CO2-induced ocean acidification does not affect individual or group behaviour in 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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ftcdlib:oai:escholarship.org:ark:/13030/qt5q4308sx 2023-05-15T17:50:40+02:00 CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. Kwan, Garfield Tsz Hamilton, Trevor James Tresguerres, Martin 170283 2017-07-01 https://escholarship.org/uc/item/5q4308sx unknown eScholarship, University of California qt5q4308sx https://escholarship.org/uc/item/5q4308sx public Royal Society open science, vol 4, iss 7 GABA anxiety blacksmith climate change shoaling upwelling article 2017 ftcdlib 2022-07-25T17:30:36Z 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 nor oscillating CO2-induced acidification affected blacksmith individual light/dark preference, inter-individual distance in a shoal or the shoal's response to a novel object, suggesting that blacksmiths are tolerant to projected future OA conditions. However, blacksmiths tested during the winter demonstrated significantly higher dark preference in the individual light/dark preference test, thus confirming season and/or water temperature as relevant factors to consider in behavioural tests. Article in Journal/Newspaper Ocean acidification University of California: eScholarship |
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Open Polar |
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University of California: eScholarship |
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GABA anxiety blacksmith climate change shoaling upwelling |
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GABA anxiety blacksmith climate change shoaling upwelling Kwan, Garfield Tsz Hamilton, Trevor James Tresguerres, Martin CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
topic_facet |
GABA anxiety blacksmith climate change shoaling upwelling |
description |
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 nor oscillating CO2-induced acidification affected blacksmith individual light/dark preference, inter-individual distance in a shoal or the shoal's response to a novel object, suggesting that blacksmiths are tolerant to projected future OA conditions. However, blacksmiths tested during the winter demonstrated significantly higher dark preference in the individual light/dark preference test, thus confirming season and/or water temperature as relevant factors to consider in behavioural tests. |
format |
Article in Journal/Newspaper |
author |
Kwan, Garfield Tsz Hamilton, Trevor James Tresguerres, Martin |
author_facet |
Kwan, Garfield Tsz Hamilton, Trevor James Tresguerres, Martin |
author_sort |
Kwan, Garfield Tsz |
title |
CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
title_short |
CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
title_full |
CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
title_fullStr |
CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
title_full_unstemmed |
CO2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
title_sort |
co2-induced ocean acidification does not affect individual or group behaviour in a temperate damselfish. |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/5q4308sx |
op_coverage |
170283 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Royal Society open science, vol 4, iss 7 |
op_relation |
qt5q4308sx https://escholarship.org/uc/item/5q4308sx |
op_rights |
public |
_version_ |
1766157513270493184 |