Seawater carbonate chemistry and individual or group behaviour of a temperate damselfish ...

Open ocean surface CO2 levels are projected to reach approximately 800 µatm, and ocean pH to decrease by approximately 0.3 units by the year 2100 due to anthropogenic CO2 emissions and the subsequent process of ocean acidification (OA). When exposed to these CO2/pH values, several fish species displ...

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Bibliographic Details
Main Authors: Kwan, Garfield Tsz, Hamilton, Trevor James, Tresguerres, Martin
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
pH
Online Access:https://dx.doi.org/10.1594/pangaea.958996
https://doi.pangaea.de/10.1594/PANGAEA.958996
Description
Summary:Open ocean surface CO2 levels are projected to reach approximately 800 µatm, and ocean pH to decrease by approximately 0.3 units by the year 2100 due to anthropogenic CO2 emissions and the subsequent process of ocean acidification (OA). When exposed to these CO2/pH values, several fish species display abnormal behaviour in laboratory tests, an effect proposed to be linked to altered neuronal GABAA receptor function. Juvenile blacksmith (Chromis punctipinnis) are social fish that regularly experience CO2/pH fluctuations through kelp forest diurnal primary production and upwelling events, so we hypothesized that they might be resilient to OA. Blacksmiths were exposed to control conditions (pH 7.92; pCO2 540 µatm), constant acidification (pH 7.71; pCO2 921 µatm) and oscillating acidification (pH 7.91, pCO2 560 µatm (day), pH 7.70, pCO2 955 µatm (night)), and caught and tested in two seasons of the year when the ocean temperature was different: winter (16.5 ± 0.1°C) and summer (23.1 ± 0.1°C). Neither constant ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2023-05-15. ...