Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate
Ocean acidification is considered a major threat to marine ecosystems and may particularly affect calcifying organisms such as corals, foraminifera and coccolithophores. Here we investigate the impact of elevated pCO2 and lowered pH on growth and calcification in the common calcareous dinoflagellate...
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ftoceanrep:oai:oceanrep.geomar.de:24315 2023-05-15T17:49:50+02:00 Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate Browman, Howard I. Van de Waal, Dedmer B. John, Uwe Ziveri, Patrizia Reichart, Gert-Jan Hoins, Mirja Sluijs, Appy Rost, Björn 2013 text https://oceanrep.geomar.de/id/eprint/24315/ https://oceanrep.geomar.de/id/eprint/24315/1/journal.pone.0065987.pdf https://doi.org/10.1371/journal.pone.0065987 en eng Public Library of Science https://oceanrep.geomar.de/id/eprint/24315/1/journal.pone.0065987.pdf Browman, H. I., Van de Waal, D. B., John, U., Ziveri, P., Reichart, G. J., Hoins, M., Sluijs, A. and Rost, B. (2013) Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate. Open Access PLoS ONE, 8 (6). e65987. DOI 10.1371/journal.pone.0065987 <https://doi.org/10.1371/journal.pone.0065987>. doi:10.1371/journal.pone.0065987 info:eu-repo/semantics/openAccess Article PeerReviewed 2013 ftoceanrep https://doi.org/10.1371/journal.pone.0065987 2023-04-07T15:13:02Z Ocean acidification is considered a major threat to marine ecosystems and may particularly affect calcifying organisms such as corals, foraminifera and coccolithophores. Here we investigate the impact of elevated pCO2 and lowered pH on growth and calcification in the common calcareous dinoflagellate Thoracosphaera heimii. We observe a substantial reduction in growth rate, calcification and cyst stability of T. heimii under elevated pCO2. Furthermore, transcriptomic analyses reveal CO2 sensitive regulation of many genes, particularly those being associated to inorganic carbon acquisition and calcification. Stable carbon isotope fractionation for organic carbon production increased with increasing pCO2 whereas it decreased for calcification, which suggests interdependence between both processes. We also found a strong effect of pCO2 on the stable oxygen isotopic composition of calcite, in line with earlier observations concerning another T. heimii strain. The observed changes in stable oxygen and carbon isotope composition of T. heimii cysts may provide an ideal tool for reconstructing past seawater carbonate chemistry, and ultimately past pCO2. Although the function of calcification in T. heimii remains unresolved, this trait likely plays an important role in the ecological and evolutionary success of this species. Acting on calcification as well as growth, ocean acidification may therefore impose a great threat for T. heimii. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) PLoS ONE 8 6 e65987 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
Ocean acidification is considered a major threat to marine ecosystems and may particularly affect calcifying organisms such as corals, foraminifera and coccolithophores. Here we investigate the impact of elevated pCO2 and lowered pH on growth and calcification in the common calcareous dinoflagellate Thoracosphaera heimii. We observe a substantial reduction in growth rate, calcification and cyst stability of T. heimii under elevated pCO2. Furthermore, transcriptomic analyses reveal CO2 sensitive regulation of many genes, particularly those being associated to inorganic carbon acquisition and calcification. Stable carbon isotope fractionation for organic carbon production increased with increasing pCO2 whereas it decreased for calcification, which suggests interdependence between both processes. We also found a strong effect of pCO2 on the stable oxygen isotopic composition of calcite, in line with earlier observations concerning another T. heimii strain. The observed changes in stable oxygen and carbon isotope composition of T. heimii cysts may provide an ideal tool for reconstructing past seawater carbonate chemistry, and ultimately past pCO2. Although the function of calcification in T. heimii remains unresolved, this trait likely plays an important role in the ecological and evolutionary success of this species. Acting on calcification as well as growth, ocean acidification may therefore impose a great threat for T. heimii. |
format |
Article in Journal/Newspaper |
author |
Browman, Howard I. Van de Waal, Dedmer B. John, Uwe Ziveri, Patrizia Reichart, Gert-Jan Hoins, Mirja Sluijs, Appy Rost, Björn |
spellingShingle |
Browman, Howard I. Van de Waal, Dedmer B. John, Uwe Ziveri, Patrizia Reichart, Gert-Jan Hoins, Mirja Sluijs, Appy Rost, Björn Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
author_facet |
Browman, Howard I. Van de Waal, Dedmer B. John, Uwe Ziveri, Patrizia Reichart, Gert-Jan Hoins, Mirja Sluijs, Appy Rost, Björn |
author_sort |
Browman, Howard I. |
title |
Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
title_short |
Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
title_full |
Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
title_fullStr |
Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
title_full_unstemmed |
Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate |
title_sort |
ocean acidification reduces growth and calcification in a marine dinoflagellate |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
https://oceanrep.geomar.de/id/eprint/24315/ https://oceanrep.geomar.de/id/eprint/24315/1/journal.pone.0065987.pdf https://doi.org/10.1371/journal.pone.0065987 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/24315/1/journal.pone.0065987.pdf Browman, H. I., Van de Waal, D. B., John, U., Ziveri, P., Reichart, G. J., Hoins, M., Sluijs, A. and Rost, B. (2013) Ocean Acidification Reduces Growth and Calcification in a Marine Dinoflagellate. Open Access PLoS ONE, 8 (6). e65987. DOI 10.1371/journal.pone.0065987 <https://doi.org/10.1371/journal.pone.0065987>. doi:10.1371/journal.pone.0065987 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0065987 |
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PLoS ONE |
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8 |
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6 |
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e65987 |
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1766156315044872192 |