Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity
Abstract Polar lakes respond quickly to climate-induced environmental changes. We studied the chemical limnological variability in 127 lakes and ponds from eight ice-free regions along the East Antarctic coastline, and compared repeat specific conductance measurements from lakes in the Larsemann Hil...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1017/s0954102011000642 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000642 |
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crcambridgeupr:10.1017/s0954102011000642 2024-05-12T07:56:05+00:00 Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity Verleyen, Elie Hodgson, Dominic A. Gibson, John Imura, Satoshi Kaup, Enn Kudoh, Sakae De Wever, Aaike Hoshino, Tamotsu McMinn, Andrew Obbels, Dagmar Roberts, Donna Roberts, Steve Sabbe, Koen Souffreau, Caroline Tavernier, Ines van Nieuwenhuyze, Wim van Ranst, Eric Vindevogel, Nicole Vyverman, Wim 2011 http://dx.doi.org/10.1017/s0954102011000642 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000642 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 24, issue 1, page 23-33 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000642 2024-04-18T06:54:05Z Abstract Polar lakes respond quickly to climate-induced environmental changes. We studied the chemical limnological variability in 127 lakes and ponds from eight ice-free regions along the East Antarctic coastline, and compared repeat specific conductance measurements from lakes in the Larsemann Hills and Skarvsnes covering the periods 1987–2009 and 1997–2008, respectively. Specific conductance, the concentration of the major ions, pH and the concentration of the major nutrients underlie the variation in limnology between and within the regions. This limnological variability is probably related to differences in the time of deglaciation, lake origin and evolution, geology and geomorphology of the lake basins and their catchment areas, sub-regional climate patterns, the distance of the lakes and the lake districts to the ice sheet and the Southern Ocean, and the presence of particular biota in the lakes and their catchment areas. In regions where repeat surveys were available, inter-annual and inter-decadal variability in specific conductance was relatively large and most pronounced in the non-dilute lakes with a low lake depth to surface area ratio. We conclude that long-term specific conductance measurements in these lakes are complementary to snow accumulation data from ice cores, inexpensive, easy to obtain, and should thus be part of long-term limnological and biological monitoring programmes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Ice Sheet Southern Ocean Cambridge University Press Antarctic Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Low Lake ENVELOPE(142.677,142.677,-66.993,-66.993) Skarvsnes ENVELOPE(39.667,39.667,-69.467,-69.467) Southern Ocean Antarctic Science 24 1 23 33 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Verleyen, Elie Hodgson, Dominic A. Gibson, John Imura, Satoshi Kaup, Enn Kudoh, Sakae De Wever, Aaike Hoshino, Tamotsu McMinn, Andrew Obbels, Dagmar Roberts, Donna Roberts, Steve Sabbe, Koen Souffreau, Caroline Tavernier, Ines van Nieuwenhuyze, Wim van Ranst, Eric Vindevogel, Nicole Vyverman, Wim Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Polar lakes respond quickly to climate-induced environmental changes. We studied the chemical limnological variability in 127 lakes and ponds from eight ice-free regions along the East Antarctic coastline, and compared repeat specific conductance measurements from lakes in the Larsemann Hills and Skarvsnes covering the periods 1987–2009 and 1997–2008, respectively. Specific conductance, the concentration of the major ions, pH and the concentration of the major nutrients underlie the variation in limnology between and within the regions. This limnological variability is probably related to differences in the time of deglaciation, lake origin and evolution, geology and geomorphology of the lake basins and their catchment areas, sub-regional climate patterns, the distance of the lakes and the lake districts to the ice sheet and the Southern Ocean, and the presence of particular biota in the lakes and their catchment areas. In regions where repeat surveys were available, inter-annual and inter-decadal variability in specific conductance was relatively large and most pronounced in the non-dilute lakes with a low lake depth to surface area ratio. We conclude that long-term specific conductance measurements in these lakes are complementary to snow accumulation data from ice cores, inexpensive, easy to obtain, and should thus be part of long-term limnological and biological monitoring programmes. |
format |
Article in Journal/Newspaper |
author |
Verleyen, Elie Hodgson, Dominic A. Gibson, John Imura, Satoshi Kaup, Enn Kudoh, Sakae De Wever, Aaike Hoshino, Tamotsu McMinn, Andrew Obbels, Dagmar Roberts, Donna Roberts, Steve Sabbe, Koen Souffreau, Caroline Tavernier, Ines van Nieuwenhuyze, Wim van Ranst, Eric Vindevogel, Nicole Vyverman, Wim |
author_facet |
Verleyen, Elie Hodgson, Dominic A. Gibson, John Imura, Satoshi Kaup, Enn Kudoh, Sakae De Wever, Aaike Hoshino, Tamotsu McMinn, Andrew Obbels, Dagmar Roberts, Donna Roberts, Steve Sabbe, Koen Souffreau, Caroline Tavernier, Ines van Nieuwenhuyze, Wim van Ranst, Eric Vindevogel, Nicole Vyverman, Wim |
author_sort |
Verleyen, Elie |
title |
Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
title_short |
Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
title_full |
Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
title_fullStr |
Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
title_full_unstemmed |
Chemical limnology in coastal East Antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
title_sort |
chemical limnology in coastal east antarctic lakes: monitoring future climate change in centres of endemism and biodiversity |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000642 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000642 |
long_lat |
ENVELOPE(76.217,76.217,-69.400,-69.400) ENVELOPE(142.677,142.677,-66.993,-66.993) ENVELOPE(39.667,39.667,-69.467,-69.467) |
geographic |
Antarctic Larsemann Hills Low Lake Skarvsnes Southern Ocean |
geographic_facet |
Antarctic Larsemann Hills Low Lake Skarvsnes Southern Ocean |
genre |
Antarc* Antarctic Antarctic Science Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Science Ice Sheet Southern Ocean |
op_source |
Antarctic Science volume 24, issue 1, page 23-33 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000642 |
container_title |
Antarctic Science |
container_volume |
24 |
container_issue |
1 |
container_start_page |
23 |
op_container_end_page |
33 |
_version_ |
1798836022056845312 |