Coccolithophorids in Polar Waters: Calciarcus spp. Revisited

• Authors: Helge A. Thomsen , Jette B. Østergaard
• Languages of publication: PL

Abstracts

PL

The genus Calciarcus is revisited here with the purpose of providing, based on additional sampling from both polar regions, an update on species diversity and morphology that can serve as a reference for future work. The geographic realm of the genus is significantly widened and a case is built based on consistency in appearance in favour of adding Calciarcus spp. to the well-defined community of bipolar weakly calcified coccolithophorid genera. Despite the multitude of specimens available for analysis and the fact that the specimens examined distribute themselves within three clusters based on morphological features of coccolith superstructures, it has not been possible at this stage to define a robust framework for differentiation among species of Calciarcus. Circumstantial evidence exist linking species of Wigwamma with species of Calciarcus in haploid-diploid life cycles.

Keywords

PL

Coccolithophorid, holococcolith, Calciarcus, polar regions, electron microscopy

• Publisher: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
• Journal: Acta Protozoologica
• Year: 2014
• Volume: 53
• Issue: 2

Dates

published

2014

online

11 - 09 - 2015

Contributors

author

Helge A. Thomsen

author

Jette B. Østergaard