Effects of wildfire on sea otter (Enhydra lutris) gene transcript profiles

Marine Mammal Science
By: , and 



Wildfires have been shown to impact terrestrial species over a range of temporal scales. Little is known, however, about the more subtle toxicological effects of wildfires, particularly in downstream marine or downwind locations from the wildfire perimeter. These down-current effects may be just as substantial as those effects within the perimeter. We used gene transcription technology, a sensitive indicator of immunological perturbation, to study the effects of the 2008 Basin Complex Fire on the California coast on a sentinel marine species, the sea otter (Enhydra lutris). We captured sea otters in 2008 (3 mo after the Basin Complex Fire was controlled) and 2009 (15 mo after the Basin Complex Fire was controlled) in the adjacent nearshore environment near Big Sur, California. Gene responses were distinctly different between Big Sur temporal groups, signifying detoxification of PAHs, possible associated response to potential malignant transformation, and suppression of immune function as the primary responses of sea otters to fire in 2008 compared to those captured in 2009. In general, gene transcription patterns in the 2008 sea otters were indicative of molecular reactions to organic exposure, malignant transformation, and decreased ability to respond to pathogens that seemed to consistent with short-term hydrocarbon exposure.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Effects of wildfire on sea otter (Enhydra lutris) gene transcript profiles
Series title Marine Mammal Science
DOI 10.1111/mms.12151
Volume 31
Issue 1
Year Published 2015
Language English
Publisher Society for Marine Mammalogy
Publisher location Lawrence, KS
Contributing office(s) Western Ecological Research Center
Description 20 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Marine Mammal Science
First page 191
Last page 210
Country United States
State California
Online Only (Y/N) N
Additional Online Files (Y/N) N