Effects of Lampricide on Olfaction and Behavior in Young-of-the-Year Lake Sturgeon (Acipenser fulvescens).
Identifieur interne : 000078 ( Main/Exploration ); précédent : 000077; suivant : 000079Effects of Lampricide on Olfaction and Behavior in Young-of-the-Year Lake Sturgeon (Acipenser fulvescens).
Auteurs : Kathrine Sakamoto [Canada] ; William A. Dew [Canada] ; Stephen J. Hecnar [Canada] ; Gregory G. Pyle [Canada]Source :
- Environmental science & technology [ 1520-5851 ] ; 2016.
Abstract
The lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), is a primary component to sea lamprey control in the Laurentian Great Lakes. Though the lethal effects of TFM are well-known, the sublethal effects on fishes are virtually unknown. Here we studied the effects of TFM on the olfactory capabilities and behavior of young-of-the-year (YOY) lake sturgeon (Acipenser fulvescens). At ecologically relevant concentrations of TFM there was reduced olfactory response to all three cues (l-alanine, taurocholic acid, food cue) tested, suggesting that TFM inhibits both olfactory sensory neurons tested. Sturgeon exposed to TFM also showed a reduced attraction to the scent of food and reduced consumption of food relative to unexposed fish. Exposed fish were more active than control fish, but with slower acceleration. Fish were able to detect the scent of TFM, but failed to avoid it in behavioral trials. The connection between neurophysiological and behavioral changes, and the commonality of habitats between sturgeon and lamprey ammocoetes, suggests that there may be effects at the ecosystem level in streams that undergo lamprey control treatments.
DOI: 10.1021/acs.est.6b01051
PubMed: 27015540
Affiliations:
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Hecnar</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, Lakehead University , 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biology, Lakehead University , 955 Oliver Road, Thunder Bay, Ontario P7B 5E1</wicri:regionArea><wicri:noRegion>Ontario P7B 5E1</wicri:noRegion></affiliation></author><author><name sortKey="Pyle, Gregory G" sort="Pyle, Gregory G" uniqKey="Pyle G" first="Gregory G" last="Pyle">Gregory G. Pyle</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biological Sciences, University of Lethbridge , 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biological Sciences, University of Lethbridge , 4401 University Drive, Lethbridge, Alberta T1K 3M4</wicri:regionArea><wicri:noRegion>Alberta T1K 3M4</wicri:noRegion></affiliation></author></analytic><series><title level="j">Environmental science & technology</title><idno type="eISSN">1520-5851</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), is a primary component to sea lamprey control in the Laurentian Great Lakes. Though the lethal effects of TFM are well-known, the sublethal effects on fishes are virtually unknown. Here we studied the effects of TFM on the olfactory capabilities and behavior of young-of-the-year (YOY) lake sturgeon (Acipenser fulvescens). At ecologically relevant concentrations of TFM there was reduced olfactory response to all three cues (l-alanine, taurocholic acid, food cue) tested, suggesting that TFM inhibits both olfactory sensory neurons tested. Sturgeon exposed to TFM also showed a reduced attraction to the scent of food and reduced consumption of food relative to unexposed fish. Exposed fish were more active than control fish, but with slower acceleration. Fish were able to detect the scent of TFM, but failed to avoid it in behavioral trials. The connection between neurophysiological and behavioral changes, and the commonality of habitats between sturgeon and lamprey ammocoetes, suggests that there may be effects at the ecosystem level in streams that undergo lamprey control treatments.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Sakamoto, Kathrine" sort="Sakamoto, Kathrine" uniqKey="Sakamoto K" first="Kathrine" last="Sakamoto">Kathrine Sakamoto</name></noRegion><name sortKey="Dew, William A" sort="Dew, William A" uniqKey="Dew W" first="William A" last="Dew">William A. Dew</name><name sortKey="Hecnar, Stephen J" sort="Hecnar, Stephen J" uniqKey="Hecnar S" first="Stephen J" last="Hecnar">Stephen J. Hecnar</name><name sortKey="Pyle, Gregory G" sort="Pyle, Gregory G" uniqKey="Pyle G" first="Gregory G" last="Pyle">Gregory G. Pyle</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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