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Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited

Publication date: 17.02.2015

Acta Protozoologica, 2015, Volume 54, Issue 2, pp. 85 - 96

https://doi.org/10.4467/16890027AP.15.007.2732

Authors

,
Helge Abildhauge Thomsen
National Institute of Aquatic Resources, Technical University of Denmark, Charlottenlund, Denmark
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Jette Buch Østergaard
Nørrebrogade 52a 5th, 2200 Copenhagen N, Denmark
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Titles

Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited

Abstract

A group of weakly calcified coccolithophorid genera and species were described from polar regions several decades ago. In the interim period a few additional findings have been reported adding to the morphological and biogeographical databases of some of the species. The holococcolithophorid genus Trigonaspis is revisited here with the purpose of providing, based on additional sampling from both polar regions, an update on species morphology, life history aspects and biogeography. The genus Trigonaspis as currently circumscribed comprises four taxa – two from each polar region. The triangular plates of crystallites that cover the surfaces of both the tower-shaped flagellar pole coccoliths and the disc-shaped body coccoliths are the keystone features of the genus. Circumstantial evidence exists linking species of Trigonaspis with species of Pappomonas in haploid-diploid life cycles.

References

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Information

Information: Acta Protozoologica, 2015, Volume 54, Issue 2, pp. 85 - 96

Article type: Original article

Authors

National Institute of Aquatic Resources, Technical University of Denmark, Charlottenlund, Denmark

Nørrebrogade 52a 5th, 2200 Copenhagen N, Denmark

Published at: 17.02.2015

Article status: Open

Licence: None

Percentage share of authors:

Helge Abildhauge Thomsen (Author) - 50%
Jette Buch Østergaard (Author) - 50%

Article corrections:

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Publication languages:

English