Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics
Udgivelsesdato: 28.04 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 ra...
Published in: | Journal of Phycology |
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ftcopenhagenunip:oai:pure.atira.dk:publications/0f5a16b0-c5f3-11dd-9473-000ea68e967b 2023-06-18T03:37:45+02:00 Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics Rengefors, K. Layborn-Parry, L. Logares, R. Marshall, W.A. Hansen, Gert 2008 https://curis.ku.dk/portal/da/publications/marine-derived-dinoflagellates-in-antarctic-saline-lakes-community-composition-and-annual-dynamics(0f5a16b0-c5f3-11dd-9473-000ea68e967b).html https://doi.org/10.1111/j.1529-8817.2008.00517.x eng eng info:eu-repo/semantics/restrictedAccess Rengefors , K , Layborn-Parry , L , Logares , R , Marshall , W A & Hansen , G 2008 , ' Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics ' , Journal of Phycology , vol. 44 , no. 3 , pp. 592-604 . https://doi.org/10.1111/j.1529-8817.2008.00517.x /dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science article 2008 ftcopenhagenunip https://doi.org/10.1111/j.1529-8817.2008.00517.x 2023-06-07T23:49:07Z Udgivelsesdato: 28.04 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 University of Copenhagen: Research Antarctic Southern Ocean Vestfold Vestfold Hills Journal of Phycology 44 3 592 604 |
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University of Copenhagen: Research |
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/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science |
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/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science Rengefors, K. Layborn-Parry, L. Logares, R. Marshall, W.A. Hansen, Gert Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
topic_facet |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science |
description |
Udgivelsesdato: 28.04 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, K. Layborn-Parry, L. Logares, R. Marshall, W.A. Hansen, Gert |
author_facet |
Rengefors, K. Layborn-Parry, L. Logares, R. Marshall, W.A. Hansen, Gert |
author_sort |
Rengefors, K. |
title |
Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
title_short |
Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
title_full |
Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
title_fullStr |
Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
title_full_unstemmed |
Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics |
title_sort |
marine derived dinoflagellates in antarctic saline lakes: community composition and annual dynamics |
publishDate |
2008 |
url |
https://curis.ku.dk/portal/da/publications/marine-derived-dinoflagellates-in-antarctic-saline-lakes-community-composition-and-annual-dynamics(0f5a16b0-c5f3-11dd-9473-000ea68e967b).html https://doi.org/10.1111/j.1529-8817.2008.00517.x |
geographic |
Antarctic Southern Ocean Vestfold Vestfold Hills |
geographic_facet |
Antarctic Southern Ocean Vestfold Vestfold Hills |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Rengefors , K , Layborn-Parry , L , Logares , R , Marshall , W A & Hansen , G 2008 , ' Marine derived dinoflagellates in Antarctic saline lakes: Community composition and annual dynamics ' , Journal of Phycology , vol. 44 , no. 3 , pp. 592-604 . https://doi.org/10.1111/j.1529-8817.2008.00517.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
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 |
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1769010513989074944 |