Seawater carbonate chemistry, growth rate and morphology of Calcidiscus leptoporus (RCC1135) during experiments, 2011

The coccolithophore Calcidiscus leptoporus (strain RCC1135) was grown in dilute batch culture at CO2 levels ranging from ~200 to ~1600 µatm. Increasing CO2 concentration led to an increased percentage of malformed coccoliths and eventually (at ~1500 µatm CO2) to aggregation of cells. Carbonate chemi...

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Bibliographic Details
Main Authors: Langer, Gerald, Bode, Maya
Format: Dataset
Language:English
Published: PANGAEA 2011
Subjects:
Alkalinity
Gran titration (Gran
1950)
total
Aragonite saturation state
Bicarbonate ion
BIOACID
Biological Impacts of Ocean Acidification
Bottles or small containers/Aquaria (<20 L)
Calcidiscus leptoporus
morphology
standard deviation
Calcification/Dissolution
Calcite saturation state
Calculated
see reference(s)
Calculated using CO2SYS
Calculated using seacarb after Nisumaa et al. (2010)
Carbon
inorganic
dissolved
particulate
per cell
production per cell
organic
Carbonate ion
Carbonate system computation flag
Carbon dioxide
Chromista
Conductivity meter (WTW
Weilheim
Gemany)
EPOCA
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.763286
https://doi.org/10.1594/PANGAEA.763286
Description
Summary:The coccolithophore Calcidiscus leptoporus (strain RCC1135) was grown in dilute batch culture at CO2 levels ranging from ~200 to ~1600 µatm. Increasing CO2 concentration led to an increased percentage of malformed coccoliths and eventually (at ~1500 µatm CO2) to aggregation of cells. Carbonate chemistry of natural seawater was manipulated in three ways: first, addition of acid; second, addition of a HCO3/CO3 solution; and third, addition of both acid and HCO3/CO3 solution. The data set allowed the disentangling of putative effects of the different parameters of the carbonate system. It is concluded that CO2 is the parameter of the carbonate system which causes both aberrant coccolithogenesis and aggregation of cells.

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