Seawater carbonate chemistry and processes during an experiment with coral reef, 2000
The concentration of CO2 in the atmosphere is projected to reach twice the preindustrial level by the middle of the 21st century. This increase will reduce the concentration of [CO3]2- of the surface ocean by 30% relative to the preindustrial level and will reduce the calcium carbonate saturation st...
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Format: | Dataset |
Language: | English |
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PANGAEA
2000
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.721195 https://doi.org/10.1594/PANGAEA.721195 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.721195 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity Gran titration (Gran 1950) total Alkalinity anomaly technique (Smith and Key 1975) Ammonium Aragonite saturation state Benthos Bicarbonate ion Calcification/Dissolution Calcification rate of calcium carbonate Calcite saturation state Calcium Calculated Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbon dioxide Coast and continental shelf Coulometric titration CTD Sea-Bird Date/time end Date/time start Entire community EPOCA EUR-OCEANS European network of excellence for Ocean Ecosystems Analysis European Project on Ocean Acidification EXP Experiment Experimental treatment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Ion concentration product Laboratory experiment Langdon_etal_00 LICOR quantameter (LI-COR LI-192SA) Measured Mesocosm or benthocosm Nitrate and Nitrite Not applicable OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH |
spellingShingle |
Alkalinity Gran titration (Gran 1950) total Alkalinity anomaly technique (Smith and Key 1975) Ammonium Aragonite saturation state Benthos Bicarbonate ion Calcification/Dissolution Calcification rate of calcium carbonate Calcite saturation state Calcium Calculated Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbon dioxide Coast and continental shelf Coulometric titration CTD Sea-Bird Date/time end Date/time start Entire community EPOCA EUR-OCEANS European network of excellence for Ocean Ecosystems Analysis European Project on Ocean Acidification EXP Experiment Experimental treatment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Ion concentration product Laboratory experiment Langdon_etal_00 LICOR quantameter (LI-COR LI-192SA) Measured Mesocosm or benthocosm Nitrate and Nitrite Not applicable OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Langdon, Chris Takahashi, Taro Sweeney, Colm Chipman, D W Goddard, J G Marubini, Francesca Aceves, Heather Barnett, Heidi Atkinson, M J Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
topic_facet |
Alkalinity Gran titration (Gran 1950) total Alkalinity anomaly technique (Smith and Key 1975) Ammonium Aragonite saturation state Benthos Bicarbonate ion Calcification/Dissolution Calcification rate of calcium carbonate Calcite saturation state Calcium Calculated Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbon dioxide Coast and continental shelf Coulometric titration CTD Sea-Bird Date/time end Date/time start Entire community EPOCA EUR-OCEANS European network of excellence for Ocean Ecosystems Analysis European Project on Ocean Acidification EXP Experiment Experimental treatment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Ion concentration product Laboratory experiment Langdon_etal_00 LICOR quantameter (LI-COR LI-192SA) Measured Mesocosm or benthocosm Nitrate and Nitrite Not applicable OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH |
description |
The concentration of CO2 in the atmosphere is projected to reach twice the preindustrial level by the middle of the 21st century. This increase will reduce the concentration of [CO3]2- of the surface ocean by 30% relative to the preindustrial level and will reduce the calcium carbonate saturation state of the surface ocean by an equal percentage. Using the large 2650 m3 coral reef mesocosm at the BIOSPHERE-2 facility near Tucson, Arizona, we investigated the effect of the projected changes in seawater carbonate chemistry on the calcification of coral reef organisms at the community scale. Our experimental design was to obtain a long (3.8 years) time series of the net calcification of the complete system and all relevant physical and chemical variables (temperature, salinity, light, nutrients, Ca2+,pCO2, TCO2, and total alkalinity). Periodic additions of NaHCO3, Na2CO3, and/or CaCl2 were made to change the calcium carbonate saturation state of the water. We found that there were consistent and reproducible changes in the rate of calcification in response to our manipulations of the saturation state. We show that the net community calcification rate responds to manipulations in the concentrations of both Ca2+ and [CO3]2- and that the rate is well described as a linear function of the ion concentration product, [Ca2+]0.69[[CO3]2-]. This suggests that saturation state or a closely related quantity is a primary environmental factor that influences calcification on coral reefs at the ecosystem level. We compare the sensitivity of calcification to short-term (days) and long-term (months to years) changes in saturation state and found that the response was not significantly different. This indicates that coral reef organisms do not seem to be able to acclimate to changing saturation state. The predicted decrease in coral reef calcification between the years 1880 and 2065 A.D. based on our long-term results is 40%. Previous small-scale, short-term organismal studies predicted a calcification reduction of 14-30%. This ... |
format |
Dataset |
author |
Langdon, Chris Takahashi, Taro Sweeney, Colm Chipman, D W Goddard, J G Marubini, Francesca Aceves, Heather Barnett, Heidi Atkinson, M J |
author_facet |
Langdon, Chris Takahashi, Taro Sweeney, Colm Chipman, D W Goddard, J G Marubini, Francesca Aceves, Heather Barnett, Heidi Atkinson, M J |
author_sort |
Langdon, Chris |
title |
Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
title_short |
Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
title_full |
Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
title_fullStr |
Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
title_full_unstemmed |
Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
title_sort |
seawater carbonate chemistry and processes during an experiment with coral reef, 2000 |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.721195 https://doi.org/10.1594/PANGAEA.721195 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Langdon, Chris; Takahashi, Taro; Sweeney, Colm; Chipman, D W; Goddard, J G; Marubini, Francesca; Aceves, Heather; Barnett, Heidi; Atkinson, M J (2000): Effect of calcium carbonate saturation state on the calcification rate of an experimental coral reef. Global Biogeochemical Cycles, 14(4), 639-354, https://doi.org/10.1029/1999GB001195 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.721195 https://doi.org/10.1594/PANGAEA.721195 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.72119510.1029/1999GB001195 |
_version_ |
1810469577283338240 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.721195 2024-09-15T18:28:14+00:00 Seawater carbonate chemistry and processes during an experiment with coral reef, 2000 Langdon, Chris Takahashi, Taro Sweeney, Colm Chipman, D W Goddard, J G Marubini, Francesca Aceves, Heather Barnett, Heidi Atkinson, M J 2000 text/tab-separated-values, 1008 data points https://doi.pangaea.de/10.1594/PANGAEA.721195 https://doi.org/10.1594/PANGAEA.721195 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.721195 https://doi.org/10.1594/PANGAEA.721195 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Langdon, Chris; Takahashi, Taro; Sweeney, Colm; Chipman, D W; Goddard, J G; Marubini, Francesca; Aceves, Heather; Barnett, Heidi; Atkinson, M J (2000): Effect of calcium carbonate saturation state on the calcification rate of an experimental coral reef. Global Biogeochemical Cycles, 14(4), 639-354, https://doi.org/10.1029/1999GB001195 Alkalinity Gran titration (Gran 1950) total Alkalinity anomaly technique (Smith and Key 1975) Ammonium Aragonite saturation state Benthos Bicarbonate ion Calcification/Dissolution Calcification rate of calcium carbonate Calcite saturation state Calcium Calculated Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbon dioxide Coast and continental shelf Coulometric titration CTD Sea-Bird Date/time end Date/time start Entire community EPOCA EUR-OCEANS European network of excellence for Ocean Ecosystems Analysis European Project on Ocean Acidification EXP Experiment Experimental treatment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Ion concentration product Laboratory experiment Langdon_etal_00 LICOR quantameter (LI-COR LI-192SA) Measured Mesocosm or benthocosm Nitrate and Nitrite Not applicable OA-ICC Ocean Acidification International Coordination Centre Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.72119510.1029/1999GB001195 2024-07-24T02:31:30Z The concentration of CO2 in the atmosphere is projected to reach twice the preindustrial level by the middle of the 21st century. This increase will reduce the concentration of [CO3]2- of the surface ocean by 30% relative to the preindustrial level and will reduce the calcium carbonate saturation state of the surface ocean by an equal percentage. Using the large 2650 m3 coral reef mesocosm at the BIOSPHERE-2 facility near Tucson, Arizona, we investigated the effect of the projected changes in seawater carbonate chemistry on the calcification of coral reef organisms at the community scale. Our experimental design was to obtain a long (3.8 years) time series of the net calcification of the complete system and all relevant physical and chemical variables (temperature, salinity, light, nutrients, Ca2+,pCO2, TCO2, and total alkalinity). Periodic additions of NaHCO3, Na2CO3, and/or CaCl2 were made to change the calcium carbonate saturation state of the water. We found that there were consistent and reproducible changes in the rate of calcification in response to our manipulations of the saturation state. We show that the net community calcification rate responds to manipulations in the concentrations of both Ca2+ and [CO3]2- and that the rate is well described as a linear function of the ion concentration product, [Ca2+]0.69[[CO3]2-]. This suggests that saturation state or a closely related quantity is a primary environmental factor that influences calcification on coral reefs at the ecosystem level. We compare the sensitivity of calcification to short-term (days) and long-term (months to years) changes in saturation state and found that the response was not significantly different. This indicates that coral reef organisms do not seem to be able to acclimate to changing saturation state. The predicted decrease in coral reef calcification between the years 1880 and 2065 A.D. based on our long-term results is 40%. Previous small-scale, short-term organismal studies predicted a calcification reduction of 14-30%. This ... Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |