Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ...
Dissolved organic/inorganic carbon and oxygen fluxes from whole sediment core incubations subject to temperature and ocean acidification manipulations. Estuaries make a disproportionately large contribution of dissolved organic carbon (DOC) to the global carbon cycle, but it is unknown how this will...
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Online Access: | https://dx.doi.org/10.1594/pangaea.924460 https://doi.pangaea.de/10.1594/PANGAEA.924460 |
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ftdatacite:10.1594/pangaea.924460 2024-02-27T08:44:11+00:00 Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... Simone, Michelle Schulz, Kai Oakes, Joanne Eyre, Bradley D 2020 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.924460 https://doi.pangaea.de/10.1594/PANGAEA.924460 en eng PANGAEA https://dx.doi.org/10.5194/bg-18-1823-2021 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 estuaries Ocean acidification sediment warming Treatment Time point, descriptive Replicates DEPTH, sediment/rock DEPTH, water Surface area Volume Time in minutes Salinity Temperature, water Oxygen saturation Carbon, inorganic, dissolved Carbon, organic, dissolved pH Experiment Salinometer Temperature sensor LDO-probe AIRICA analyzer Miranda TOC analyser, Aurora 1030W pH probe dataset Dataset 2020 ftdatacite https://doi.org/10.1594/pangaea.92446010.5194/bg-18-1823-2021 2024-02-01T14:40:04Z Dissolved organic/inorganic carbon and oxygen fluxes from whole sediment core incubations subject to temperature and ocean acidification manipulations. Estuaries make a disproportionately large contribution of dissolved organic carbon (DOC) to the global carbon cycle, but it is unknown how this will change under a future climate. As such, the response of DOC fluxes from microbially dominated unvegetated sediments to individual and combined future climate stressors of warming (from Δ-3 °C to Δ+5 °C on ambient mean temperatures) and ocean acidification (OA, ~2 times the current partial pressure of CO2, pCO2) was investigated ex situ. Warming alone increased sediment heterotrophy, resulting in a proportional increase in sediment DOC uptake, with sediments becoming net sinks of DOC (3.5 to 8.8 mmol-C m-2 d-1) at warmer temperatures (Δ+3 °C and Δ+5 °C, respectively). This temperature response changed under OA conditions, with sediments becoming more autotrophic and a greater sink of DOC (1 to 4 times greater than ... : * DOC: DOC concentrations were measured via continuous-flow wet-oxidation using an Aurora 1030W total organic carbon analyser.* pH: calibrated to 3-point NIST buffer scale (R^2^ = 0.99). ... Dataset Ocean acidification DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
estuaries Ocean acidification sediment warming Treatment Time point, descriptive Replicates DEPTH, sediment/rock DEPTH, water Surface area Volume Time in minutes Salinity Temperature, water Oxygen saturation Carbon, inorganic, dissolved Carbon, organic, dissolved pH Experiment Salinometer Temperature sensor LDO-probe AIRICA analyzer Miranda TOC analyser, Aurora 1030W pH probe |
spellingShingle |
estuaries Ocean acidification sediment warming Treatment Time point, descriptive Replicates DEPTH, sediment/rock DEPTH, water Surface area Volume Time in minutes Salinity Temperature, water Oxygen saturation Carbon, inorganic, dissolved Carbon, organic, dissolved pH Experiment Salinometer Temperature sensor LDO-probe AIRICA analyzer Miranda TOC analyser, Aurora 1030W pH probe Simone, Michelle Schulz, Kai Oakes, Joanne Eyre, Bradley D Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
topic_facet |
estuaries Ocean acidification sediment warming Treatment Time point, descriptive Replicates DEPTH, sediment/rock DEPTH, water Surface area Volume Time in minutes Salinity Temperature, water Oxygen saturation Carbon, inorganic, dissolved Carbon, organic, dissolved pH Experiment Salinometer Temperature sensor LDO-probe AIRICA analyzer Miranda TOC analyser, Aurora 1030W pH probe |
description |
Dissolved organic/inorganic carbon and oxygen fluxes from whole sediment core incubations subject to temperature and ocean acidification manipulations. Estuaries make a disproportionately large contribution of dissolved organic carbon (DOC) to the global carbon cycle, but it is unknown how this will change under a future climate. As such, the response of DOC fluxes from microbially dominated unvegetated sediments to individual and combined future climate stressors of warming (from Δ-3 °C to Δ+5 °C on ambient mean temperatures) and ocean acidification (OA, ~2 times the current partial pressure of CO2, pCO2) was investigated ex situ. Warming alone increased sediment heterotrophy, resulting in a proportional increase in sediment DOC uptake, with sediments becoming net sinks of DOC (3.5 to 8.8 mmol-C m-2 d-1) at warmer temperatures (Δ+3 °C and Δ+5 °C, respectively). This temperature response changed under OA conditions, with sediments becoming more autotrophic and a greater sink of DOC (1 to 4 times greater than ... : * DOC: DOC concentrations were measured via continuous-flow wet-oxidation using an Aurora 1030W total organic carbon analyser.* pH: calibrated to 3-point NIST buffer scale (R^2^ = 0.99). ... |
format |
Dataset |
author |
Simone, Michelle Schulz, Kai Oakes, Joanne Eyre, Bradley D |
author_facet |
Simone, Michelle Schulz, Kai Oakes, Joanne Eyre, Bradley D |
author_sort |
Simone, Michelle |
title |
Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
title_short |
Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
title_full |
Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
title_fullStr |
Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
title_full_unstemmed |
Oxygen and carbon fluxes from shallow unvegetated sediments in the Clarence Estuary, NSW, Australia under warming and ocean acidification conditions ... |
title_sort |
oxygen and carbon fluxes from shallow unvegetated sediments in the clarence estuary, nsw, australia under warming and ocean acidification conditions ... |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://dx.doi.org/10.1594/pangaea.924460 https://doi.pangaea.de/10.1594/PANGAEA.924460 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://dx.doi.org/10.5194/bg-18-1823-2021 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.92446010.5194/bg-18-1823-2021 |
_version_ |
1792052574887608320 |