Effects of oil exposure on pink salmon,Oncorhynchus gorbuscha,alevins in a simulated intertidal environment |
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| Institution: | 1. Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Canada;2. School of Environmental Studies, Queen’s University, Kingston, ON, Canada;1. Institut National de la Recherche Scientifique (INRS), Centre Eau Terre Environnement, 490 rue de la Couronne, Québec, Canada;2. CEAEQ, Ministère de l’Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, Québec, Canada;1. Institut national de la recherche scientifique (INRS), Centre Eau Terre Environnement, 490 rue de la Couronne, Québec, QC, Canada;2. CEAEQ, Ministère de l′Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, Québec, Canada;1. Department of Integrative Biology, University of Guelph, Ontario, Canada;2. Department of Biological Sciences, Simon Fraser University, British Columbia, Canada;3. Department of Zoology and Faculty of Land and Food Systems, University of British Columbia, British Columbia, Canada |
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| Abstract: | Pink salmon, Oncorhynchus gorbuscha, alevins (5 and 60 days after hatching) were continuously or intermittently exposed for 30 days to the water-soluble fraction (WSF) of Cook Inlet crude oil in fresh water or in a simulated freshwater-seawater cycle. Alevins exposed to 0·7−2·4 mg/liter WSF in the simulated tidal cycle were more sensitive to oil, had reduced yolk reserves, and accumulated more hydrocarbons than did alevins exposed to the same concentrations in fresh water. Alevins in fresh water were more sensitive to continuous than to intermittent exposures. In all exposures, 60-day alevins were more severely affected than were 5-day alevins. |
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