Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities

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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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Autores principales:	Vinocur, Alicia Liliana, Unrein, Fernando
Publicado:	2000
Materias:	classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p858_Vinocur http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_07224060_v23_n12_p858_Vinocur
record_format	dspace
spelling	paper:paper_07224060_v23_n12_p858_Vinocur2025-07-30T18:19:57Z Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities Vinocur, Alicia Liliana Unrein, Fernando classification environmental factor lentic environment physicochemical property phytoplankton Antarctica King George Island South Shetland Islands 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. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p858_Vinocur http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
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, Alicia Liliana Unrein, Fernando 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.
author	Vinocur, Alicia Liliana Unrein, Fernando
author_facet	Vinocur, Alicia Liliana Unrein, Fernando
author_sort	Vinocur, Alicia Liliana
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
publishDate	2000
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p858_Vinocur http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p858_Vinocur
work_keys_str_mv	AT vinocuralicialiliana typologyoflenticwaterbodiesatpotterpeninsulakinggeorgeislandantarcticabasedonphysicalchemicalcharacteristicsandphytoplanktoncommunities AT unreinfernando typologyoflenticwaterbodiesatpotterpeninsulakinggeorgeislandantarcticabasedonphysicalchemicalcharacteristicsandphytoplanktoncommunities
_version_	1840328457594077184

Typology of lentic water bodies at Potter Peninsula (King George Island, Antarctica) based on physical-chemical characteristics and phytoplankton communities

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