Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica

The epilithic biomass of an outflow stream at Potter Peninsula (King George Island, Antarctica) was studied from November 1996 to February 1997 by means of chlorophyll a concentration, dry weight and ash-free dry weight. The Autotrophic Index and the Lakatos classification were also used in order to...

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Autores principales:	Pizarro, Haydee Norma, Vinocur, Alicia Liliana
Publicado:	2000
Materias:	biomass epilithon lake ecosystem outflow Antarctica King George Island South Shetland Islands
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p851_Pizarro http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p851_Pizarro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_07224060_v23_n12_p851_Pizarro
record_format	dspace
spelling	paper:paper_07224060_v23_n12_p851_Pizarro2023-06-08T15:43:27Z Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica Pizarro, Haydee Norma Vinocur, Alicia Liliana biomass epilithon lake ecosystem outflow Antarctica King George Island South Shetland Islands The epilithic biomass of an outflow stream at Potter Peninsula (King George Island, Antarctica) was studied from November 1996 to February 1997 by means of chlorophyll a concentration, dry weight and ash-free dry weight. The Autotrophic Index and the Lakatos classification were also used in order to characterize the epilithic community. Several physical and chemical parameters were analyzed. Snow and ice melt greatly increased water flow through Tres Hermanos Lake and in the stream. Chlorophyll a concentrations fluctuated between undetectable and 3.5 μg cm-2 with a marked increase, which averaged 3 orders of magnitude, towards the end of the study period. Dry weight ranged between 299.9 and 13,118.7 μg cm-2 and ash-free dry weight between 70.8 and 996.9 μg cm-2. According to the Autotrophic Index and the Lakatos classification, the epilithon of the stream had a low mass with low organic component and large amount of inorganic sediment. The organic matter comprised a low proportion of chlorophyll a and a major proportion of probably detritus or bacteria, rather than fauna. Fil:Pizarro, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vinocur, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p851_Pizarro http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p851_Pizarro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	biomass epilithon lake ecosystem outflow Antarctica King George Island South Shetland Islands
spellingShingle	biomass epilithon lake ecosystem outflow Antarctica King George Island South Shetland Islands Pizarro, Haydee Norma Vinocur, Alicia Liliana Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
topic_facet	biomass epilithon lake ecosystem outflow Antarctica King George Island South Shetland Islands
description	The epilithic biomass of an outflow stream at Potter Peninsula (King George Island, Antarctica) was studied from November 1996 to February 1997 by means of chlorophyll a concentration, dry weight and ash-free dry weight. The Autotrophic Index and the Lakatos classification were also used in order to characterize the epilithic community. Several physical and chemical parameters were analyzed. Snow and ice melt greatly increased water flow through Tres Hermanos Lake and in the stream. Chlorophyll a concentrations fluctuated between undetectable and 3.5 μg cm-2 with a marked increase, which averaged 3 orders of magnitude, towards the end of the study period. Dry weight ranged between 299.9 and 13,118.7 μg cm-2 and ash-free dry weight between 70.8 and 996.9 μg cm-2. According to the Autotrophic Index and the Lakatos classification, the epilithon of the stream had a low mass with low organic component and large amount of inorganic sediment. The organic matter comprised a low proportion of chlorophyll a and a major proportion of probably detritus or bacteria, rather than fauna.
author	Pizarro, Haydee Norma Vinocur, Alicia Liliana
author_facet	Pizarro, Haydee Norma Vinocur, Alicia Liliana
author_sort	Pizarro, Haydee Norma
title	Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
title_short	Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
title_full	Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
title_fullStr	Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
title_full_unstemmed	Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica
title_sort	epilithic biomass in an outflow stream at potter peninsula, king george island, antarctica
publishDate	2000
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n12_p851_Pizarro http://hdl.handle.net/20.500.12110/paper_07224060_v23_n12_p851_Pizarro
work_keys_str_mv	AT pizarrohaydeenorma epilithicbiomassinanoutflowstreamatpotterpeninsulakinggeorgeislandantarctica AT vinocuralicialiliana epilithicbiomassinanoutflowstreamatpotterpeninsulakinggeorgeislandantarctica
_version_	1768541898321952768

Epilithic biomass in an outflow stream at Potter Peninsula, King George Island, Antarctica

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