JOURNAL ARTICLE

Photo‐Enhanced Oil Toxicity to Alcid Immune Function.

  • Published In: Environmental Toxicology & Chemistry, 2023, v. 42, n. 12. P. 2701 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Counihan, Katrina L.; McKenna, Amy M.; Hebert, Deja; Tomco, Patrick; Zito, Phoebe 3 of 3

Abstract

This article investigates the toxicity and photo-enhanced toxicity of Alaska North Slope (ANS) crude oil on immune function in three alcid seabird species: common murres (Uria aalge), tufted puffins (Fratercula cirrhata), and horned puffins (Fratercula corniculata). The study assessed lymphocyte proliferation, macrophage phagocytosis, and reactive oxygen species (hydrogen peroxide) production after exposure to oil and UV-photoactivated oil. Results showed that oil exposure significantly suppressed macrophage phagocytosis and increased hydrogen peroxide production, with nonphotoactivated oil inducing more oxidative stress than photoactivated oil; lymphocyte proliferation was influenced more by species, age, and sex than by oil exposure. These findings suggest that immune responses to oil spills in alcids vary by intrinsic factors and seasonally with sunlight exposure, providing insights relevant to wildlife risk assessment and rehabilitation strategies for oiled seabirds.

Additional Information

  • Source:Environmental Toxicology & Chemistry. 2023/12, Vol. 42, Issue 12, p2701
  • Document Type:Article
  • Subject Area:Environmental Sciences
  • Publication Date:2023
  • ISSN:0730-7268
  • DOI:10.1002/etc.5742
  • Accession Number:173760365
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