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Effect of Deepwater Horizon Crude Oil on Olfaction and Electroreception in the Atlantic Stingray, Dasyatis sabina

Crude oil causes both lethal and sublethal effects on marine organisms, but the
impact upon sensory function remains unexplored. Elasmobranchs rely upon the effective
functioning of their sensory systems for use in feeding, mating, and predator avoidance.
The objective of this study was to test the effect of crude oil upon the olfactory and
electroreceptive sensitivity of the Atlantic stingray, Dasyatis sabina. The magnitudes of
the electro-olfactogram (EOG) responses were significantly depressed by 26% (Glutamic
Acid) to 157% (Cysteine) for all amino acids when stingrays were exposed to crude oil.
The shapes of the EOG responses when exposed to oil were also significantly different,
exhibiting a more protracted response compared to un-exposed stingrays. Oil exposed
stingrays exhibited a significant decrease in orientation distance to prey-simulating
electric fields. This study is the first to quantify the effects of crude oil on olfactory and
electrosensory sensitivity of marine predators. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2016. / FAU Electronic Theses and Dissertations Collection

Identiferoai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_33904
ContributorsCave, Eloise (author), Kajiura, Stephen M. (Thesis advisor), Florida Atlantic University (Degree grantor), Charles E. Schmidt College of Science, Department of Biological Sciences
PublisherFlorida Atlantic University
Source SetsFlorida Atlantic University
LanguageEnglish
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation, Text
Format62 p., application/pdf
RightsCopyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder., http://rightsstatements.org/vocab/InC/1.0/

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