Pelagic and ice-associated microalgae under elevated light and pCO2: Contrasting physiological strategies in two Arctic diatoms ...

Laboratory experiment on acclimated physiological responses of the Arctic diatoms Thalassiosira hyalina and Melosira arctica towards elevated irradiance (50 vs 300 µmol photons m-2 s-1) and CO2 partial pressures (380 vs. 1000 μatm). Next to growth, elemental composition and biomass production, we as...

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Bibliographic Details
Main Authors: Wolf, Klara K E, Rokitta, Sebastian D, Hoppe, Clara Jule Marie, Rost, Björn
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
Climate change
gas-flux measurements
Ice-algae
light intensity
Melosira arctica
Ocean acidification
photophysiology
Thalassiosira hyalina
Arctic
Fram Strait
ice algae
Svalbard
Online Access:https://dx.doi.org/10.1594/pangaea.947543
https://doi.pangaea.de/10.1594/PANGAEA.947543
Description
Summary:Laboratory experiment on acclimated physiological responses of the Arctic diatoms Thalassiosira hyalina and Melosira arctica towards elevated irradiance (50 vs 300 µmol photons m-2 s-1) and CO2 partial pressures (380 vs. 1000 μatm). Next to growth, elemental composition and biomass production, we assessed detailed photophysiological responses through fluorometry and gas-flux measurements, including respiration and carbon acquisition. Both algal cultures were isolated from the field within 2 years before the experiment, T.hyalina in Kongsjorden, Svalbard, and M.arctica in the Fram Strait close to Svalbard. ...

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