Data from: CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish

Kwan GT, Hamilton TJ, Tresguerres M

Date Published: June 9, 2017

DOI: http://dx.doi.org/10.5061/dryad.2m353

 

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Title Kwan et al.,Dryad_data_Final
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Description Due to anthropogenic CO<sub>2</sub> emissions and the subsequent process of ocean acidification (OA), open ocean surface CO<sub>2</sub> levels are projected to more than double to ~1,000 μatm, and pH to decrease by ~0.3 units by the year 2100. When exposed to these CO<sub>2</sub>/pH values, several fish species display abnormal behaviour in laboratory tests, an effect proposed to be linked to altered neuronal GABA<sub>A</sub> receptor function. This study examined the effects of constant and oscillating OA-like conditions on individual and group behaviour of juvenile blacksmith (<i>Chromis punctipinnis</i>), a social fish that regularly experiences CO<sub>2</sub>/pH fluctuations through kelp forest diurnal primary production and upwelling events. Blacksmiths were exposed to three treatments: control (pH ~7.92; pCO<sub>2</sub> ~540 μatm); constant acidification (pH ~7.72; pCO<sub>2</sub> ~920 μatm); and oscillating acidification (pH ~7.92, pCO<sub>2</sub> ~560 μatm (day), pH ~7.75, pCO<sub>2</sub> ~955 μatm (night)). After seven and eleven days, respectively, blacksmiths were administered individual light/dark preference and group shoaling tests, which are well-validated measures of anxiety-like behaviour and are modulated by GABA<sub>A</sub> receptors. In addition, to investigate potential interactions between OA and season of the year, the effect of CO<sub>2</sub>/pH on individual blacksmith behaviour was tested in January (16.50 ± 0.01<sup>o</sup>C) and September (23.10 ± 0.01 <sup>o</sup>C). While season had a significant effect on light/dark preference, oscillating acidification did not affect any behavioural parameter, suggesting blacksmiths are tolerant to projected future OA conditions.
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When using this data, please cite the original publication:

Kwan GT, Hamilton TJ, Tresguerres M (2017) CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. Royal Society Open Science 4(7): 170283. http://dx.doi.org/10.1098/rsos.170283

Additionally, please cite the Dryad data package:

Kwan GT, Hamilton TJ, Tresguerres M (2017) Data from: CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.2m353
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