Toxicity comparison of the shoreline cleaners Accell Clean® and PES-51® in two life stages of the grass shrimp, Palaemonetes pugio
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Oil spills are a significant source of coastal pollution. Shoreline cleaners, used to remove oil from surfaces during spill response and remediation, may also act as toxins. Adult and larval grass shrimp, Palaemonetes pugio, were tested for lethal and sublethal impacts from two shoreline cleaners, Accell Clean SWA® and PES-51®, alone and in combination with crude oil using Chemically Enhanced Water Accommodated Fractions (CEWAFs). Median lethal toxicity values determined for the individual cleaners were similar. However, when tested in mixture with oil as CEWAFs, Accell Clean SWA resulted in greater hydrocarbon concentrations in the water column and greater toxicity than PES-51. Increased glutathione levels were observed for adult shrimp exposed to Accell Clean SWA, and glutathione was elevated in shrimp exposed to both CEWAFs. Larval shrimp development was delayed after exposure to both CEWAFs. These findings may have implications for managing and mitigating oil spills.
KeywordsShoreline cleaner Oil Grass shrimp Accell Clean SWA® PES-51® Larval development
Thank you to Jamileh Soueidan for the laboratory assistance, as well as James Daugomah and Blaine West for field collections. We thank Ed Wirth for assistance with chemical analysis. We appreciate helpful manuscript reviews by Paul Pennington, A.K. Leight, and Len Balthis.
Compliance with ethical standards
The NOAA, National Ocean Service does not approve, recommend, or endorse any proprietary product or material mentioned in this publication.
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