Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification
Elevated CO2 levels associated with ocean acidification (OA) have been shown to alter behavioural responses in coral reef fishes. However, all studies to date have used stable pCO2 treatments, not considering the substantial diel pCO2 variation that occurs in shallow reef habitats. Here, we reared j...
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ftjamescook:oai:researchonline.jcu.edu.au:53183 2024-02-11T10:07:27+01:00 Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification Jarrold, Michael D. Humphrey, Craig McCormick, Mark I. Munday, Philip L. 2017 application/pdf https://researchonline.jcu.edu.au/53183/1/Diel%20CO2%20cycles%20reduce%20severity%20of%20behavioural%20abnormalities%20in%20coral%20reef%20fish%20under%20ocean%20acidification.pdf unknown Nature Publishing Group https://doi.org/10.1038/s41598-017-10378-y https://researchonline.jcu.edu.au/53183/ https://researchonline.jcu.edu.au/53183/1/Diel%20CO2%20cycles%20reduce%20severity%20of%20behavioural%20abnormalities%20in%20coral%20reef%20fish%20under%20ocean%20acidification.pdf Jarrold, Michael D., Humphrey, Craig, McCormick, Mark I., and Munday, Philip L. (2017) Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification. Scientific Reports, 7. open Article PeerReviewed 2017 ftjamescook https://doi.org/10.1038/s41598-017-10378-y 2024-01-22T23:41:46Z Elevated CO2 levels associated with ocean acidification (OA) have been shown to alter behavioural responses in coral reef fishes. However, all studies to date have used stable pCO2 treatments, not considering the substantial diel pCO2 variation that occurs in shallow reef habitats. Here, we reared juvenile damselfish, Acanthochromis polyacanthus, and clownfish, Amphiprion percula, at stable and diel cycling pCO2 treatments in two experiments. As expected, absolute lateralization of A. polyacanthus and response to predator cue of Am. percula were negatively affected in fish reared at stable, elevated pCO2 in both experiments. However, diel pCO2 fluctuations reduced the negative effects of OA on behaviour. Importantly, in experiment two, behavioural abnormalities that were present in fish reared at stable 750 μatm CO2 were largely absent in fish reared at 750 ± 300 μatm CO2. Overall, we show that diel pCO2 cycles can substantially reduce the severity of behavioural abnormalities caused by elevated CO2. Thus, past studies may have over-estimated the impacts of OA on the behavioural performance of coral reef fishes. Furthermore, our results suggest that diel pCO2 cycles will delay the onset of behavioural abnormalities in natural populations. Article in Journal/Newspaper Ocean acidification James Cook University, Australia: ResearchOnline@JCU Scientific Reports 7 1 |
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James Cook University, Australia: ResearchOnline@JCU |
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ftjamescook |
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Elevated CO2 levels associated with ocean acidification (OA) have been shown to alter behavioural responses in coral reef fishes. However, all studies to date have used stable pCO2 treatments, not considering the substantial diel pCO2 variation that occurs in shallow reef habitats. Here, we reared juvenile damselfish, Acanthochromis polyacanthus, and clownfish, Amphiprion percula, at stable and diel cycling pCO2 treatments in two experiments. As expected, absolute lateralization of A. polyacanthus and response to predator cue of Am. percula were negatively affected in fish reared at stable, elevated pCO2 in both experiments. However, diel pCO2 fluctuations reduced the negative effects of OA on behaviour. Importantly, in experiment two, behavioural abnormalities that were present in fish reared at stable 750 μatm CO2 were largely absent in fish reared at 750 ± 300 μatm CO2. Overall, we show that diel pCO2 cycles can substantially reduce the severity of behavioural abnormalities caused by elevated CO2. Thus, past studies may have over-estimated the impacts of OA on the behavioural performance of coral reef fishes. Furthermore, our results suggest that diel pCO2 cycles will delay the onset of behavioural abnormalities in natural populations. |
format |
Article in Journal/Newspaper |
author |
Jarrold, Michael D. Humphrey, Craig McCormick, Mark I. Munday, Philip L. |
spellingShingle |
Jarrold, Michael D. Humphrey, Craig McCormick, Mark I. Munday, Philip L. Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
author_facet |
Jarrold, Michael D. Humphrey, Craig McCormick, Mark I. Munday, Philip L. |
author_sort |
Jarrold, Michael D. |
title |
Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
title_short |
Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
title_full |
Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
title_fullStr |
Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
title_full_unstemmed |
Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
title_sort |
diel co2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
https://researchonline.jcu.edu.au/53183/1/Diel%20CO2%20cycles%20reduce%20severity%20of%20behavioural%20abnormalities%20in%20coral%20reef%20fish%20under%20ocean%20acidification.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://doi.org/10.1038/s41598-017-10378-y https://researchonline.jcu.edu.au/53183/ https://researchonline.jcu.edu.au/53183/1/Diel%20CO2%20cycles%20reduce%20severity%20of%20behavioural%20abnormalities%20in%20coral%20reef%20fish%20under%20ocean%20acidification.pdf Jarrold, Michael D., Humphrey, Craig, McCormick, Mark I., and Munday, Philip L. (2017) Diel CO2 cycles reduce severity of bahavioural abnormalities in coral reef fish under ocean acidification. Scientific Reports, 7. |
op_rights |
open |
op_doi |
https://doi.org/10.1038/s41598-017-10378-y |
container_title |
Scientific Reports |
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7 |
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1 |
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1790606010812989440 |