Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi
The coccolithophore Emiliania huxleyi is a marine phytoplankton species capable of forming small calcium carbonate scales (coccoliths) which cover the organic part of the cell. Calcification rates of E. huxleyi are known to be sensitive to changes in seawater carbonate chemistry. It has, however, no...
Main Author: | |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2014
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.829081 https://doi.org/10.1594/PANGAEA.829081 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829081 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.829081 2024-09-15T18:28:22+00:00 Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi Bach, Lennart Thomas 2014 text/tab-separated-values, 1977 data points https://doi.pangaea.de/10.1594/PANGAEA.829081 https://doi.org/10.1594/PANGAEA.829081 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.829081 https://doi.org/10.1594/PANGAEA.829081 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Bach, Lennart Thomas; Bauke, Christine; Meier, K J Sebastian; Riebesell, Ulf; Schulz, Kai Georg (2012): Influence of changing carbonate chemistry on morphology and weight of coccoliths formed by Emiliania huxleyi. Biogeosciences, 9(8), 3449-3463, https://doi.org/10.5194/bg-9-3449-2012 - Alkalinity total Aragonite saturation state Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Calcite saturation state Carbon inorganic dissolved particulate production per cell Carbonate ion Carbon dioxide partial pressure Cell size Coccoliths malformed and incomplete standard deviation Height/width ratio Length Mass Measured pH Production Surface area Treatment Width dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.82908110.5194/bg-9-3449-2012 2024-07-24T02:31:32Z The coccolithophore Emiliania huxleyi is a marine phytoplankton species capable of forming small calcium carbonate scales (coccoliths) which cover the organic part of the cell. Calcification rates of E. huxleyi are known to be sensitive to changes in seawater carbonate chemistry. It has, however, not yet been clearly determined how these changes are reflected in size and weight of individual coccoliths and which specific parameter(s) of the carbonate system drive morphological modifications. Here, we compare data on coccolith size, weight, and malformation from a set of five experiments with a large diversity of carbonate chemistry conditions. This diversity allows distinguishing the influence of individual carbonate chemistry parameters such as carbon dioxide (CO2), bicarbonate (HCO3- ), carbonate ion (CO32-), and protons (H+) on the measured parameters. Measurements of fine-scale morphological structures reveal an increase of coccolith malformation with decreasing pH suggesting that H+ is the major factor causing malformations. Coccolith distal shield area varies from about 5 to 11 µm2. Changes in size seem to be mainly induced by varying [HCO3- ] and [H+] although influence of [CO32-] cannot be entirely ruled out. Changes in coccolith weight were proportional to changes in size. Increasing CaCO3 production rates are reflected in an increase in coccolith weight and an increase of the number of coccoliths formed per unit time. The combined investigation of morphological features and coccolith production rates presented in this study may help to interpret data derived from sediment cores, where coccolith morphology is used to reconstruct calcification rates in the water column. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
- Alkalinity total Aragonite saturation state Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Calcite saturation state Carbon inorganic dissolved particulate production per cell Carbonate ion Carbon dioxide partial pressure Cell size Coccoliths malformed and incomplete standard deviation Height/width ratio Length Mass Measured pH Production Surface area Treatment Width |
spellingShingle |
- Alkalinity total Aragonite saturation state Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Calcite saturation state Carbon inorganic dissolved particulate production per cell Carbonate ion Carbon dioxide partial pressure Cell size Coccoliths malformed and incomplete standard deviation Height/width ratio Length Mass Measured pH Production Surface area Treatment Width Bach, Lennart Thomas Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
topic_facet |
- Alkalinity total Aragonite saturation state Bicarbonate ion BIOACID Biological Impacts of Ocean Acidification Calcite saturation state Carbon inorganic dissolved particulate production per cell Carbonate ion Carbon dioxide partial pressure Cell size Coccoliths malformed and incomplete standard deviation Height/width ratio Length Mass Measured pH Production Surface area Treatment Width |
description |
The coccolithophore Emiliania huxleyi is a marine phytoplankton species capable of forming small calcium carbonate scales (coccoliths) which cover the organic part of the cell. Calcification rates of E. huxleyi are known to be sensitive to changes in seawater carbonate chemistry. It has, however, not yet been clearly determined how these changes are reflected in size and weight of individual coccoliths and which specific parameter(s) of the carbonate system drive morphological modifications. Here, we compare data on coccolith size, weight, and malformation from a set of five experiments with a large diversity of carbonate chemistry conditions. This diversity allows distinguishing the influence of individual carbonate chemistry parameters such as carbon dioxide (CO2), bicarbonate (HCO3- ), carbonate ion (CO32-), and protons (H+) on the measured parameters. Measurements of fine-scale morphological structures reveal an increase of coccolith malformation with decreasing pH suggesting that H+ is the major factor causing malformations. Coccolith distal shield area varies from about 5 to 11 µm2. Changes in size seem to be mainly induced by varying [HCO3- ] and [H+] although influence of [CO32-] cannot be entirely ruled out. Changes in coccolith weight were proportional to changes in size. Increasing CaCO3 production rates are reflected in an increase in coccolith weight and an increase of the number of coccoliths formed per unit time. The combined investigation of morphological features and coccolith production rates presented in this study may help to interpret data derived from sediment cores, where coccolith morphology is used to reconstruct calcification rates in the water column. |
format |
Dataset |
author |
Bach, Lennart Thomas |
author_facet |
Bach, Lennart Thomas |
author_sort |
Bach, Lennart Thomas |
title |
Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
title_short |
Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
title_full |
Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
title_fullStr |
Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
title_full_unstemmed |
Experiment: changing carbonate chemistry influence on coccoliths formed by Emiliania huxleyi |
title_sort |
experiment: changing carbonate chemistry influence on coccoliths formed by emiliania huxleyi |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.829081 https://doi.org/10.1594/PANGAEA.829081 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Bach, Lennart Thomas; Bauke, Christine; Meier, K J Sebastian; Riebesell, Ulf; Schulz, Kai Georg (2012): Influence of changing carbonate chemistry on morphology and weight of coccoliths formed by Emiliania huxleyi. Biogeosciences, 9(8), 3449-3463, https://doi.org/10.5194/bg-9-3449-2012 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.829081 https://doi.org/10.1594/PANGAEA.829081 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.82908110.5194/bg-9-3449-2012 |
_version_ |
1810469734180716544 |