Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments
Ocean acidification may alter the cycling of nitrogen in coastal sediment and so the sediment-seawater nitrogen flux, an important driver of pelagic productivity. To investigate how this perturbation affects the fluxes of NOX- (nitrite/nitrate), NH4+ and O2, we incubated estuarine sand and subtidal...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.887792 2024-09-15T18:28:07+00:00 Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments Vopel, Kay Del-Río, Vopel Pilditch, Conrad A MEDIAN LATITUDE: -37.142640 * MEDIAN LONGITUDE: 175.559030 * SOUTH-BOUND LATITUDE: -37.491390 * WEST-BOUND LONGITUDE: 175.170560 * NORTH-BOUND LATITUDE: -36.793890 * EAST-BOUND LONGITUDE: 175.947500 * DATE/TIME START: 2015-05-10T00:00:00 * DATE/TIME END: 2015-05-12T00:00:00 2018 text/tab-separated-values, 2627 data points https://doi.pangaea.de/10.1594/PANGAEA.887792 https://doi.org/10.1594/PANGAEA.887792 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.887792 https://doi.org/10.1594/PANGAEA.887792 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Vopel, Kay; Del-Río, Vopel; Pilditch, Conrad A (2018): Effects of CO2 enrichment on benthic primary production and inorganic nitrogen fluxes in two coastal sediments. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-017-19051-w Alkalinity total standard deviation Ammonium flux Aragonite saturation state Benthos Bicarbonate ion Calcite saturation state Calculated using CO2calc Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Difference Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hauraki_Gulf Identification Laboratory experiment Light mode Nitrate and Nitrite Nitrite and nitrate OA-ICC Ocean Acidification International Coordination Centre Other studied parameter or process Oxygen uptake Partial pressure of carbon dioxide dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.88779210.1038/s41598-017-19051-w 2024-07-24T02:31:33Z Ocean acidification may alter the cycling of nitrogen in coastal sediment and so the sediment-seawater nitrogen flux, an important driver of pelagic productivity. To investigate how this perturbation affects the fluxes of NOX- (nitrite/nitrate), NH4+ and O2, we incubated estuarine sand and subtidal silt in recirculating seawater with a CO2-adjusted pH of 8.1 and 7.9. During a 41-day incubation, the seawater kept at pH 8.1 lost 97% of its NOX- content but the seawater kept at pH 7.9 lost only 18%. Excess CO2 increased benthic photosynthesis. In the silt, this was accompanied by a reversal of the initial NOX- efflux into influx. The estuarine sand sustained its initial NOX- influx but, by the end of the incubation, released more NH4+ at pH 7.9 than at pH 8.1. We hypothesise that these effects share a common cause; excess CO2 increased the growth of benthic microalgae and so nutrient competition with ammonia oxidising bacteria (AOB). In the silt, diatoms likely outcompeted AOB for NH4+ and photosynthesis increased the dark/light fluctuations in the pore water oxygenation inhibiting nitrification and coupled nitrification/denitrification. If this is correct, then excess CO2 may lead to retention of inorganic nitrogen adding to the pressures of increasing coastal eutrophication. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(175.170560,175.947500,-36.793890,-37.491390) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard deviation Ammonium flux Aragonite saturation state Benthos Bicarbonate ion Calcite saturation state Calculated using CO2calc Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Difference Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hauraki_Gulf Identification Laboratory experiment Light mode Nitrate and Nitrite Nitrite and nitrate OA-ICC Ocean Acidification International Coordination Centre Other studied parameter or process Oxygen uptake Partial pressure of carbon dioxide |
spellingShingle |
Alkalinity total standard deviation Ammonium flux Aragonite saturation state Benthos Bicarbonate ion Calcite saturation state Calculated using CO2calc Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Difference Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hauraki_Gulf Identification Laboratory experiment Light mode Nitrate and Nitrite Nitrite and nitrate OA-ICC Ocean Acidification International Coordination Centre Other studied parameter or process Oxygen uptake Partial pressure of carbon dioxide Vopel, Kay Del-Río, Vopel Pilditch, Conrad A Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
topic_facet |
Alkalinity total standard deviation Ammonium flux Aragonite saturation state Benthos Bicarbonate ion Calcite saturation state Calculated using CO2calc Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Difference Entire community Event label EXP Experiment Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Hauraki_Gulf Identification Laboratory experiment Light mode Nitrate and Nitrite Nitrite and nitrate OA-ICC Ocean Acidification International Coordination Centre Other studied parameter or process Oxygen uptake Partial pressure of carbon dioxide |
description |
Ocean acidification may alter the cycling of nitrogen in coastal sediment and so the sediment-seawater nitrogen flux, an important driver of pelagic productivity. To investigate how this perturbation affects the fluxes of NOX- (nitrite/nitrate), NH4+ and O2, we incubated estuarine sand and subtidal silt in recirculating seawater with a CO2-adjusted pH of 8.1 and 7.9. During a 41-day incubation, the seawater kept at pH 8.1 lost 97% of its NOX- content but the seawater kept at pH 7.9 lost only 18%. Excess CO2 increased benthic photosynthesis. In the silt, this was accompanied by a reversal of the initial NOX- efflux into influx. The estuarine sand sustained its initial NOX- influx but, by the end of the incubation, released more NH4+ at pH 7.9 than at pH 8.1. We hypothesise that these effects share a common cause; excess CO2 increased the growth of benthic microalgae and so nutrient competition with ammonia oxidising bacteria (AOB). In the silt, diatoms likely outcompeted AOB for NH4+ and photosynthesis increased the dark/light fluctuations in the pore water oxygenation inhibiting nitrification and coupled nitrification/denitrification. If this is correct, then excess CO2 may lead to retention of inorganic nitrogen adding to the pressures of increasing coastal eutrophication. |
format |
Dataset |
author |
Vopel, Kay Del-Río, Vopel Pilditch, Conrad A |
author_facet |
Vopel, Kay Del-Río, Vopel Pilditch, Conrad A |
author_sort |
Vopel, Kay |
title |
Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
title_short |
Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
title_full |
Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
title_fullStr |
Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
title_full_unstemmed |
Seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
title_sort |
seawater carbonate chemistry and benthic primary production and inorganic nitrogen fluxes in two coastal sediments |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.887792 https://doi.org/10.1594/PANGAEA.887792 |
op_coverage |
MEDIAN LATITUDE: -37.142640 * MEDIAN LONGITUDE: 175.559030 * SOUTH-BOUND LATITUDE: -37.491390 * WEST-BOUND LONGITUDE: 175.170560 * NORTH-BOUND LATITUDE: -36.793890 * EAST-BOUND LONGITUDE: 175.947500 * DATE/TIME START: 2015-05-10T00:00:00 * DATE/TIME END: 2015-05-12T00:00:00 |
long_lat |
ENVELOPE(175.170560,175.947500,-36.793890,-37.491390) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Vopel, Kay; Del-Río, Vopel; Pilditch, Conrad A (2018): Effects of CO2 enrichment on benthic primary production and inorganic nitrogen fluxes in two coastal sediments. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-017-19051-w |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.887792 https://doi.org/10.1594/PANGAEA.887792 |
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.88779210.1038/s41598-017-19051-w |
_version_ |
1810469432153079808 |