Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species
Marine tardigrades in the Antarctic and sub-Antarctic regions are poorly understood. During the 59th Japan Antarctic Research Expedition, a sediment sample was collected from Ltzow-Holm Bay, East Antarctica. The sediment sample yielded three species of marine tardigrades belonging to the family Styr...
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ftunivtasecite:oai:ecite.utas.edu.au:143775 2023-05-15T13:59:46+02:00 Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species Fujimoto, S Suzuki, AC Ito, M Tamura, T Tsujimoto, M 2020 https://doi.org/10.1007/s00300-020-02671-w http://ecite.utas.edu.au/143775 en eng Springer-Verlag http://dx.doi.org/10.1007/s00300-020-02671-w Fujimoto, S and Suzuki, AC and Ito, M and Tamura, T and Tsujimoto, M, Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species, Polar Biology, 43, (6) pp. 679-693. ISSN 0722-4060 (2020) [Refereed Article] http://ecite.utas.edu.au/143775 Biological Sciences Evolutionary biology Phylogeny and comparative analysis Refereed Article PeerReviewed 2020 ftunivtasecite https://doi.org/10.1007/s00300-020-02671-w 2021-09-27T22:16:46Z Marine tardigrades in the Antarctic and sub-Antarctic regions are poorly understood. During the 59th Japan Antarctic Research Expedition, a sediment sample was collected from Ltzow-Holm Bay, East Antarctica. The sediment sample yielded three species of marine tardigrades belonging to the family Styraconyxidae Kristensen & Renaud-Mornant, 1983: Angursa antarctica Villora-Moreno, 1998, Styraconyx cf. qivitoq Kristensen & Higgins, 1984, and S. takeshii sp. nov. The new species resembles S. nanoqsunguak Kristensen & Higgins, 1984 by the overall morphology, but the new species has thick seminal receptacle ducts that do not terminate in typical, swelled vesicles, in contrast to S. nanoqsunguak s narrow seminal receptacle ducts that terminate in small vesicles. The presence of the undivided mouth papilla and the larger body further differentiates the new species from S. nanoqsunguak . We also report a young adult female with a gonopore, but lacking seminal receptacles in the new species. As well as morphological information, we provided the sequences of the new species nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I fragments. Using the former molecular data, phylogenetic analyses of Styraconyxidae were conducted and polyphyly of Styraconyx was suggested. The biogeography of marine tardigrades in the Antarctic and sub-Antarctic regions are also discussed. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Polar Biology eCite UTAS (University of Tasmania) Antarctic The Antarctic East Antarctica Moreno ENVELOPE(-62.300,-62.300,-64.083,-64.083) Renaud ENVELOPE(-67.950,-67.950,-65.700,-65.700) Kristensen ENVELOPE(-159.667,-159.667,-86.333,-86.333) Polar Biology 43 6 679 693 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Evolutionary biology Phylogeny and comparative analysis |
spellingShingle |
Biological Sciences Evolutionary biology Phylogeny and comparative analysis Fujimoto, S Suzuki, AC Ito, M Tamura, T Tsujimoto, M Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
topic_facet |
Biological Sciences Evolutionary biology Phylogeny and comparative analysis |
description |
Marine tardigrades in the Antarctic and sub-Antarctic regions are poorly understood. During the 59th Japan Antarctic Research Expedition, a sediment sample was collected from Ltzow-Holm Bay, East Antarctica. The sediment sample yielded three species of marine tardigrades belonging to the family Styraconyxidae Kristensen & Renaud-Mornant, 1983: Angursa antarctica Villora-Moreno, 1998, Styraconyx cf. qivitoq Kristensen & Higgins, 1984, and S. takeshii sp. nov. The new species resembles S. nanoqsunguak Kristensen & Higgins, 1984 by the overall morphology, but the new species has thick seminal receptacle ducts that do not terminate in typical, swelled vesicles, in contrast to S. nanoqsunguak s narrow seminal receptacle ducts that terminate in small vesicles. The presence of the undivided mouth papilla and the larger body further differentiates the new species from S. nanoqsunguak . We also report a young adult female with a gonopore, but lacking seminal receptacles in the new species. As well as morphological information, we provided the sequences of the new species nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I fragments. Using the former molecular data, phylogenetic analyses of Styraconyxidae were conducted and polyphyly of Styraconyx was suggested. The biogeography of marine tardigrades in the Antarctic and sub-Antarctic regions are also discussed. |
format |
Article in Journal/Newspaper |
author |
Fujimoto, S Suzuki, AC Ito, M Tamura, T Tsujimoto, M |
author_facet |
Fujimoto, S Suzuki, AC Ito, M Tamura, T Tsujimoto, M |
author_sort |
Fujimoto, S |
title |
Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
title_short |
Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
title_full |
Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
title_fullStr |
Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
title_full_unstemmed |
Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species |
title_sort |
marine tardigrades from lutzow-holm bay, east antarctica with the description of a new species |
publisher |
Springer-Verlag |
publishDate |
2020 |
url |
https://doi.org/10.1007/s00300-020-02671-w http://ecite.utas.edu.au/143775 |
long_lat |
ENVELOPE(-62.300,-62.300,-64.083,-64.083) ENVELOPE(-67.950,-67.950,-65.700,-65.700) ENVELOPE(-159.667,-159.667,-86.333,-86.333) |
geographic |
Antarctic The Antarctic East Antarctica Moreno Renaud Kristensen |
geographic_facet |
Antarctic The Antarctic East Antarctica Moreno Renaud Kristensen |
genre |
Antarc* Antarctic Antarctica East Antarctica Polar Biology |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Polar Biology |
op_relation |
http://dx.doi.org/10.1007/s00300-020-02671-w Fujimoto, S and Suzuki, AC and Ito, M and Tamura, T and Tsujimoto, M, Marine tardigrades from Lutzow-Holm Bay, East Antarctica with the description of a new species, Polar Biology, 43, (6) pp. 679-693. ISSN 0722-4060 (2020) [Refereed Article] http://ecite.utas.edu.au/143775 |
op_doi |
https://doi.org/10.1007/s00300-020-02671-w |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
6 |
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679 |
op_container_end_page |
693 |
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1766268569541148672 |