Ocean acidification compromises a planktic calcifier with implications for global carbon cycling

Abstract Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the f...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Catherine V. Davis, Emily B. Rivest, Tessa M. Hill, Brian Gaylord, Ann D. Russell, Eric Sanford
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d3e4ab3bd82f415c962cb63681c246a1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d3e4ab3bd82f415c962cb63681c246a1
record_format	dspace
spelling	oai:doaj.org-article:d3e4ab3bd82f415c962cb63681c246a12021-12-02T12:32:53ZOcean acidification compromises a planktic calcifier with implications for global carbon cycling10.1038/s41598-017-01530-92045-2322https://doaj.org/article/d3e4ab3bd82f415c962cb63681c246a12017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01530-9https://doaj.org/toc/2045-2322Abstract Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the foraminifer, Globigerina bulloides) under an ecologically relevant range of seawater pH (7.5 to 8.3 total scale). Multiple metrics of calcification and physiological performance varied with pH. At pH > 8.0, increased calcification occurred without a concomitant rise in respiration rates. However, as pH declined from 8.0 to 7.5, calcification and oxygen consumption both decreased, suggesting a reduced ability to precipitate shell material accompanied by metabolic depression. Repair of spines, important for both buoyancy and feeding, was also reduced at pH < 7.7. The dependence of calcification, respiration, and spine repair on seawater pH suggests that foraminifera will likely be challenged by future ocean conditions. Furthermore, the nature of these effects has the potential to actuate changes in vertical transport of organic and inorganic carbon, perturbing feedbacks to regional and global marine carbon cycling. The biological impacts of seawater pH have additional, important implications for the use of foraminifera as paleoceanographic indicators.Catherine V. DavisEmily B. RivestTessa M. HillBrian GaylordAnn D. RussellEric SanfordNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Catherine V. Davis Emily B. Rivest Tessa M. Hill Brian Gaylord Ann D. Russell Eric Sanford Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
description	Abstract Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which play a key role in ecosystem functioning and marine carbon cycling. We cultured a globally important calcifying marine plankter (the foraminifer, Globigerina bulloides) under an ecologically relevant range of seawater pH (7.5 to 8.3 total scale). Multiple metrics of calcification and physiological performance varied with pH. At pH > 8.0, increased calcification occurred without a concomitant rise in respiration rates. However, as pH declined from 8.0 to 7.5, calcification and oxygen consumption both decreased, suggesting a reduced ability to precipitate shell material accompanied by metabolic depression. Repair of spines, important for both buoyancy and feeding, was also reduced at pH < 7.7. The dependence of calcification, respiration, and spine repair on seawater pH suggests that foraminifera will likely be challenged by future ocean conditions. Furthermore, the nature of these effects has the potential to actuate changes in vertical transport of organic and inorganic carbon, perturbing feedbacks to regional and global marine carbon cycling. The biological impacts of seawater pH have additional, important implications for the use of foraminifera as paleoceanographic indicators.
format	article
author	Catherine V. Davis Emily B. Rivest Tessa M. Hill Brian Gaylord Ann D. Russell Eric Sanford
author_facet	Catherine V. Davis Emily B. Rivest Tessa M. Hill Brian Gaylord Ann D. Russell Eric Sanford
author_sort	Catherine V. Davis
title	Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_short	Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_full	Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_fullStr	Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_full_unstemmed	Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
title_sort	ocean acidification compromises a planktic calcifier with implications for global carbon cycling
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d3e4ab3bd82f415c962cb63681c246a1
work_keys_str_mv	AT catherinevdavis oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling AT emilybrivest oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling AT tessamhill oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling AT briangaylord oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling AT anndrussell oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling AT ericsanford oceanacidificationcompromisesaplankticcalcifierwithimplicationsforglobalcarboncycling
_version_	1718393948245852160

Ocean acidification compromises a planktic calcifier with implications for global carbon cycling

Ejemplares similares