Papposphaera iugifera nov. sp. from West Greenland,Svalbard, and the Baltic Sea |
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| Affiliation: | 1. National Institute of Aquatic Resources (DTU Aqua), Technical University of Denmark, Jægersborg Allé 1, 2920 Charlottenlund, Denmark;2. Nørrebrogade 52a, 5th, 2200 Copenhagen N, Denmark;1. Department of Hydrobiology, Faculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, 61-614 Poznań, Poland;2. Polish-German Research Institute, Collegium Polonicum, Adam Mickiewicz University in Poznań-Europa Universität Viadrina Frankfurt (Oder), Kościuszki 1, 69-100 Słubice, Poland;3. Institute of Geology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University in Poznań, Maków Polnych 16, 61-606 Poznań, Poland;1. A.V. Zhirmunsky Institute of Marine Biology Far Eastern Branch, Russian Academy of Sciences, 17 Palchevsky St, 690059 Vladivostok, Russia;2. Far Eastern Federal University, 29 Oktiabrskaya St, 690600 Vladivostok, Russia;3. Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan;1. Department of Invertebrate Zoology, Faculty of Biology, St. Petersburg State University, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia;2. Laboratory of Parasitic Worms and Protistology, Zoological Institute RAS, Universitetskaya nab. 1, 199034 St. Petersburg, Russia;1. Department of Terrestrial Ecology, Zoological Institute, Cologne Biocenter, Zülpicher Str. 47b, University of Cologne, 50674 Cologne Germany;2. Department of Invertebrate Zoology, Faculty of Biology and Soil Sciences, St. Petersburg State University, Universitetskaja nab. 7/9 199034 Saint-Petersburg, Russia;1. Department of Invertebrate Zoology, Faculty of Biology and Soil Sciences, St. Petersburg State University, Universitetskaja nab. 7/9, 199034 St. Petersburg, Russia;2. Laboratory of Cytology of Unicellular Organisms, Institute of Cytology RAS, Tikhoretsky ave. 4, 194064 St. Petersburg, Russia |
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| Abstract: | We are currently revisiting coccolithophore genera and species described from high latitudes in both hemispheres, and also in the process describing new taxa when appropriate, with the aim of providing the best possible framework for polar species segregation based on external morphological features only. The present paper thus introduces Papposphaera iugifera nov. sp. from West Greenland (Disko – type locality), Svalbard (Isfjorden) and the Baltic Sea (Bothnian Sea). P. iugifera is clearly related to P. sagittifera, P. sarion and P. arctica and forms with these a continuum of species that are, with the exception of P. sarion, on the one hand much similar with respect to calicate spine details, while on the other hand clearly differentiated with respect to the complexity of central area calcification. While this is extensive in P. sagittifera it is reduced to just a single transverse bar or even completely absent in P. iugifera. |
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| Keywords: | Arctic Baltic sea Coccolithophore Electron microscopy Océan Arctique Mer Baltique Coccolithophore Microscopie électronique |
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