Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season

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Plankton communities and hydrochemistry of an oligotrophic lake occupying a glacial valley in Argentinian Patagonia (42 °49′S; 71 °43′W) were studied. Monthly samples at three stations integrated from 0 to 50 m and stratified samples at the site of maximum depth, were taken during the growing season...

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Autores principales: Pizzolon, L., Santinelli, N., Marinone, M.C., Menu-Marque, S.A.
Formato: JOUR
Materias:
nitrogen limitation
oligotrophy
Patagonia
phytoplankton
spatial heterogeneity
zooplancton
diatom
hydrochemistry
nitrogen
oligotrophic lake
population density
water chemistry
zooplankton
Argentina, Patagonia, Lake Futalaufquen
Boeckellidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00188158_v316_n1_p63_Pizzolon
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00188158_v316_n1_p63_Pizzolon
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spelling todo:paper_00188158_v316_n1_p63_Pizzolon2023-10-03T14:15:46Z Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season Pizzolon, L. Santinelli, N. Marinone, M.C. Menu-Marque, S.A. nitrogen limitation oligotrophy Patagonia phytoplankton spatial heterogeneity zooplancton diatom hydrochemistry nitrogen oligotrophic lake phytoplankton population density water chemistry zooplankton Argentina, Patagonia, Lake Futalaufquen Boeckellidae Plankton communities and hydrochemistry of an oligotrophic lake occupying a glacial valley in Argentinian Patagonia (42 °49′S; 71 °43′W) were studied. Monthly samples at three stations integrated from 0 to 50 m and stratified samples at the site of maximum depth, were taken during the growing season. Transparency was always controlled by glacial silt, and not by phytoplankton. Lake water belongs to the calcium-bicarbonate type, with low conductivity (24 μS cm-1), and poor buffering capacity. Forty-five phytoplankton taxa were found. Mean phytoplankton density was 49 cells ml-1 and mean biomass 69 μg l-1. N:P relationships, inorganic nitrogen exhaustion in the photic layer, and correlations between nutrients and phytoplankton density suggests nitrogen as the main limiting factor. Fifteen zooplankton species were found. Mean zooplankton density was 12.2 ind. l-1 and mean biomass 22.9 μg l-1. Diatoms and Boeckellidae were the dominant planktonic groups. Morphometry and hydrological factors were responsible for horizontal heterogeneity in phytoplankton and chemical variables. © 1995 Kluwer Academic Publishers. Fil:Menu-Marque, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00188158_v316_n1_p63_Pizzolon
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic nitrogen limitation
oligotrophy
Patagonia
phytoplankton
spatial heterogeneity
zooplancton
diatom
hydrochemistry
nitrogen
oligotrophic lake
phytoplankton
population density
water chemistry
zooplankton
Argentina, Patagonia, Lake Futalaufquen
Boeckellidae
spellingShingle nitrogen limitation
oligotrophy
Patagonia
phytoplankton
spatial heterogeneity
zooplancton
diatom
hydrochemistry
nitrogen
oligotrophic lake
phytoplankton
population density
water chemistry
zooplankton
Argentina, Patagonia, Lake Futalaufquen
Boeckellidae
Pizzolon, L.
Santinelli, N.
Marinone, M.C.
Menu-Marque, S.A.
Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
topic_facet nitrogen limitation
oligotrophy
Patagonia
phytoplankton
spatial heterogeneity
zooplancton
diatom
hydrochemistry
nitrogen
oligotrophic lake
phytoplankton
population density
water chemistry
zooplankton
Argentina, Patagonia, Lake Futalaufquen
Boeckellidae
description Plankton communities and hydrochemistry of an oligotrophic lake occupying a glacial valley in Argentinian Patagonia (42 °49′S; 71 °43′W) were studied. Monthly samples at three stations integrated from 0 to 50 m and stratified samples at the site of maximum depth, were taken during the growing season. Transparency was always controlled by glacial silt, and not by phytoplankton. Lake water belongs to the calcium-bicarbonate type, with low conductivity (24 μS cm-1), and poor buffering capacity. Forty-five phytoplankton taxa were found. Mean phytoplankton density was 49 cells ml-1 and mean biomass 69 μg l-1. N:P relationships, inorganic nitrogen exhaustion in the photic layer, and correlations between nutrients and phytoplankton density suggests nitrogen as the main limiting factor. Fifteen zooplankton species were found. Mean zooplankton density was 12.2 ind. l-1 and mean biomass 22.9 μg l-1. Diatoms and Boeckellidae were the dominant planktonic groups. Morphometry and hydrological factors were responsible for horizontal heterogeneity in phytoplankton and chemical variables. © 1995 Kluwer Academic Publishers.
format JOUR
author Pizzolon, L.
Santinelli, N.
Marinone, M.C.
Menu-Marque, S.A.
author_facet Pizzolon, L.
Santinelli, N.
Marinone, M.C.
Menu-Marque, S.A.
author_sort Pizzolon, L.
title Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
title_short Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
title_full Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
title_fullStr Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
title_full_unstemmed Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
title_sort plankton and hydrochemistry of lake futalaufquen (patagonia, argentina) during the growing season
url http://hdl.handle.net/20.500.12110/paper_00188158_v316_n1_p63_Pizzolon
work_keys_str_mv AT pizzolonl planktonandhydrochemistryoflakefutalaufquenpatagoniaargentinaduringthegrowingseason
AT santinellin planktonandhydrochemistryoflakefutalaufquenpatagoniaargentinaduringthegrowingseason
AT marinonemc planktonandhydrochemistryoflakefutalaufquenpatagoniaargentinaduringthegrowingseason
AT menumarquesa planktonandhydrochemistryoflakefutalaufquenpatagoniaargentinaduringthegrowingseason
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