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Abstract:

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.

Registro:

Documento: Artículo
Título:Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season
Autor:Pizzolon, L.; Santinelli, N.; Marinone, M.C.; Menu-Marque, S.A.
Filiación:Laboratorio de Ecología Acuática, Universidad Nacional de la Patagonia, Esquel, Chubut, 9200, Argentina
Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia, Trelew, Chubut, 9100, Argentina
Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, 1428, Argentina
Palabras clave:nitrogen limitation; oligotrophy; Patagonia; phytoplankton; spatial heterogeneity; zooplancton; diatom; hydrochemistry; nitrogen; oligotrophic lake; phytoplankton; population density; water chemistry; zooplankton; Argentina, Patagonia, Lake Futalaufquen; Boeckellidae
Año:1995
Volumen:316
Número:1
Página de inicio:63
Página de fin:73
DOI: http://dx.doi.org/10.1007/BF00019376
Título revista:Hydrobiologia
Título revista abreviado:Hydrobiologia
ISSN:00188158
CODEN:HYDRB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v316_n1_p63_Pizzolon

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Citas:

---------- APA ----------
Pizzolon, L., Santinelli, N., Marinone, M.C. & Menu-Marque, S.A. (1995) . Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season. Hydrobiologia, 316(1), 63-73.
http://dx.doi.org/10.1007/BF00019376
---------- CHICAGO ----------
Pizzolon, L., Santinelli, N., Marinone, M.C., Menu-Marque, S.A. "Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season" . Hydrobiologia 316, no. 1 (1995) : 63-73.
http://dx.doi.org/10.1007/BF00019376
---------- MLA ----------
Pizzolon, L., Santinelli, N., Marinone, M.C., Menu-Marque, S.A. "Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season" . Hydrobiologia, vol. 316, no. 1, 1995, pp. 63-73.
http://dx.doi.org/10.1007/BF00019376
---------- VANCOUVER ----------
Pizzolon, L., Santinelli, N., Marinone, M.C., Menu-Marque, S.A. Plankton and hydrochemistry of Lake Futalaufquen (Patagonia, Argentina) during the growing season. Hydrobiologia. 1995;316(1):63-73.
http://dx.doi.org/10.1007/BF00019376