CSI Senior Consultant Lead Author of Article: Photo-enhanced Toxicity of Two Weathered Macondo Crude Oils to Early Life Stages of the Eastern Oyster (Crassostrea virginica), Published in the Marine Pollution Bulletin, 2016

marine-pollution-bulletinBryson Finch, CSI Senior Consultant, is the lead author of an article published in the Marine Pollution Bulletin, October 2016.

The title of the article is, Photo-enhanced toxicity of two weathered Macondo crude oils to early life stages of the eastern oyster (Crassostrea virginica).

Abstract: Polycyclic aromatic hydrocarbons (PAHs) have been reported to absorb ultraviolet (UV) light, resulting in enhanced toxicity. Early developmental stages of bivalves may be particularly susceptible to photo-enhanced toxicity during oil spills. In the current study, toxicity tests were conducted with sperm and three larval ages of the eastern oyster (Crassostrea virginica) to evaluate the photo-enhanced toxicity of low-energy water-accommodated fractions (WAFs) of two weathered Macondo crude oils collected from the Deepwater Horizon incident. Larvae exposed to oil WAFs under UV-filtered light demonstrated consistently higher survival and normal development than larvae exposed to WAFs under UV light. The phototoxicity of weathered Macondo oil increased as a function of increasing UV light intensity and dose. Early developing oyster larvae were the most sensitive to photo-enhanced toxicity, whereas later shelled prodissoconch larvae were insensitive. Comparisons between two weathered crude oils demonstrated that toxicity was dependent on phototoxic PAH concentration and UV light intensity.

For more information click the article title above or contact Bryson directly (BFinch@complianceservices.com).

For more information on the presentations, please visit our Reports and Presentations page on our website (www.complianceservices.com) or Contact Us at info@complianceservices.com to learn more about CSI.

Leave A Comment...

This site uses Akismet to reduce spam. Learn how your comment data is processed.