Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes
Ocean acidification (OA) and nutrient enrichment threaten the persistence of near shore ecosystems, yet little is known about their combined effects on marine organisms. Here, we show that a threefold increase in nitrogen concentrations, simulating enrichment due to coastal eutrophication or consume...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.924886 2024-09-15T18:28:03+00:00 Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes Johnson, Maggie Dorothy Carpenter, Robert C LATITUDE: -17.533000 * LONGITUDE: 149.833000 2018 text/tab-separated-values, 11905 data points https://doi.pangaea.de/10.1594/PANGAEA.924886 https://doi.org/10.1594/PANGAEA.924886 en eng PANGAEA Johnson, Maggie Dorothy; Carpenter, Robert C (2018): Nitrogen enrichment offsets direct negative effects of ocean acidification on a reef-building crustose coralline alga. Biology Letters, 14(7), 20180371, https://doi.org/10.1098/rsbl.2018.0371 Johnson, Maggie Dorothy; Carpenter, Robert C (2018): Calcification, photophysiology and treatment parameters for laboratory experiment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.887917 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2020): seacarb: seawater carbonate chemistry with R. R package version 3.2.14. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.924886 https://doi.org/10.1594/PANGAEA.924886 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Alkalinity total standard error Ammonium Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcification rate 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 Chlorophyll a Cnidaria Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Electron transport rate relative EXP Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Macro-nutrients Moorea_north_shore Nitrate and Nitrite OA-ICC Ocean Acidification International Coordination Centre dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.92488610.1098/rsbl.2018.037110.1594/PANGAEA.887917 2024-07-24T02:31:34Z Ocean acidification (OA) and nutrient enrichment threaten the persistence of near shore ecosystems, yet little is known about their combined effects on marine organisms. Here, we show that a threefold increase in nitrogen concentrations, simulating enrichment due to coastal eutrophication or consumer excretions, offset the direct negative effects of near-future OA on calcification and photophysiology of the reef-building crustose coralline alga, Porolithon onkodes. Projected near-future pCO2 levels (approx. 850 µatm) decreased calcification by 30% relative to ambient conditions. Conversely, nitrogen enrichment (nitrate + nitrite and ammonium) increased calcification by 90–130% in ambient and high pCO2 treatments, respectively. pCO2 and nitrogen enrichment interactively affected instantaneous photophysiology, with highest relative electron transport rates under high pCO2 and high nitrogen. Nitrogen enrichment alone increased concentrations of the photosynthetic pigments chlorophyll a, phycocyanin and phycoerythrin by approximately 80–450%, regardless of pCO2. These results demonstrate that nutrient enrichment can mediate direct organismal responses to OA. In natural systems, however, such direct benefits may be counteracted by simultaneous increases in negative indirect effects, such as heightened competition. Experiments exploring the effects of multiple stressors are increasingly becoming important for improving our ability to understand the ramifications of local and global change stressors in near shore ecosystems. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(149.833000,149.833000,-17.533000,-17.533000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard error Ammonium Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcification rate 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 Chlorophyll a Cnidaria Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Electron transport rate relative EXP Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Macro-nutrients Moorea_north_shore Nitrate and Nitrite OA-ICC Ocean Acidification International Coordination Centre |
spellingShingle |
Alkalinity total standard error Ammonium Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcification rate 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 Chlorophyll a Cnidaria Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Electron transport rate relative EXP Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Macro-nutrients Moorea_north_shore Nitrate and Nitrite OA-ICC Ocean Acidification International Coordination Centre Johnson, Maggie Dorothy Carpenter, Robert C Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
topic_facet |
Alkalinity total standard error Ammonium Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcification/Dissolution Calcification rate 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 Chlorophyll a Cnidaria Coast and continental shelf Containers and aquaria (20-1000 L or < 1 m**2) Electron transport rate relative EXP Experiment Flow rate Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Identification Irradiance Laboratory experiment Macro-nutrients Moorea_north_shore Nitrate and Nitrite OA-ICC Ocean Acidification International Coordination Centre |
description |
Ocean acidification (OA) and nutrient enrichment threaten the persistence of near shore ecosystems, yet little is known about their combined effects on marine organisms. Here, we show that a threefold increase in nitrogen concentrations, simulating enrichment due to coastal eutrophication or consumer excretions, offset the direct negative effects of near-future OA on calcification and photophysiology of the reef-building crustose coralline alga, Porolithon onkodes. Projected near-future pCO2 levels (approx. 850 µatm) decreased calcification by 30% relative to ambient conditions. Conversely, nitrogen enrichment (nitrate + nitrite and ammonium) increased calcification by 90–130% in ambient and high pCO2 treatments, respectively. pCO2 and nitrogen enrichment interactively affected instantaneous photophysiology, with highest relative electron transport rates under high pCO2 and high nitrogen. Nitrogen enrichment alone increased concentrations of the photosynthetic pigments chlorophyll a, phycocyanin and phycoerythrin by approximately 80–450%, regardless of pCO2. These results demonstrate that nutrient enrichment can mediate direct organismal responses to OA. In natural systems, however, such direct benefits may be counteracted by simultaneous increases in negative indirect effects, such as heightened competition. Experiments exploring the effects of multiple stressors are increasingly becoming important for improving our ability to understand the ramifications of local and global change stressors in near shore ecosystems. |
format |
Dataset |
author |
Johnson, Maggie Dorothy Carpenter, Robert C |
author_facet |
Johnson, Maggie Dorothy Carpenter, Robert C |
author_sort |
Johnson, Maggie Dorothy |
title |
Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
title_short |
Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
title_full |
Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
title_fullStr |
Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
title_full_unstemmed |
Seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of Porolithon onkodes |
title_sort |
seawater carbonate chemistry and net calcification, relative electron transport rates and photosynthetic pigments of porolithon onkodes |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.924886 https://doi.org/10.1594/PANGAEA.924886 |
op_coverage |
LATITUDE: -17.533000 * LONGITUDE: 149.833000 |
long_lat |
ENVELOPE(149.833000,149.833000,-17.533000,-17.533000) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Johnson, Maggie Dorothy; Carpenter, Robert C (2018): Nitrogen enrichment offsets direct negative effects of ocean acidification on a reef-building crustose coralline alga. Biology Letters, 14(7), 20180371, https://doi.org/10.1098/rsbl.2018.0371 Johnson, Maggie Dorothy; Carpenter, Robert C (2018): Calcification, photophysiology and treatment parameters for laboratory experiment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.887917 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2020): seacarb: seawater carbonate chemistry with R. R package version 3.2.14. https://CRAN.R-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.924886 https://doi.org/10.1594/PANGAEA.924886 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.92488610.1098/rsbl.2018.037110.1594/PANGAEA.887917 |
_version_ |
1810469360394829824 |