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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.14532
|2 doi
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|a pubmed24n0973.xml
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|a (NLM)30561876
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Williams, Chase R
|e verfasserin
|4 aut
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|a Elevated CO2 impairs olfactory-mediated neural and behavioral responses and gene expression in ocean-phase coho salmon (Oncorhynchus kisutch)
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 11.04.2019
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|a Date Revised 13.03.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Published 2018. This article is a U.S. Government work and is in the public domain in the USA.
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|a Elevated concentrations of CO2 in seawater can disrupt numerous sensory systems in marine fish. This is of particular concern for Pacific salmon because they rely on olfaction during all aspects of their life including during their homing migrations from the ocean back to their natal streams. We investigated the effects of elevated seawater CO2 on coho salmon (Oncorhynchus kisutch) olfactory-mediated behavior, neural signaling, and gene expression within the peripheral and central olfactory system. Ocean-phase coho salmon were exposed to three levels of CO2 , ranging from those currently found in ambient marine water to projected future levels. Juvenile coho salmon exposed to elevated CO2 levels for 2 weeks no longer avoided a skin extract odor that elicited avoidance responses in coho salmon maintained in ambient CO2 seawater. Exposure to these elevated CO2 levels did not alter odor signaling in the olfactory epithelium, but did induce significant changes in signaling within the olfactory bulb. RNA-Seq analysis of olfactory tissues revealed extensive disruption in expression of genes involved in neuronal signaling within the olfactory bulb of salmon exposed to elevated CO2 , with lesser impacts on gene expression in the olfactory rosettes. The disruption in olfactory bulb gene pathways included genes associated with GABA signaling and maintenance of ion balance within bulbar neurons. Our results indicate that ocean-phase coho salmon exposed to elevated CO2 can experience significant behavioral impairments likely driven by alteration in higher-order neural signal processing within the olfactory bulb. Our study demonstrates that anadromous fish such as salmon may share a sensitivity to rising CO2 levels with obligate marine species suggesting a more wide-scale ecological impact of ocean acidification
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a GABA
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|a ocean acidification
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|a olfactory bulb
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| 650 |
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|a olfactory rosette
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| 650 |
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|a salmon
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| 650 |
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|a Carbon Dioxide
|2 NLM
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| 650 |
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7 |
|a 142M471B3J
|2 NLM
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| 700 |
1 |
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|a Dittman, Andrew H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a McElhany, Paul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Busch, D Shallin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Maher, Michael T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bammler, Theo K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a MacDonald, James W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gallagher, Evan P
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 25(2019), 3 vom: 11. März, Seite 963-977
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:25
|g year:2019
|g number:3
|g day:11
|g month:03
|g pages:963-977
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.14532
|3 Volltext
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