Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera
By F. Lombard, R. E. D. Rocha, J. Bijma, Jean-Pierre Gattuso. 2010
110 citations recorded by the source corpus.
Abstract. The effect of carbonate ion concentration ([CO32−]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer. Experiments on G. sacculifer were conducted under two irradiance levels (35 and 335 μmol photons m−2 s−1). Calcification was ca. 30% lower under low light than under high light, irrespective of the [CO32−]. Both O. universa and G. sacculifer exhibited reduced final shell weight and calcification rate under low [CO32−]. For the [CO32−] expected at the end of the century, the calcification rates of these two species are projected to be 6 to 13% lower than the present conditions, while the final shell weights are reduced by 20 to 27% for O. universa and by 4 to 6% for G. sacculifer. These results indicate that ocean acidification would impact on calcite production by foraminifera and may decrease the calcite flux contribution from these organisms.
Subfields: Atmospheric Science, Oceanography
View Paper: https://www.semanticscholar.org/paper/8c76cd9079dff4c41fd8916628bbb806ea6f8aef
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Citations in the corpus
- Modelling planktic foraminifer growth and distribution using an ecophysiological multi-species approach (2011, background): “Finally, if the calcification (Lombard et al., 2010) and dissolution processes that takes place during sedimentation (Schiebel et al., 2007) could be integrated in our model, the latter associated with global-scale models may provide first-order estimates of foraminifer impact on calcite fluxes in…”
- The effects of changing climate on microzooplankton grazing and community structure: drivers, predictions and knowledge gaps (2013, background): “…effects of increased CO2 and lower pH on calcification among planktonic foraminifera are rare, yet there are predictions that these changing environmental conditions will significantly affect calcification in these species within the next century (Russell et al., 2004; Lombard et al., 2010, 2011).”