Ace Lake: three decades of research on a meromictic, Antarctic lake
Ace Lake (Vestfold Hills, Antarctica) has been investigated since the 1970s. Its close proximity to Davis Station has allowed year-long, as well as summer only, investigations. Ace Lake is a saline meromictic (permanently stratified) lake with strong physical and chemical gradients. The lake is one...
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Online Access: | https://hdl.handle.net/1983/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://research-information.bris.ac.uk/en/publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://doi.org/10.1007/s00300-014-1553-3 |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 2024-04-28T07:57:33+00:00 Ace Lake: three decades of research on a meromictic, Antarctic lake Laybourn-Parry, Jo Bell, Elanor 2014 https://hdl.handle.net/1983/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://research-information.bris.ac.uk/en/publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://doi.org/10.1007/s00300-014-1553-3 eng eng https://research-information.bris.ac.uk/en/publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 info:eu-repo/semantics/restrictedAccess Laybourn-Parry , J & Bell , E 2014 , ' Ace Lake: three decades of research on a meromictic, Antarctic lake ' , Polar Biology , vol. 37 , pp. 1685 . https://doi.org/10.1007/s00300-014-1553-3 article 2014 ftubristolcris https://doi.org/10.1007/s00300-014-1553-3 2024-04-03T15:23:47Z Ace Lake (Vestfold Hills, Antarctica) has been investigated since the 1970s. Its close proximity to Davis Station has allowed year-long, as well as summer only, investigations. Ace Lake is a saline meromictic (permanently stratified) lake with strong physical and chemical gradients. The lake is one of the most studied lakes in continental Antarctica. Here we review the current knowledge of the history, the physical and chemical environment, community structure and functional dynamics of the mixolimnion, littoral benthic algal mats, the lower anoxic monimolimnion and the sediment within the monimolimnion. In common with other continental meromictic Antarctic lakes, Ace Lake possesses a truncated food web dominated by prokaryote and eukaryote microorganisms in the upper aerobic mixolimnion, and an anaerobic prokaryote community in the monimolimnion, where methanogenic Archaea, sulphate-reducing and sulphur-oxidizing bacteria occur. These communities are functional in winter at subzero temperatures, when mixotrophy plays an important role in survival in dominant photosynthetic eukaryotic microorganisms in the mixolimnion. The productivity of Ace Lake is comparable to other saline lakes in the Vestfold Hills, but higher than that seen in the more southerly McMurdo Dry Valley lakes. Finally we identify gaps in the current knowledge and avenues that demand further investigation, including comparisons with analogous lakes in the North Polar region. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Biology University of Bristol: Bristol Research Polar Biology 37 11 1685 1699 |
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Open Polar |
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University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Ace Lake (Vestfold Hills, Antarctica) has been investigated since the 1970s. Its close proximity to Davis Station has allowed year-long, as well as summer only, investigations. Ace Lake is a saline meromictic (permanently stratified) lake with strong physical and chemical gradients. The lake is one of the most studied lakes in continental Antarctica. Here we review the current knowledge of the history, the physical and chemical environment, community structure and functional dynamics of the mixolimnion, littoral benthic algal mats, the lower anoxic monimolimnion and the sediment within the monimolimnion. In common with other continental meromictic Antarctic lakes, Ace Lake possesses a truncated food web dominated by prokaryote and eukaryote microorganisms in the upper aerobic mixolimnion, and an anaerobic prokaryote community in the monimolimnion, where methanogenic Archaea, sulphate-reducing and sulphur-oxidizing bacteria occur. These communities are functional in winter at subzero temperatures, when mixotrophy plays an important role in survival in dominant photosynthetic eukaryotic microorganisms in the mixolimnion. The productivity of Ace Lake is comparable to other saline lakes in the Vestfold Hills, but higher than that seen in the more southerly McMurdo Dry Valley lakes. Finally we identify gaps in the current knowledge and avenues that demand further investigation, including comparisons with analogous lakes in the North Polar region. |
format |
Article in Journal/Newspaper |
author |
Laybourn-Parry, Jo Bell, Elanor |
spellingShingle |
Laybourn-Parry, Jo Bell, Elanor Ace Lake: three decades of research on a meromictic, Antarctic lake |
author_facet |
Laybourn-Parry, Jo Bell, Elanor |
author_sort |
Laybourn-Parry, Jo |
title |
Ace Lake: three decades of research on a meromictic, Antarctic lake |
title_short |
Ace Lake: three decades of research on a meromictic, Antarctic lake |
title_full |
Ace Lake: three decades of research on a meromictic, Antarctic lake |
title_fullStr |
Ace Lake: three decades of research on a meromictic, Antarctic lake |
title_full_unstemmed |
Ace Lake: three decades of research on a meromictic, Antarctic lake |
title_sort |
ace lake: three decades of research on a meromictic, antarctic lake |
publishDate |
2014 |
url |
https://hdl.handle.net/1983/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://research-information.bris.ac.uk/en/publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 https://doi.org/10.1007/s00300-014-1553-3 |
genre |
Antarc* Antarctic Antarctica Polar Biology |
genre_facet |
Antarc* Antarctic Antarctica Polar Biology |
op_source |
Laybourn-Parry , J & Bell , E 2014 , ' Ace Lake: three decades of research on a meromictic, Antarctic lake ' , Polar Biology , vol. 37 , pp. 1685 . https://doi.org/10.1007/s00300-014-1553-3 |
op_relation |
https://research-information.bris.ac.uk/en/publications/8f5d846e-0b68-468d-9a65-dcbf06b63fa9 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-014-1553-3 |
container_title |
Polar Biology |
container_volume |
37 |
container_issue |
11 |
container_start_page |
1685 |
op_container_end_page |
1699 |
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1797589186502459392 |