Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors

Chung, Wen-Sung, Marshall, N. Justin, Watson, Sue-Ann, Munday, Philip L. and Nilsson, Goran E. (2014) Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors. Journal of Experimental Biology, 217 3: 323-326. doi:10.1242/jeb.092478


Author Chung, Wen-Sung
Marshall, N. Justin
Watson, Sue-Ann
Munday, Philip L.
Nilsson, Goran E.
Title Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors
Journal name Journal of Experimental Biology   Check publisher's open access policy
ISSN 0022-0949
1477-9145
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1242/jeb.092478
Open Access Status DOI
Volume 217
Issue 3
Start page 323
End page 326
Total pages 4
Place of publication Cambridge, United Kingdom
Publisher The Company of Biologists Ltd.
Collection year 2015
Language eng
Subject 1103 Clinical Sciences
1105 Dentistry
1312 Molecular Biology
1314 Physiology
1109 Neurosciences
1104 Complementary and Alternative Medicine
Abstract Vision is one of the most efficient senses used by animals to catch prey and avoid predators. Therefore, any deficiency in the visual system could have important consequences for individual performance. We examined the effect of CO2 levels projected to occur by the end of this century on retinal responses in a damselfish, by determining the threshold of its flicker electroretinogram (fERG). The maximal flicker frequency of the retina was reduced by continuous exposure to elevated CO2, potentially impairing the capacity of fish to react to fast events. This effect was rapidly counteracted by treatment with a GABA antagonist (gabazine), indicating that GABAA receptor function is disrupted by elevated CO2. In addition to demonstrating the effects of elevated CO2 on fast flicker fusion of marine fishes, our results show that the fish retina could be a model system to study the effects of high CO2 on neural processing.
Keyword Carbon dioxide
Coral reef
Electroretinogram
Flicker fusion frequency
Vision
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2015 Collection
 
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