Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited
The re-examination of the lightly calcified Arctic coccolithophore species, Papposphaera sagittifera, has some inherent challenges due to the research history on this taxon. It is thus obvious in retrospect that the species description based on just a single specimen does not adequately account for...
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ftdtupubl:oai:pure.atira.dk:publications/d4eb61fc-5f48-4c8c-8425-d8a91d23c307 2024-03-31T07:49:02+00:00 Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited Thomsen, Helge Abildhauge Østergaard, Jette B. Heldal, Mikal 2016 application/pdf https://orbit.dtu.dk/en/publications/d4eb61fc-5f48-4c8c-8425-d8a91d23c307 https://doi.org/10.4467/16890027AP.16.005.4046 https://backend.orbit.dtu.dk/ws/files/139510814/AP_55_1_33_50.pdf eng eng https://orbit.dtu.dk/en/publications/d4eb61fc-5f48-4c8c-8425-d8a91d23c307 info:eu-repo/semantics/openAccess Thomsen , H A , Østergaard , J B & Heldal , M 2016 , ' Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited ' , Acta Protozoologica , vol. 55 , no. 1 , pp. 33-50 . https://doi.org/10.4467/16890027AP.16.005.4046 Agricultural and Biological Sciences (all) Coccolithophore Electron microscopy P. sagittifera Papposphaera Polar regions T. borealis Turrisphaera MICROBIOLOGY ARCTIC COCCOLITHOPHORIDS WEST GREENLAND PRYMNESIOPHYCEAE NOV article 2016 ftdtupubl https://doi.org/10.4467/16890027AP.16.005.4046 2024-03-06T01:01:16Z The re-examination of the lightly calcified Arctic coccolithophore species, Papposphaera sagittifera, has some inherent challenges due to the research history on this taxon. It is thus obvious in retrospect that the species description based on just a single specimen does not adequately account for the true identity of this taxon. Today we are aware of the existence of at least three species of Papposphaera that have basically the same calyx design while being differentiated based on patterns of central area calcification. In order to remedy this we emend here the description of P. sagittifera and provide an epitype for the species. When realizing that species pairs of Papposphaera and Turrisphaera share a life history, the new combination, P. borealis, was established to accommodate P. sagittifera and T. borealis. However, it turns out that 'sagittifera' is in fact the senior epithet by a few months, which means that the correct name for the species is P. sagittifera with T. borealis added as a synonym. While the P. sagittifera HET and HOL morphological variability across Arctic sites clearly leaves the impression of a single, fairly well defined species, the situation is different with respect to the occurrence of P. sagittifera in Antarctic waters. While there are obvious similarities between P. sagittifera HET across the Polar Regions there are also subtle differences, and most importantly it has been found that the Antarctic P. sagittifera shares a life history with a species of Turrisphaera that is markedly different from T. borealis. While awaiting molecular evidence the Antarctic material is tentatively referred to as P. sagittifera cfr. Article in Journal/Newspaper Antarc* Antarctic Arctic Greenland Technical University of Denmark: DTU Orbit Antarctic Arctic Greenland The Antarctic |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Agricultural and Biological Sciences (all) Coccolithophore Electron microscopy P. sagittifera Papposphaera Polar regions T. borealis Turrisphaera MICROBIOLOGY ARCTIC COCCOLITHOPHORIDS WEST GREENLAND PRYMNESIOPHYCEAE NOV |
spellingShingle |
Agricultural and Biological Sciences (all) Coccolithophore Electron microscopy P. sagittifera Papposphaera Polar regions T. borealis Turrisphaera MICROBIOLOGY ARCTIC COCCOLITHOPHORIDS WEST GREENLAND PRYMNESIOPHYCEAE NOV Thomsen, Helge Abildhauge Østergaard, Jette B. Heldal, Mikal Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
topic_facet |
Agricultural and Biological Sciences (all) Coccolithophore Electron microscopy P. sagittifera Papposphaera Polar regions T. borealis Turrisphaera MICROBIOLOGY ARCTIC COCCOLITHOPHORIDS WEST GREENLAND PRYMNESIOPHYCEAE NOV |
description |
The re-examination of the lightly calcified Arctic coccolithophore species, Papposphaera sagittifera, has some inherent challenges due to the research history on this taxon. It is thus obvious in retrospect that the species description based on just a single specimen does not adequately account for the true identity of this taxon. Today we are aware of the existence of at least three species of Papposphaera that have basically the same calyx design while being differentiated based on patterns of central area calcification. In order to remedy this we emend here the description of P. sagittifera and provide an epitype for the species. When realizing that species pairs of Papposphaera and Turrisphaera share a life history, the new combination, P. borealis, was established to accommodate P. sagittifera and T. borealis. However, it turns out that 'sagittifera' is in fact the senior epithet by a few months, which means that the correct name for the species is P. sagittifera with T. borealis added as a synonym. While the P. sagittifera HET and HOL morphological variability across Arctic sites clearly leaves the impression of a single, fairly well defined species, the situation is different with respect to the occurrence of P. sagittifera in Antarctic waters. While there are obvious similarities between P. sagittifera HET across the Polar Regions there are also subtle differences, and most importantly it has been found that the Antarctic P. sagittifera shares a life history with a species of Turrisphaera that is markedly different from T. borealis. While awaiting molecular evidence the Antarctic material is tentatively referred to as P. sagittifera cfr. |
format |
Article in Journal/Newspaper |
author |
Thomsen, Helge Abildhauge Østergaard, Jette B. Heldal, Mikal |
author_facet |
Thomsen, Helge Abildhauge Østergaard, Jette B. Heldal, Mikal |
author_sort |
Thomsen, Helge Abildhauge |
title |
Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
title_short |
Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
title_full |
Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
title_fullStr |
Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
title_full_unstemmed |
Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited |
title_sort |
coccolithophores in polar waters: papposphaera sagittifera het and hol revisited |
publishDate |
2016 |
url |
https://orbit.dtu.dk/en/publications/d4eb61fc-5f48-4c8c-8425-d8a91d23c307 https://doi.org/10.4467/16890027AP.16.005.4046 https://backend.orbit.dtu.dk/ws/files/139510814/AP_55_1_33_50.pdf |
geographic |
Antarctic Arctic Greenland The Antarctic |
geographic_facet |
Antarctic Arctic Greenland The Antarctic |
genre |
Antarc* Antarctic Arctic Greenland |
genre_facet |
Antarc* Antarctic Arctic Greenland |
op_source |
Thomsen , H A , Østergaard , J B & Heldal , M 2016 , ' Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited ' , Acta Protozoologica , vol. 55 , no. 1 , pp. 33-50 . https://doi.org/10.4467/16890027AP.16.005.4046 |
op_relation |
https://orbit.dtu.dk/en/publications/d4eb61fc-5f48-4c8c-8425-d8a91d23c307 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.4467/16890027AP.16.005.4046 |
_version_ |
1795037624278188032 |