Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water
Precise measurements were conducted in continuous flow seawater mesocosms located in full sunlight that compared metabolic response of coral, coral-macroalgae and macroalgae systems over a diurnal cycle. Irradiance controlled net photosynthesis (Pnet), which in turn drove net calcification (Gnet), a...
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Format: | Dataset |
Language: | English |
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PANGAEA
2014
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.839068 https://doi.org/10.1594/PANGAEA.839068 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.839068 |
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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 total Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coast and continental shelf Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gracillaria salicornia Irradiance Laboratory experiment Macroalgae Mesocosm or benthocosm Montipora capitata Net calcification rate of calcium carbonate Net photosynthesis rate North Pacific OA-ICC Ocean Acidification International Coordination Centre Other Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Plantae Potentiometric Potentiometric titration Primary production/Photosynthesis Rhodophyta Salinity Single species Species Species interaction Temperature water Time of day Tropical |
spellingShingle |
Alkalinity total Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coast and continental shelf Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gracillaria salicornia Irradiance Laboratory experiment Macroalgae Mesocosm or benthocosm Montipora capitata Net calcification rate of calcium carbonate Net photosynthesis rate North Pacific OA-ICC Ocean Acidification International Coordination Centre Other Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Plantae Potentiometric Potentiometric titration Primary production/Photosynthesis Rhodophyta Salinity Single species Species Species interaction Temperature water Time of day Tropical Jokiel, Paul L Jury, Christopher P Rodgers, Ku'ulei Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
topic_facet |
Alkalinity total Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coast and continental shelf Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gracillaria salicornia Irradiance Laboratory experiment Macroalgae Mesocosm or benthocosm Montipora capitata Net calcification rate of calcium carbonate Net photosynthesis rate North Pacific OA-ICC Ocean Acidification International Coordination Centre Other Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Plantae Potentiometric Potentiometric titration Primary production/Photosynthesis Rhodophyta Salinity Single species Species Species interaction Temperature water Time of day Tropical |
description |
Precise measurements were conducted in continuous flow seawater mesocosms located in full sunlight that compared metabolic response of coral, coral-macroalgae and macroalgae systems over a diurnal cycle. Irradiance controlled net photosynthesis (Pnet), which in turn drove net calcification (Gnet), and altered pH. Pnet exerted the dominant control on [CO3]2- and aragonite saturation state (Omega arag) over the diel cycle. Dark calcification rate decreased after sunset, reaching zero near midnight followed by an increasing rate that peaked at 03:00 h. Changes in Omega arag and pH lagged behind Gnet throughout the daily cycle by two or more hours. The flux rate Pnet was the primary driver of calcification. Daytime coral metabolism rapidly removes dissolved inorganic carbon (DIC) from the bulk seawater and photosynthesis provides the energy that drives Gnet while increasing the bulk water pH. These relationships result in a correlation between Gnet and Omega arag, with Omega arag as the dependent variable. High rates of H+ efflux continued for several hours following mid-day peak Gnet suggesting that corals have difficulty in shedding waste protons as described by the Proton Flux Hypothesis. DIC flux (uptake) followed Pnet and Gnet and dropped off rapidly following peak Pnet and peak Gnet indicating that corals can cope more effectively with the problem of limited DIC supply compared to the problem of eliminating H+. Over a 24 h period the plot of total alkalinity (AT) versus DIC as well as the plot of Gnet versus Omega arag revealed a circular hysteresis pattern over the diel cycle in the coral and coral-algae mesocosms, but not the macroalgae mesocosm. Presence of macroalgae did not change Gnet of the corals, but altered the relationship between Omega arag and Gnet. Predictive models of how future global changes will effect coral growth that are based on oceanic Omega arag must include the influence of future localized Pnet on Gnet and changes in rate of reef carbonate dissolution. The correlation between Omega ... |
format |
Dataset |
author |
Jokiel, Paul L Jury, Christopher P Rodgers, Ku'ulei |
author_facet |
Jokiel, Paul L Jury, Christopher P Rodgers, Ku'ulei |
author_sort |
Jokiel, Paul L |
title |
Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
title_short |
Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
title_full |
Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
title_fullStr |
Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
title_full_unstemmed |
Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water |
title_sort |
coral-algae metabolism and diurnal changes in the co2-carbonate system of bulk sea water |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.839068 https://doi.org/10.1594/PANGAEA.839068 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Jokiel, Paul L; Jury, Christopher P; Rodgers, Ku'ulei (2014): Coral-algae metabolism and diurnal changes in the CO2-carbonate systemof bulk sea water. PeerJ, 2, e378, https://doi.org/10.7717/peerj.378 |
op_relation |
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.839068 https://doi.org/10.1594/PANGAEA.839068 |
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.839068 https://doi.org/10.7717/peerj.378 |
_version_ |
1766159605966045184 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.839068 2023-05-15T17:52:13+02:00 Coral-algae metabolism and diurnal changes in the CO2-carbonate system of bulk sea water Jokiel, Paul L Jury, Christopher P Rodgers, Ku'ulei 2014-05-07 text/tab-separated-values, 2166 data points https://doi.pangaea.de/10.1594/PANGAEA.839068 https://doi.org/10.1594/PANGAEA.839068 en eng PANGAEA Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.839068 https://doi.org/10.1594/PANGAEA.839068 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Jokiel, Paul L; Jury, Christopher P; Rodgers, Ku'ulei (2014): Coral-algae metabolism and diurnal changes in the CO2-carbonate systemof bulk sea water. PeerJ, 2, e378, https://doi.org/10.7717/peerj.378 Alkalinity total Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coast and continental shelf Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gracillaria salicornia Irradiance Laboratory experiment Macroalgae Mesocosm or benthocosm Montipora capitata Net calcification rate of calcium carbonate Net photosynthesis rate North Pacific OA-ICC Ocean Acidification International Coordination Centre Other Oxygen Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Plantae Potentiometric Potentiometric titration Primary production/Photosynthesis Rhodophyta Salinity Single species Species Species interaction Temperature water Time of day Tropical Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.839068 https://doi.org/10.7717/peerj.378 2023-01-20T09:04:40Z Precise measurements were conducted in continuous flow seawater mesocosms located in full sunlight that compared metabolic response of coral, coral-macroalgae and macroalgae systems over a diurnal cycle. Irradiance controlled net photosynthesis (Pnet), which in turn drove net calcification (Gnet), and altered pH. Pnet exerted the dominant control on [CO3]2- and aragonite saturation state (Omega arag) over the diel cycle. Dark calcification rate decreased after sunset, reaching zero near midnight followed by an increasing rate that peaked at 03:00 h. Changes in Omega arag and pH lagged behind Gnet throughout the daily cycle by two or more hours. The flux rate Pnet was the primary driver of calcification. Daytime coral metabolism rapidly removes dissolved inorganic carbon (DIC) from the bulk seawater and photosynthesis provides the energy that drives Gnet while increasing the bulk water pH. These relationships result in a correlation between Gnet and Omega arag, with Omega arag as the dependent variable. High rates of H+ efflux continued for several hours following mid-day peak Gnet suggesting that corals have difficulty in shedding waste protons as described by the Proton Flux Hypothesis. DIC flux (uptake) followed Pnet and Gnet and dropped off rapidly following peak Pnet and peak Gnet indicating that corals can cope more effectively with the problem of limited DIC supply compared to the problem of eliminating H+. Over a 24 h period the plot of total alkalinity (AT) versus DIC as well as the plot of Gnet versus Omega arag revealed a circular hysteresis pattern over the diel cycle in the coral and coral-algae mesocosms, but not the macroalgae mesocosm. Presence of macroalgae did not change Gnet of the corals, but altered the relationship between Omega arag and Gnet. Predictive models of how future global changes will effect coral growth that are based on oceanic Omega arag must include the influence of future localized Pnet on Gnet and changes in rate of reef carbonate dissolution. The correlation between Omega ... Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Pacific |