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

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Hauptverfasser: Kwan, Garfield Tsz, Hamilton, Trevor James, Tresguerres, Martin
Format: Dataset Open Access
Sprache:en
Veröffentlicht: PANGAEA 2023
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author Kwan, Garfield Tsz
Hamilton, Trevor James
Tresguerres, Martin
author_facet Kwan, Garfield Tsz
Hamilton, Trevor James
Tresguerres, Martin
collection Datos científicos de ciencias marinas y ambientales
contents 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 Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_958996
institution PANGAEA
language en
publishDate 2023
publisher PANGAEA
record_format pangaea
spellingShingle Seawater carbonate chemistry and individual or group behaviour of a temperate damselfish
Kwan, Garfield Tsz
Hamilton, Trevor James
Tresguerres, Martin
Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Behaviour; Bicarbonate ion; Calcite saturation state; Calcite saturation state, standard error; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Chromis punctipinnis; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Distance; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Length; Mass; Month; Nekton; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH, NBS scale; pH, standard error; pH, total scale; Salinity; Salinity, standard error; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature, water; Temperature, water, standard error; Time in seconds; Treatment; Type of study
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.
title Seawater carbonate chemistry and individual or group behaviour of a temperate damselfish
topic Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Behaviour; Bicarbonate ion; Calcite saturation state; Calcite saturation state, standard error; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chordata; Chromis punctipinnis; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Distance; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Length; Mass; Month; Nekton; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH, NBS scale; pH, standard error; pH, total scale; Salinity; Salinity, standard error; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature, water; Temperature, water, standard error; Time in seconds; Treatment; Type of study
url https://doi.org/10.1594/PANGAEA.958996