The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments
Ocean acidification (OA) is expected to reduce the net ecosystem calcification (NEC) rates and overall accretion of coral reef ecosystems. However, despite the fact that sediments are the most abundant form of calcium carbonate (CaCO3) in coral reef ecosystems and their dissolution may be more sensi...
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Language: | English |
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PANGAEA
2016
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.867130 https://doi.org/10.1594/PANGAEA.867130 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.867130 |
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openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total flux Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Dissolution rate Entire community Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Irradiance Laboratory experiment Light Net dissolution rate of calcium carbonate Net primary production of oxygen OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Primary production/Photosynthesis Respiration Respiration rate community Rocky-shore community Salinity South Pacific Temperature water Treatment Tropical Type |
spellingShingle |
Alkalinity total flux Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Dissolution rate Entire community Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Irradiance Laboratory experiment Light Net dissolution rate of calcium carbonate Net primary production of oxygen OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Primary production/Photosynthesis Respiration Respiration rate community Rocky-shore community Salinity South Pacific Temperature water Treatment Tropical Type Cyronak, Tyler Eyre, Bradley D The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
topic_facet |
Alkalinity total flux Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Dissolution rate Entire community Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Irradiance Laboratory experiment Light Net dissolution rate of calcium carbonate Net primary production of oxygen OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Primary production/Photosynthesis Respiration Respiration rate community Rocky-shore community Salinity South Pacific Temperature water Treatment Tropical Type |
description |
Ocean acidification (OA) is expected to reduce the net ecosystem calcification (NEC) rates and overall accretion of coral reef ecosystems. However, despite the fact that sediments are the most abundant form of calcium carbonate (CaCO3) in coral reef ecosystems and their dissolution may be more sensitive to OA than biogenic calcification, the impacts of OA induced sediment dissolution on coral reef NEC rates and CaCO3 accretion are poorly constrained. Carbon dioxide addition and light attenuation experiments were performed at Heron Island, Australia in an attempt to tease apart the influence of OA and organic metabolism (e.g. respiratory CO2 production) on CaCO3 dissolution. Overall, CaCO3 dissolution rates were an order of magnitude more sensitive to elevated CO2 and decreasing seawater aragonite saturation state (Omega Ar; 300-420% increase in dissolution per unit decrease in Omega Ar) than published reductions in biologically mediated calcification due to OA. Light attenuation experiments led to a 70% reduction in net primary production (NPP), which subsequently induced an increase in daytime (115%) and net diel (375%) CaCO3 dissolution rates. High CO2 and low light acted in synergy to drive a 575% increase in net diel dissolution rates. Importantly, disruptions to the balance of photosynthesis and respiration (P/R) had a significant effect on daytime CaCO3 dissolution, while average water column ?Ar was the main driver of nighttime dissolution rates. A simple model of platform-integrated dissolution rates was developed demonstrating that seasonal changes in photosynthetically active radiation (PAR) can have an important effect on platform integrated CaCO3 sediment dissolution rates. The considerable response of CaCO3 sediment dissolution to elevated CO2 means that much of the response of coral reef communities and ecosystems to OA could be due to increases in CaCO3 sediment and framework dissolution, and not decreases in biogenic calcification. |
format |
Dataset |
author |
Cyronak, Tyler Eyre, Bradley D |
author_facet |
Cyronak, Tyler Eyre, Bradley D |
author_sort |
Cyronak, Tyler |
title |
The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
title_short |
The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
title_full |
The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
title_fullStr |
The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
title_full_unstemmed |
The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments |
title_sort |
synergistic effects of ocean acidification and organic metabolism on calcium carbonate (caco3) dissolution in coral reef sediments |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.867130 https://doi.org/10.1594/PANGAEA.867130 |
long_lat |
ENVELOPE(-112.719,-112.719,58.384,58.384) |
geographic |
Heron Island Pacific |
geographic_facet |
Heron Island Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Cyronak, Tyler; Eyre, Bradley D (2016): The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments. Marine Chemistry, 183, 1-12, https://doi.org/10.1016/j.marchem.2016.05.001 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.867130 https://doi.org/10.1594/PANGAEA.867130 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.867130 https://doi.org/10.1016/j.marchem.2016.05.001 |
_version_ |
1766157562782154752 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.867130 2023-05-15T17:50:42+02:00 The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments Cyronak, Tyler Eyre, Bradley D 2016-10-24 text/tab-separated-values, 704 data points https://doi.pangaea.de/10.1594/PANGAEA.867130 https://doi.org/10.1594/PANGAEA.867130 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.867130 https://doi.org/10.1594/PANGAEA.867130 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Cyronak, Tyler; Eyre, Bradley D (2016): The synergistic effects of ocean acidification and organic metabolism on calcium carbonate (CaCO3) dissolution in coral reef sediments. Marine Chemistry, 183, 1-12, https://doi.org/10.1016/j.marchem.2016.05.001 Alkalinity total flux Aragonite saturation state Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcite saturation state Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Dissolution rate Entire community Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Irradiance Laboratory experiment Light Net dissolution rate of calcium carbonate Net primary production of oxygen OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Primary production/Photosynthesis Respiration Respiration rate community Rocky-shore community Salinity South Pacific Temperature water Treatment Tropical Type Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.867130 https://doi.org/10.1016/j.marchem.2016.05.001 2023-01-20T09:07:57Z Ocean acidification (OA) is expected to reduce the net ecosystem calcification (NEC) rates and overall accretion of coral reef ecosystems. However, despite the fact that sediments are the most abundant form of calcium carbonate (CaCO3) in coral reef ecosystems and their dissolution may be more sensitive to OA than biogenic calcification, the impacts of OA induced sediment dissolution on coral reef NEC rates and CaCO3 accretion are poorly constrained. Carbon dioxide addition and light attenuation experiments were performed at Heron Island, Australia in an attempt to tease apart the influence of OA and organic metabolism (e.g. respiratory CO2 production) on CaCO3 dissolution. Overall, CaCO3 dissolution rates were an order of magnitude more sensitive to elevated CO2 and decreasing seawater aragonite saturation state (Omega Ar; 300-420% increase in dissolution per unit decrease in Omega Ar) than published reductions in biologically mediated calcification due to OA. Light attenuation experiments led to a 70% reduction in net primary production (NPP), which subsequently induced an increase in daytime (115%) and net diel (375%) CaCO3 dissolution rates. High CO2 and low light acted in synergy to drive a 575% increase in net diel dissolution rates. Importantly, disruptions to the balance of photosynthesis and respiration (P/R) had a significant effect on daytime CaCO3 dissolution, while average water column ?Ar was the main driver of nighttime dissolution rates. A simple model of platform-integrated dissolution rates was developed demonstrating that seasonal changes in photosynthetically active radiation (PAR) can have an important effect on platform integrated CaCO3 sediment dissolution rates. The considerable response of CaCO3 sediment dissolution to elevated CO2 means that much of the response of coral reef communities and ecosystems to OA could be due to increases in CaCO3 sediment and framework dissolution, and not decreases in biogenic calcification. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Heron Island ENVELOPE(-112.719,-112.719,58.384,58.384) Pacific |