Publication Date:
2024-03-15
Description:
In the recent discussion how biotic systems may react to ocean acidification caused by the rapid rise in carbon dioxide partial pressure (pCO2) in the marine realm, substantial research is devoted to calcifiers such as stony corals. The antagonistic process-biologically induced carbonate dissolution via bioerosion- has largely been neglected. Unlike skeletal growth, we expect bioerosion by chemical means to be facilitated in a high-CO2 world. This study focuses on one of the most detrimental bioeroders, the sponge Cliona orientalis, which attacks and kills live corals on Australia's Great Barrier Reef. Experimental exposure to lowered and elevated levels of pCO2 confirms a significant enforcement of the sponges' bioerosion capacity with increasing pCO2 under more acidic conditions. Considering the substantial contribution of sponges to carbonate bioerosion, this finding implies that tropical reef ecosystems are facing the combined effects of weakened coral calcification and accelerated bioerosion, resulting in critical pressure on the dynamic balance between biogenic carbonate build-up and degradation.
Keywords:
Alkalinity, total; Alkalinity, total, standard deviation; Ammonium; Ammonium, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Bioerosion rate; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Cliona orientalis; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Coulometric titration; Figure; Fluorescence, minimum; Fluorescence, minimum, standard deviation; Fluorometric; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Luminous intensity; Luminous intensity, standard deviation; Mass; Mass, standard deviation; Mass change; Mass change, standard deviation; Maximum photochemical quantum yield of photosystem II; Maximum photochemical quantum yield of photosystem II, standard deviation; Nitrate; Nitrate, standard deviation; Nitrite; Nitrite, standard deviation; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, respiration, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Penetration depth; Penetration depth, standard deviation; pH; pH, standard deviation; Phosphate; Phosphate, standard deviation; Porifera; Potentiometric; Potentiometric titration; Salinity; Salinity, standard deviation; Silicate; Silicate, standard deviation; Single species; South Pacific; Species; Spectrophotometric; Table; Temperature, water; Temperature, water, standard deviation; Time point, descriptive; Treatment; Tropical
Type:
Dataset
Format:
text/tab-separated-values, 2160 data points
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