Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea
Water column pH and carbonate mineral saturation states were calculated from dissolved inorganic carbon (DIC) and total alkalinity data collected over the eastern Bering Sea shelf in the spring and summer of 2008. The saturation states (?) of the two most important carbonate minerals, calcite (?calc...
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ftsouthampton:oai:eprints.soton.ac.uk:357355 2023-07-30T04:02:40+02:00 Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea Mathis, Jeremy T. Cross, Jessica N. Bates, Nicholas R. 2011 https://eprints.soton.ac.uk/357355/ English eng Mathis, Jeremy T., Cross, Jessica N. and Bates, Nicholas R. (2011) Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea. Journal of Geophysical Research: Oceans, 116 (C2), C02030. (doi:10.1029/2010JC006453 <http://dx.doi.org/10.1029/2010JC006453>). Article PeerReviewed 2011 ftsouthampton https://doi.org/10.1029/2010JC006453 2023-07-09T21:49:12Z Water column pH and carbonate mineral saturation states were calculated from dissolved inorganic carbon (DIC) and total alkalinity data collected over the eastern Bering Sea shelf in the spring and summer of 2008. The saturation states (?) of the two most important carbonate minerals, calcite (?calcite) and aragonite (?aragonite) were strongly coupled to terrestrial runoff from the Yukon and Kuskokwim rivers, primary production in the surface waters, and remineralization of organic matter at depth over the shelf. In spring, before ice melt occurred, pH over the shelf was largely confined to a range of 7.9–8.1 and ?calcite and ?aragonite ranged from 1.5 to 3.0 and 0.8 to 2.0, respectively. At the stations closest to river outflows, aragonite was undersaturated in the water column from the surface to the bottom. During the summer sea ice retreat, high rates of primary production consumed DIC in the mixed layer, which increased pH and ?calcite and ?aragonite. However, ?calcite and ?aragonite decreased by ?0.3 in the bottom waters over the middle and outer shelf. Over the northern shelf, where export production is highest, ?aragonite decreased by ?0.35 and became highly undersaturated. The observed suppression and undersaturation of ?calcite and ?aragonite in the eastern Bering Sea are correlated with anthropogenic carbon dioxide uptake into the ocean and will likely be exacerbated under business-as-usual emission scenarios. Therefore, ocean acidification could threaten some benthic and pelagic calcifying organisms across the Bering Sea shelf in the coming decades. Article in Journal/Newspaper Bering Sea Kuskokwim Ocean acidification Sea ice Yukon University of Southampton: e-Prints Soton Bering Sea Yukon Journal of Geophysical Research 116 C2 |
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Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Water column pH and carbonate mineral saturation states were calculated from dissolved inorganic carbon (DIC) and total alkalinity data collected over the eastern Bering Sea shelf in the spring and summer of 2008. The saturation states (?) of the two most important carbonate minerals, calcite (?calcite) and aragonite (?aragonite) were strongly coupled to terrestrial runoff from the Yukon and Kuskokwim rivers, primary production in the surface waters, and remineralization of organic matter at depth over the shelf. In spring, before ice melt occurred, pH over the shelf was largely confined to a range of 7.9–8.1 and ?calcite and ?aragonite ranged from 1.5 to 3.0 and 0.8 to 2.0, respectively. At the stations closest to river outflows, aragonite was undersaturated in the water column from the surface to the bottom. During the summer sea ice retreat, high rates of primary production consumed DIC in the mixed layer, which increased pH and ?calcite and ?aragonite. However, ?calcite and ?aragonite decreased by ?0.3 in the bottom waters over the middle and outer shelf. Over the northern shelf, where export production is highest, ?aragonite decreased by ?0.35 and became highly undersaturated. The observed suppression and undersaturation of ?calcite and ?aragonite in the eastern Bering Sea are correlated with anthropogenic carbon dioxide uptake into the ocean and will likely be exacerbated under business-as-usual emission scenarios. Therefore, ocean acidification could threaten some benthic and pelagic calcifying organisms across the Bering Sea shelf in the coming decades. |
format |
Article in Journal/Newspaper |
author |
Mathis, Jeremy T. Cross, Jessica N. Bates, Nicholas R. |
spellingShingle |
Mathis, Jeremy T. Cross, Jessica N. Bates, Nicholas R. Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
author_facet |
Mathis, Jeremy T. Cross, Jessica N. Bates, Nicholas R. |
author_sort |
Mathis, Jeremy T. |
title |
Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
title_short |
Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
title_full |
Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
title_fullStr |
Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
title_full_unstemmed |
Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea |
title_sort |
coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern bering sea |
publishDate |
2011 |
url |
https://eprints.soton.ac.uk/357355/ |
geographic |
Bering Sea Yukon |
geographic_facet |
Bering Sea Yukon |
genre |
Bering Sea Kuskokwim Ocean acidification Sea ice Yukon |
genre_facet |
Bering Sea Kuskokwim Ocean acidification Sea ice Yukon |
op_relation |
Mathis, Jeremy T., Cross, Jessica N. and Bates, Nicholas R. (2011) Coupling primary production and terrestrial runoff to ocean acidification and carbonate mineral suppression in the eastern Bering Sea. Journal of Geophysical Research: Oceans, 116 (C2), C02030. (doi:10.1029/2010JC006453 <http://dx.doi.org/10.1029/2010JC006453>). |
op_doi |
https://doi.org/10.1029/2010JC006453 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
C2 |
_version_ |
1772813484003688448 |