The plankton of a large oligotrophic fresh-water Antarctic lake
The planktonic community of Crooked Lake, a large freshwater lake in the Vestfold Hills, Antarctica was investigated during the austral summer in 1990. Very low levels of chlorophyll a ranging between mean values of 0 29 and 1.8 l-1 were recorded. The phytoplankton was largely made up of coloured fl...
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Language: | English |
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Oxford University Press
1991
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Online Access: | https://doi.org/10.1093/plankt/13.6.1137 http://ecite.utas.edu.au/49481 |
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ftunivtasecite:oai:ecite.utas.edu.au:49481 2023-05-15T13:40:51+02:00 The plankton of a large oligotrophic fresh-water Antarctic lake Laybourn-Parry, J Marchant, HJ Brown, PE 1991 https://doi.org/10.1093/plankt/13.6.1137 http://ecite.utas.edu.au/49481 en eng Oxford University Press http://dx.doi.org/10.1093/plankt/13.6.1137 Laybourn-Parry, J and Marchant, HJ and Brown, PE, The plankton of a large oligotrophic fresh-water Antarctic lake, Journal of Plankton Research, 13, (6) pp. 1137-1150. ISSN 0142-7873 (1991) [Refereed Article] http://ecite.utas.edu.au/49481 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Refereed Article PeerReviewed 1991 ftunivtasecite https://doi.org/10.1093/plankt/13.6.1137 2019-12-13T21:24:03Z The planktonic community of Crooked Lake, a large freshwater lake in the Vestfold Hills, Antarctica was investigated during the austral summer in 1990. Very low levels of chlorophyll a ranging between mean values of 0 29 and 1.8 l-1 were recorded. The phytoplankton was largely made up of coloured flagellates, including single species of Chlamydomonas, Ochromonas and Pendimum, which occurred in low concentrations (23.8 102-47.3 102 l-1). Heterotrophic colourless flagellates, including Paraphysomonas vestita, were also relatively sparse (2.1 102-21.3102 l-1). Ciliated protozoans were particularly poorly represented. Only three species occurred reaching densities of 1001-1, and among them the mixotrophic species Strombidium vinde was the most common. A single species of heliozoan Actinosphaerium and relatively large numbers of naked amoebae were the sarcodine representatives The protistan community and the bacteria were concentrated into microbial consortia associated with floes of paniculate organic matter probably derived from the benthic algal mat. Of the two microcrustacean zooplankters recorded from the lake only Daphniopsis studeri was found breeding in the plankton in very low numbers. The behavioural and physiological adaptations of the organisms inhabiting this extremely oligotrophic environment are discussed. 1991 Oxford University Press. Article in Journal/Newspaper Antarc* Antarctic Antarctica eCite UTAS (University of Tasmania) Antarctic Austral Crooked Lake ENVELOPE(78.382,78.382,-68.617,-68.617) Vestfold Vestfold Hills Journal of Plankton Research 13 6 1137 1149 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Laybourn-Parry, J Marchant, HJ Brown, PE The plankton of a large oligotrophic fresh-water Antarctic lake |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
The planktonic community of Crooked Lake, a large freshwater lake in the Vestfold Hills, Antarctica was investigated during the austral summer in 1990. Very low levels of chlorophyll a ranging between mean values of 0 29 and 1.8 l-1 were recorded. The phytoplankton was largely made up of coloured flagellates, including single species of Chlamydomonas, Ochromonas and Pendimum, which occurred in low concentrations (23.8 102-47.3 102 l-1). Heterotrophic colourless flagellates, including Paraphysomonas vestita, were also relatively sparse (2.1 102-21.3102 l-1). Ciliated protozoans were particularly poorly represented. Only three species occurred reaching densities of 1001-1, and among them the mixotrophic species Strombidium vinde was the most common. A single species of heliozoan Actinosphaerium and relatively large numbers of naked amoebae were the sarcodine representatives The protistan community and the bacteria were concentrated into microbial consortia associated with floes of paniculate organic matter probably derived from the benthic algal mat. Of the two microcrustacean zooplankters recorded from the lake only Daphniopsis studeri was found breeding in the plankton in very low numbers. The behavioural and physiological adaptations of the organisms inhabiting this extremely oligotrophic environment are discussed. 1991 Oxford University Press. |
format |
Article in Journal/Newspaper |
author |
Laybourn-Parry, J Marchant, HJ Brown, PE |
author_facet |
Laybourn-Parry, J Marchant, HJ Brown, PE |
author_sort |
Laybourn-Parry, J |
title |
The plankton of a large oligotrophic fresh-water Antarctic lake |
title_short |
The plankton of a large oligotrophic fresh-water Antarctic lake |
title_full |
The plankton of a large oligotrophic fresh-water Antarctic lake |
title_fullStr |
The plankton of a large oligotrophic fresh-water Antarctic lake |
title_full_unstemmed |
The plankton of a large oligotrophic fresh-water Antarctic lake |
title_sort |
plankton of a large oligotrophic fresh-water antarctic lake |
publisher |
Oxford University Press |
publishDate |
1991 |
url |
https://doi.org/10.1093/plankt/13.6.1137 http://ecite.utas.edu.au/49481 |
long_lat |
ENVELOPE(78.382,78.382,-68.617,-68.617) |
geographic |
Antarctic Austral Crooked Lake Vestfold Vestfold Hills |
geographic_facet |
Antarctic Austral Crooked Lake Vestfold Vestfold Hills |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
http://dx.doi.org/10.1093/plankt/13.6.1137 Laybourn-Parry, J and Marchant, HJ and Brown, PE, The plankton of a large oligotrophic fresh-water Antarctic lake, Journal of Plankton Research, 13, (6) pp. 1137-1150. ISSN 0142-7873 (1991) [Refereed Article] http://ecite.utas.edu.au/49481 |
op_doi |
https://doi.org/10.1093/plankt/13.6.1137 |
container_title |
Journal of Plankton Research |
container_volume |
13 |
container_issue |
6 |
container_start_page |
1137 |
op_container_end_page |
1149 |
_version_ |
1766141408494747648 |