Diel p CO 2 fluctuations alter the molecular response of coral reef fishes to ocean acidification conditions

2021 ◽  
Vol 30 (20) ◽  
pp. 5105-5118
Author(s):  
Celia Schunter ◽  
Michael D. Jarrold ◽  
Philip L. Munday ◽  
Timothy Ravasi
Keyword(s):  
Coral Reef ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Molecular Response

scholarly journals Diel CO2 fluctuations alter the molecular response of coral reef fishes to ocean acidification conditions

2021 ◽  
Author(s):  
Celia Schunter ◽  
Michael D Jarrold ◽  
Philip L Munday ◽  
Timothy Ravasi
Keyword(s):  
Coral Reef ◽  
Ocean Acidification ◽  
Brain Activity ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Molecular Response ◽  
Transcriptional Program ◽  
Amphiprion Percula ◽  
Underlying Mechanisms ◽  
The Brain

Environmental CO2 variation can modify the responses of marine organisms to ocean acidification, yet the underlying mechanisms for this effect remain unclear. On coral reefs, environmental CO2 fluctuates on a regular day-night cycle. Effects of future ocean acidification on coral reef fishes might therefore depend on their response to this diel cycle of CO2. To evaluate the effects on the brain molecular response, we exposed two common reef fishes (Acanthochromis polyacanthus and Amphiprion percula) to two projected future CO2 levels (750 and 1,000 microatmospheres) under both stable and diel fluctuating conditions. We found a common signature to stable elevated pCO2 for both species, which included the downregulation of immediate early genes, indicating lower brain activity. The transcriptional program was more strongly affected by higher average CO2 in a stable treatment than for fluctuating treatments, however, the largest difference in molecular response was between stable and fluctuating CO2 treatments. This indicates that a response to a change in environmental CO2 conditions is different for organisms living in a fluctuating than in stable environments. The differential regulation was related to steroid hormones and circadian rhythm (CR). Both species exhibited a marked difference in the expression of CR genes among CO2 treatments, possibly accommodating a more flexible adaptive approach to acid-base control, which could explain reduced impairment. Our results suggest that environmental CO2 fluctuations might enable reef fishes to phase shift their clocks and anticipate CO2 changes, thereby avoiding impairments and more successfully adjust to ocean acidification conditions.

Ocean acidification does not impair the behaviour of coral reef fishes

Nature ◽  
2020 ◽  
Vol 577 (7790) ◽  
pp. 370-375 ◽  
Author(s):  
Timothy D. Clark ◽  
Graham D. Raby ◽  
Dominique G. Roche ◽  
Sandra A. Binning ◽  
Ben Speers-Roesch ◽  
...  
Keyword(s):  
Coral Reef ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes

Intrageneric variation in antipredator responses of coral reef fishes affected by ocean acidification: implications for climate change projections on marine communities

2011 ◽  
Vol 17 (9) ◽  
pp. 2980-2986 ◽  
Author(s):  
MAUD C. O. FERRARI ◽  
DANIELLE L. DIXSON ◽  
PHILIP L. MUNDAY ◽  
MARK I. McCORMICK ◽  
MARK G. MEEKAN ◽  
...  
Keyword(s):  
Climate Change ◽  
Coral Reef ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Climate Change Projections ◽  
Marine Communities ◽  
Antipredator Responses

Effects of ocean acidification on visual risk assessment in coral reef fishes

2012 ◽  
Vol 26 (3) ◽  
pp. 553-558 ◽  
Author(s):  
Maud C. O. Ferrari ◽  
Mark I. McCormick ◽  
Philip L. Munday ◽  
Mark G. Meekan ◽  
Danielle L. Dixson ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Coral Reef ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes

scholarly journals Species-specific molecular responses of wild coral reef fishes during a marine heatwave

2020 ◽  
Vol 6 (12) ◽  
pp. eaay3423 ◽  
Author(s):  
Moisés A. Bernal ◽  
Celia Schunter ◽  
Robert Lehmann ◽  
Damien J. Lightfoot ◽  
Bridie J. M. Allan ◽  
...  
Keyword(s):  
Coral Reef ◽  
Elevated Temperatures ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Molecular Response ◽  
Functional Responses ◽  
Molecular Responses ◽  
Thermal Anomalies ◽  
Multiple Species ◽  
Species Specific

The marine heatwave of 2016 was one of the longest and hottest thermal anomalies recorded on the Great Barrier Reef, influencing multiple species of marine ectotherms, including coral reef fishes. There is a gap in our understanding of what the physiological consequences of heatwaves in wild fish populations are. Thus, in this study, we used liver transcriptomes to understand the molecular response of five species to the 2016 heatwave conditions. Gene expression was species specific, yet we detected overlap in functional responses associated with thermal stress previously reported in experimental setups. The molecular response was also influenced by the duration of exposure to elevated temperatures. This study highlights the importance of considering the effects of extreme warming events when evaluating the consequences of climate change on fish communities.

scholarly journals Interacting effects of elevated temperature and ocean acidification on the aerobic performance of coral reef fishes

2009 ◽  
Vol 388 ◽  
pp. 235-242 ◽  
Author(s):  
PL Munday ◽  
NE Crawley ◽  
GE Nilsson
Keyword(s):  
Coral Reef ◽  
Elevated Temperature ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Aerobic Performance

scholarly journals Effects of Ocean Acidification on Learning in Coral Reef Fishes

PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e31478 ◽  
Author(s):  
Maud C. O. Ferrari ◽  
Rachel P. Manassa ◽  
Danielle L. Dixson ◽  
Philip L. Munday ◽  
Mark I. McCormick ◽  
...  
Keyword(s):  
Coral Reef ◽  
Ocean Acidification ◽  
Reef Fishes ◽  
Coral Reef Fishes

scholarly journals Basic Principles Underlying Research Projects on the Links between the Ecology and the Uses of Coral Reef Fishes in the Pacific

2004 ◽  
pp. 119-158
Author(s):  
Michel Kulbicki ◽  
Pierre Labrosse ◽  
Joceline Ferraris
Keyword(s):  
Coral Reef ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Research Projects ◽  
Basic Principles ◽  
The Pacific

Grazing pressure of herbivorous coral reef fishes on low coral-cover reefs

Coral Reefs ◽  
2006 ◽  
Vol 25 (3) ◽  
pp. 461-472 ◽  
Author(s):  
Michelle J. Paddack ◽  
Robert K. Cowen ◽  
Su Sponaugle
Keyword(s):  
Coral Reef ◽  
Coral Cover ◽  
Reef Fishes ◽  
Grazing Pressure ◽  
Coral Reef Fishes
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