Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition
The saline lakes of the Vestfold Hills in Antarctica offer a remarkable natural laboratory where the adaptation of planktonic protists to a range of evolving physiochemical conditions can be investigated. This study illustrates how an ancestral marine community has undergone radical simplification l...
Published in: | Journal of Phycology |
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2008
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ftulundlup:oai:lup.lub.lu.se:9b922bc6-7d73-49af-8de5-e1ee7d6116ae 2023-05-15T13:39:35+02:00 Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition Rengefors, Karin Laybourn-Parry, Johanna Logares, Ramiro Hansen, Gert 2008 https://lup.lub.lu.se/record/628745 https://doi.org/10.1111/j.1529-8817.2008.00517.x eng eng Wiley-Blackwell https://lup.lub.lu.se/record/628745 http://dx.doi.org/10.1111/j.1529-8817.2008.00517.x wos:000256123700006 scopus:44349092012 pmid:27041419 Journal of Phycology; 44(3), pp 592-604 (2008) ISSN: 0022-3646 Ecology Antarctica cold-water dinoflagellates dinoflagellate dynamics polar Polarella glacialis saline lakes Scrippsiella hangoei contributiontojournal/article info:eu-repo/semantics/article text 2008 ftulundlup https://doi.org/10.1111/j.1529-8817.2008.00517.x 2023-02-01T23:28:24Z The saline lakes of the Vestfold Hills in Antarctica offer a remarkable natural laboratory where the adaptation of planktonic protists to a range of evolving physiochemical conditions can be investigated. This study illustrates how an ancestral marine community has undergone radical simplification leaving a small number of well-adapted species. Our objective was to investigate the species composition and annual dynamics of dinoflagellate communities in three saline Antarctic lakes. We observed that dinoflagellates occur year-round despite extremely low PAR during the southern winter, which suggests significant mixotrophic or heterotrophic activity. Only a small number of dominant dinoflagellate species were found in each lake, in contrast to the species-rich Southern Ocean from which the lake communities are believed to be derived. We verified that the lake species were representatives of the marine polar dinoflagellate community, and not freshwater species. Polarella glacialis Montresor, Procaccini et Stoecker, a bipolar marine species, was for the first time described in a lake habitat and was an important phototrophic component in the higher salinity lakes. In the brackish lakes, we found a new sibling species to the brackish-water species Scrippsiella hangoei (J. Schiller) J. Larsen, previously observed only in the Baltic Sea. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Lund University Publications (LUP) Antarctic Southern Ocean Vestfold Hills Vestfold Journal of Phycology 44 3 592 604 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Antarctica cold-water dinoflagellates dinoflagellate dynamics polar Polarella glacialis saline lakes Scrippsiella hangoei |
spellingShingle |
Ecology Antarctica cold-water dinoflagellates dinoflagellate dynamics polar Polarella glacialis saline lakes Scrippsiella hangoei Rengefors, Karin Laybourn-Parry, Johanna Logares, Ramiro Hansen, Gert Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
topic_facet |
Ecology Antarctica cold-water dinoflagellates dinoflagellate dynamics polar Polarella glacialis saline lakes Scrippsiella hangoei |
description |
The saline lakes of the Vestfold Hills in Antarctica offer a remarkable natural laboratory where the adaptation of planktonic protists to a range of evolving physiochemical conditions can be investigated. This study illustrates how an ancestral marine community has undergone radical simplification leaving a small number of well-adapted species. Our objective was to investigate the species composition and annual dynamics of dinoflagellate communities in three saline Antarctic lakes. We observed that dinoflagellates occur year-round despite extremely low PAR during the southern winter, which suggests significant mixotrophic or heterotrophic activity. Only a small number of dominant dinoflagellate species were found in each lake, in contrast to the species-rich Southern Ocean from which the lake communities are believed to be derived. We verified that the lake species were representatives of the marine polar dinoflagellate community, and not freshwater species. Polarella glacialis Montresor, Procaccini et Stoecker, a bipolar marine species, was for the first time described in a lake habitat and was an important phototrophic component in the higher salinity lakes. In the brackish lakes, we found a new sibling species to the brackish-water species Scrippsiella hangoei (J. Schiller) J. Larsen, previously observed only in the Baltic Sea. |
format |
Article in Journal/Newspaper |
author |
Rengefors, Karin Laybourn-Parry, Johanna Logares, Ramiro Hansen, Gert |
author_facet |
Rengefors, Karin Laybourn-Parry, Johanna Logares, Ramiro Hansen, Gert |
author_sort |
Rengefors, Karin |
title |
Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
title_short |
Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
title_full |
Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
title_fullStr |
Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
title_full_unstemmed |
Marine-derived dinoflagellates in Antarctic saline lakes: annual dynamics and community composition |
title_sort |
marine-derived dinoflagellates in antarctic saline lakes: annual dynamics and community composition |
publisher |
Wiley-Blackwell |
publishDate |
2008 |
url |
https://lup.lub.lu.se/record/628745 https://doi.org/10.1111/j.1529-8817.2008.00517.x |
geographic |
Antarctic Southern Ocean Vestfold Hills Vestfold |
geographic_facet |
Antarctic Southern Ocean Vestfold Hills Vestfold |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Journal of Phycology; 44(3), pp 592-604 (2008) ISSN: 0022-3646 |
op_relation |
https://lup.lub.lu.se/record/628745 http://dx.doi.org/10.1111/j.1529-8817.2008.00517.x wos:000256123700006 scopus:44349092012 pmid:27041419 |
op_doi |
https://doi.org/10.1111/j.1529-8817.2008.00517.x |
container_title |
Journal of Phycology |
container_volume |
44 |
container_issue |
3 |
container_start_page |
592 |
op_container_end_page |
604 |
_version_ |
1766120571286847488 |