Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island
Fildes Peninsula, in King George Island, Antarctica, has a great concentration of international facilities, and it has clearly been affected by human activities. The objective of this 5-year study was to assess the impact of anthropogenic activities on the bacterial abundance in water bodies close t...
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ftarcticportal:oai:generic.eprints.org:2564 2023-11-12T03:59:42+01:00 Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island Morel, María A. Braña, Victoria Martinez-Rosales, Cecilia Cagide, Célica Castro-Sowinski, Susana 2015-03 application/pdf http://library.arcticportal.org/2564/ http://library.arcticportal.org/2564/1/A20150113.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2564/1/A20150113.pdf Morel, María A. and Braña, Victoria and Martinez-Rosales, Cecilia and Cagide, Célica and Castro-Sowinski, Susana (2015) Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island. Advances in Polar Science, 26 (1). pp. 102-106. Cryosphere Article PeerReviewed 2015 ftarcticportal 2023-11-01T23:54:37Z Fildes Peninsula, in King George Island, Antarctica, has a great concentration of international facilities, and it has clearly been affected by human activities. The objective of this 5-year study was to assess the impact of anthropogenic activities on the bacterial abundance in water bodies close to Artigas Antarctic Scientific Base (BCAA, in Spanish Base Científica Antártica Artigas). Water samples from areas under different human influence (Uruguay Lake, nearby ponds, and meltwater from Collins Glacier) were aseptically collected and refrigerated until processed. The number of heterotrophic bacteria and Pseudomonas spp. was analyzed using a culture-dependent approach. Physico-chemical properties of the water samples (temperature, pH, and conductivity) were also determined. Results showed that water from the highly affected area, Uruguay Lake, where the pump that provides water to the BCAA is located, did not suffer significant fluctuations in heterotrophic bacterial abundance (104–105 CFU∙mL−1); however, Pseudomonas abundance increased until becoming the predominant population. In other water samples, the number of heterotrophic bacteria and Pseudomonas gradually increased during this 5-year study, by 2014 reaching similar values to those observed for Uruguay Lake. The implications of human activities on Antarctic bacterial abundance are discussed. Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Antarctica Antártica Collins Glacier King George Island Polar Science Polar Science Arctic Portal Library |
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Cryosphere |
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Cryosphere Morel, María A. Braña, Victoria Martinez-Rosales, Cecilia Cagide, Célica Castro-Sowinski, Susana Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
topic_facet |
Cryosphere |
description |
Fildes Peninsula, in King George Island, Antarctica, has a great concentration of international facilities, and it has clearly been affected by human activities. The objective of this 5-year study was to assess the impact of anthropogenic activities on the bacterial abundance in water bodies close to Artigas Antarctic Scientific Base (BCAA, in Spanish Base Científica Antártica Artigas). Water samples from areas under different human influence (Uruguay Lake, nearby ponds, and meltwater from Collins Glacier) were aseptically collected and refrigerated until processed. The number of heterotrophic bacteria and Pseudomonas spp. was analyzed using a culture-dependent approach. Physico-chemical properties of the water samples (temperature, pH, and conductivity) were also determined. Results showed that water from the highly affected area, Uruguay Lake, where the pump that provides water to the BCAA is located, did not suffer significant fluctuations in heterotrophic bacterial abundance (104–105 CFU∙mL−1); however, Pseudomonas abundance increased until becoming the predominant population. In other water samples, the number of heterotrophic bacteria and Pseudomonas gradually increased during this 5-year study, by 2014 reaching similar values to those observed for Uruguay Lake. The implications of human activities on Antarctic bacterial abundance are discussed. |
format |
Article in Journal/Newspaper |
author |
Morel, María A. Braña, Victoria Martinez-Rosales, Cecilia Cagide, Célica Castro-Sowinski, Susana |
author_facet |
Morel, María A. Braña, Victoria Martinez-Rosales, Cecilia Cagide, Célica Castro-Sowinski, Susana |
author_sort |
Morel, María A. |
title |
Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
title_short |
Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
title_full |
Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
title_fullStr |
Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
title_full_unstemmed |
Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island |
title_sort |
five-year bio-monitoring of aquatic ecosystems near artigas antarctic scientific base, king george island |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2015 |
url |
http://library.arcticportal.org/2564/ http://library.arcticportal.org/2564/1/A20150113.pdf |
genre |
Advances in Polar Science Antarc* Antarctic Antarctica Antártica Collins Glacier King George Island Polar Science Polar Science |
genre_facet |
Advances in Polar Science Antarc* Antarctic Antarctica Antártica Collins Glacier King George Island Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2564/1/A20150113.pdf Morel, María A. and Braña, Victoria and Martinez-Rosales, Cecilia and Cagide, Célica and Castro-Sowinski, Susana (2015) Five-year bio-monitoring of aquatic ecosystems near Artigas Antarctic Scientific Base, King George Island. Advances in Polar Science, 26 (1). pp. 102-106. |
_version_ |
1782333253009539072 |