Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities
During austral summer 1995/1996, 26 ultraoligotrophic to hypereutrophic ponds and lakes on Potter Peninsula (King George Island, Antarctica) were characterized on the basis of abiotic factors and the phytoplankton community. The influence of vegetation and animal presence in the catchment, morphomet...
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ftunibueairesbd:todo:paper_07224060_v23_n12_p858_Vinocur 2023-10-29T02:32:28+01:00 Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities Vinocur, A. Unrein, F. https://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur unknown http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_07224060_v23_n12_p858_Vinocur 2023-10-05T02:01:53Z During austral summer 1995/1996, 26 ultraoligotrophic to hypereutrophic ponds and lakes on Potter Peninsula (King George Island, Antarctica) were characterized on the basis of abiotic factors and the phytoplankton community. The influence of vegetation and animal presence in the catchment, morphometric variables of the water bodies and their proximity to the sea on composition and abundance of phytoplankton was also considered. Results of a Principal Component Analysis show that the characteristics of each catchment strongly influenced the abiotic parameter accounting for the obtained lake and pond ordination. In particular, five groups of water bodies were clearly defined primarily based on nutrients and suspended solid concentrations, and to a lesser extent on pH and conductivity. These groups could be classified into two assemblages distributed along a phytoplankton biomass gradient, which is regulated by the light availability in one case and by nutrient concentrations in the other. Among 140 algal taxa registered, 3 were new records for Antarctica and 18 taxa were new records for Potter Peninsula. Bacillariophyceae was the dominant class in terms of species number and density. Chlorophyta and Cyanobacteria were subdominant. The tychoplanktonic habit was the best represented in almost all lakes. Fil:Vinocur, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Unrein, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Journal/Newspaper Antarc* Antarctica King George Island South Shetland Islands Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands |
spellingShingle |
classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands Vinocur, A. Unrein, F. Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
topic_facet |
classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands |
description |
During austral summer 1995/1996, 26 ultraoligotrophic to hypereutrophic ponds and lakes on Potter Peninsula (King George Island, Antarctica) were characterized on the basis of abiotic factors and the phytoplankton community. The influence of vegetation and animal presence in the catchment, morphometric variables of the water bodies and their proximity to the sea on composition and abundance of phytoplankton was also considered. Results of a Principal Component Analysis show that the characteristics of each catchment strongly influenced the abiotic parameter accounting for the obtained lake and pond ordination. In particular, five groups of water bodies were clearly defined primarily based on nutrients and suspended solid concentrations, and to a lesser extent on pH and conductivity. These groups could be classified into two assemblages distributed along a phytoplankton biomass gradient, which is regulated by the light availability in one case and by nutrient concentrations in the other. Among 140 algal taxa registered, 3 were new records for Antarctica and 18 taxa were new records for Potter Peninsula. Bacillariophyceae was the dominant class in terms of species number and density. Chlorophyta and Cyanobacteria were subdominant. The tychoplanktonic habit was the best represented in almost all lakes. Fil:Vinocur, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Unrein, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
format |
Journal/Newspaper |
author |
Vinocur, A. Unrein, F. |
author_facet |
Vinocur, A. Unrein, F. |
author_sort |
Vinocur, A. |
title |
Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
title_short |
Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
title_full |
Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
title_fullStr |
Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
title_full_unstemmed |
Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities |
title_sort |
typology of lentic water bodies at potter peninsula (king george island, antarctica) based on physical-chemical characteristics and phytoplankton communities |
url |
https://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur |
genre |
Antarc* Antarctica King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctica King George Island South Shetland Islands |
op_relation |
http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_doi |
https://doi.org/20.500.12110/paper_07224060_v23_n12_p858_Vinocur |
_version_ |
1781053940952989696 |