Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification
Coccolithophores—single-celled calcifying phytoplankton—are an important group of marine primary producers and the dominant builders of calcium carbonate globally. Coccolithophores form extensive blooms and increase the density and sinking speed of organic matter via calcium carbonate ballasting. Th...
Published in: | Nature Geoscience |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Research
2017
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/35356/ https://oceanrep.geomar.de/id/eprint/35356/1/ngeo2854.pdf https://oceanrep.geomar.de/id/eprint/35356/2/ngeo2854-s1.pdf https://doi.org/10.1038/ngeo2854 |
id |
ftoceanrep:oai:oceanrep.geomar.de:35356 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:35356 2023-05-15T17:49:37+02:00 Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification Riebesell, Ulf Bach, Lennart T. Bellerby, Richard G. J. Bermudez Monsalve, Jorge Rafael Boxhammer, Tim Czerny, Jan Larsen, Aud Ludwig, Andrea Schulz, Kai G. 2017-01 text https://oceanrep.geomar.de/id/eprint/35356/ https://oceanrep.geomar.de/id/eprint/35356/1/ngeo2854.pdf https://oceanrep.geomar.de/id/eprint/35356/2/ngeo2854-s1.pdf https://doi.org/10.1038/ngeo2854 en eng Nature Research https://oceanrep.geomar.de/id/eprint/35356/1/ngeo2854.pdf https://oceanrep.geomar.de/id/eprint/35356/2/ngeo2854-s1.pdf Riebesell, U. , Bach, L. T. , Bellerby, R. G. J., Bermudez Monsalve, J. R., Boxhammer, T. , Czerny, J., Larsen, A., Ludwig, A. and Schulz, K. G. (2017) Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification. Nature Geoscience, 10 . pp. 19-23. DOI 10.1038/ngeo2854 <https://doi.org/10.1038/ngeo2854>. doi:10.1038/ngeo2854 info:eu-repo/semantics/restrictedAccess Article PeerReviewed info:eu-repo/semantics/article 2017 ftoceanrep https://doi.org/10.1038/ngeo2854 2023-04-07T15:30:00Z Coccolithophores—single-celled calcifying phytoplankton—are an important group of marine primary producers and the dominant builders of calcium carbonate globally. Coccolithophores form extensive blooms and increase the density and sinking speed of organic matter via calcium carbonate ballasting. Thereby, they play a key role in the marine carbon cycle. Coccolithophore physiological responses to experimental ocean acidification have ranged from moderate stimulation to substantial decline in growth and calcification rates, combined with enhanced malformation of their calcite platelets. Here we report on a mesocosm experiment conducted in a Norwegian fjord in which we exposed a natural plankton community to a wide range of CO2-induced ocean acidification, to test whether these physiological responses affect the ecological success of coccolithophore populations. Under high-CO2 treatments, Emiliania huxleyi, the most abundant and productive coccolithophore species, declined in population size during the pre-bloom period and lost the ability to form blooms. As a result, particle sinking velocities declined by up to 30% and sedimented organic matter was reduced by up to 25% relative to controls. There were also strong reductions in seawater concentrations of the climate-active compound dimethylsulfide in CO2-enriched mesocosms. We conclude that ocean acidification can lower calcifying phytoplankton productivity, potentially creating a positive feedback to the climate system. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Nature Geoscience 10 1 19 23 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Coccolithophores—single-celled calcifying phytoplankton—are an important group of marine primary producers and the dominant builders of calcium carbonate globally. Coccolithophores form extensive blooms and increase the density and sinking speed of organic matter via calcium carbonate ballasting. Thereby, they play a key role in the marine carbon cycle. Coccolithophore physiological responses to experimental ocean acidification have ranged from moderate stimulation to substantial decline in growth and calcification rates, combined with enhanced malformation of their calcite platelets. Here we report on a mesocosm experiment conducted in a Norwegian fjord in which we exposed a natural plankton community to a wide range of CO2-induced ocean acidification, to test whether these physiological responses affect the ecological success of coccolithophore populations. Under high-CO2 treatments, Emiliania huxleyi, the most abundant and productive coccolithophore species, declined in population size during the pre-bloom period and lost the ability to form blooms. As a result, particle sinking velocities declined by up to 30% and sedimented organic matter was reduced by up to 25% relative to controls. There were also strong reductions in seawater concentrations of the climate-active compound dimethylsulfide in CO2-enriched mesocosms. We conclude that ocean acidification can lower calcifying phytoplankton productivity, potentially creating a positive feedback to the climate system. |
format |
Article in Journal/Newspaper |
author |
Riebesell, Ulf Bach, Lennart T. Bellerby, Richard G. J. Bermudez Monsalve, Jorge Rafael Boxhammer, Tim Czerny, Jan Larsen, Aud Ludwig, Andrea Schulz, Kai G. |
spellingShingle |
Riebesell, Ulf Bach, Lennart T. Bellerby, Richard G. J. Bermudez Monsalve, Jorge Rafael Boxhammer, Tim Czerny, Jan Larsen, Aud Ludwig, Andrea Schulz, Kai G. Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
author_facet |
Riebesell, Ulf Bach, Lennart T. Bellerby, Richard G. J. Bermudez Monsalve, Jorge Rafael Boxhammer, Tim Czerny, Jan Larsen, Aud Ludwig, Andrea Schulz, Kai G. |
author_sort |
Riebesell, Ulf |
title |
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
title_short |
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
title_full |
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
title_fullStr |
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
title_full_unstemmed |
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
title_sort |
competitive fitness of a predominant pelagic calcifier impaired by ocean acidification |
publisher |
Nature Research |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/35356/ https://oceanrep.geomar.de/id/eprint/35356/1/ngeo2854.pdf https://oceanrep.geomar.de/id/eprint/35356/2/ngeo2854-s1.pdf https://doi.org/10.1038/ngeo2854 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/35356/1/ngeo2854.pdf https://oceanrep.geomar.de/id/eprint/35356/2/ngeo2854-s1.pdf Riebesell, U. , Bach, L. T. , Bellerby, R. G. J., Bermudez Monsalve, J. R., Boxhammer, T. , Czerny, J., Larsen, A., Ludwig, A. and Schulz, K. G. (2017) Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification. Nature Geoscience, 10 . pp. 19-23. DOI 10.1038/ngeo2854 <https://doi.org/10.1038/ngeo2854>. doi:10.1038/ngeo2854 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/ngeo2854 |
container_title |
Nature Geoscience |
container_volume |
10 |
container_issue |
1 |
container_start_page |
19 |
op_container_end_page |
23 |
_version_ |
1766156004394795008 |