to UV light late in development. Weathered oil from the surface co-exposure with UV late in development resulted in bradycardia in the mahi-mahi.
AB - The Deepwater Horizon oil spill in 2010 overlapped with the spawning of many pelagic fish species in the Gulf of Mexico, including mahi-mahi (Coryphaena hippurus). PAH released during the spill have been shown to cause photo-induced toxicity under UV radiation. To verify this, mahi-mahi embryos were exposed to high-energy water accommodated fractions of source and naturally weathered oils for up to 48 h. The co-exposure timing with UV radiation varied between an early development exposure for 8 hr or a late development exposure for 8 hr. The UV co-exposure had a photo-induced toxic effect on hatching success for all oil types and exposure scenarios. A more sensitive developmental window to photo-induced toxicity was observed when UV exposure occurred late in development. Source Oil B was over six-fold more toxic, and Massachusetts source oil was 1.6-fold more toxic when the embryos were co-exposed to UV light late in development. Weathered oil from the surface co-exposure with UV late in development resulted in bradycardia in the mahi-mahi.
KW - Oil spills
KW - Photo-induced toxicity
KW - Polycyclic aromatic hydrocarbons (PAHs)
UR - http://www.scopus.com/inward/record.url?scp=85027957281&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027957281&partnerID=8YFLogxK
U2 - 10.1002/etc.3687
DO - 10.1002/etc.3687
M3 - Article
C2 - 27859534
AN - SCOPUS:85027957281
VL - 36
SP - 1592
EP - 1598
JO - Environmental Toxicology and Chemistry
JF - Environmental Toxicology and Chemistry
SN - 0730-7268
IS - 6
ER -