Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)

Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)

Sauce Grande shallow lake is located in the Southwest of the Buenos Aires Province, Argentina, with the river Sauce Grande as both affluent and effluent of it. The aim of this work was to evaluate the trophic state and the characteristics of the phytoplankton community of this shallow lake during an annual cycle. Phytoplankton samples were collected monthly and also physico-chemical parameters were measured. The trophic state of the water body was estimated with Carlson Trophic State Index (TSI) based on chlorophyll a concentration. Bacillariophyta was the algal group most widely represented in number of taxa for the entire studied period. In turn, Cyanobacteria was the dominant group with Synechocystis salina Wislouch as the dominant species. Chlorophyll a concentration ranged between 64.6 and 769.4 mg/m3. The total phytoplankton abundance ranged from 1.6×106 to 5.2×106 ind/ml and the biovolume varied from 9.4×107 to 1.4×109 μm³/ml. The chlorophyll a concentration was significantly correlated with phytoplankton abundance but it was not significantly correlated with biovolume. Besides, Carlson’s TSI (Cl a) ranged from 70 to 97. Accordingly, the Sauce Grande shallow lake was classified as hypertrophic for the studied 2012-2013 period, whereas the status of the water body was determined as eutrophic for the autumn of 2010.

Saved in:
Bibliographic Details
Main Authors: Cony, Noelia Leonor, Ferrer, Nora Cristina, Cáceres, Eduardo Jorge
Format: Digital revista
Language:spa
Published: Instituto de Limnología "Raúl A. Ringuelet", Facultad de Ciencias Naturales y Museo (UNLP) 2014
Online Access:https://revistas.unlp.edu.ar/bacuatica/article/view/7625
Tags: Add Tag
No Tags, Be the first to tag this record!
id rev-bacuatica-ar-article-7625
record_format ojs
spelling rev-bacuatica-ar-article-76252021-02-03T15:43:06Z Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina) Cony, Noelia Leonor Ferrer, Nora Cristina Cáceres, Eduardo Jorge Sauce Grande shallow lake Argentina trophic evolution abundance phytoplankton trophic state laguna Sauce Grande Argentina evolución trófica abundancia fitoplancton estado trófico Sauce Grande shallow lake is located in the Southwest of the Buenos Aires Province, Argentina, with the river Sauce Grande as both affluent and effluent of it. The aim of this work was to evaluate the trophic state and the characteristics of the phytoplankton community of this shallow lake during an annual cycle. Phytoplankton samples were collected monthly and also physico-chemical parameters were measured. The trophic state of the water body was estimated with Carlson Trophic State Index (TSI) based on chlorophyll a concentration. Bacillariophyta was the algal group most widely represented in number of taxa for the entire studied period. In turn, Cyanobacteria was the dominant group with Synechocystis salina Wislouch as the dominant species. Chlorophyll a concentration ranged between 64.6 and 769.4 mg/m3. The total phytoplankton abundance ranged from 1.6×106 to 5.2×106 ind/ml and the biovolume varied from 9.4×107 to 1.4×109 μm³/ml. The chlorophyll a concentration was significantly correlated with phytoplankton abundance but it was not significantly correlated with biovolume. Besides, Carlson’s TSI (Cl a) ranged from 70 to 97. Accordingly, the Sauce Grande shallow lake was classified as hypertrophic for the studied 2012-2013 period, whereas the status of the water body was determined as eutrophic for the autumn of 2010. La laguna Sauce Grande está ubicada en el suroeste de la provincia de Buenos Aires, Argentina, con el río Sauce Grande como afluente y efluente de la misma. El objetivo de este trabajo fue evaluar el estado trófico y las características de la comunidad del fitoplancton de esta laguna. Las muestras de fitoplancton se recolectaron mensualmente y también se midieron los parámetros físico-químicos. El estado trófico del cuerpo de agua se estimó con el índice de estado trófico de Carlson (TSI) basado en la concentración de clorofila a. Bacillariophyta fue el grupo de algas más ampliamente representado en número de taxones para todo el período estudiado. A su vez, Cyanobacteria fue el grupo dominante con Synechocystis salina Wislouch como la especie dominante. La concentración de clorofila a osciló entre 64,6 y 769,4 mg/m3. La abundancia total de fitoplancton varió de 1,6 × 106 a 5,2 × 106 ind /ml y el biovolumen varió de 9,4 × 107 a 1,4 × 109 μm³/ml. La concentración de clorofila a se correlacionó significativamente con la abundancia de fitoplancton, pero no se correlacionó significativamente con el biovolume. Además, el TSI (Cl a) de Carlson osciló entre 70 y 97. En consecuencia, el lago somero Sauce Grande se clasificó como hipertrófico para el período estudiado 2012-2013, mientras que el estado del cuerpo de agua se determinó como eutrófico para el otoño de 2010. Instituto de Limnología "Raúl A. Ringuelet", Facultad de Ciencias Naturales y Museo (UNLP) 2014-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unlp.edu.ar/bacuatica/article/view/7625 Biología Acuática; Núm. 30 (2014): Trabajos completos del VII Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 79-91 Biología Acuática; No. 30 (2014): Trabajos completos del VII Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 79-91 Biología Acuática; No. 30 (2014): Trabajos completos del VII Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 79-91 Biología Acuática; n. 30 (2014): Trabajos completos del VII Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 79-91 1668-4869 spa https://revistas.unlp.edu.ar/bacuatica/article/view/7625/6666
institution UNLP AR
collection OJS
country Argentina
countrycode AR
component Revista
access En linea
databasecode rev-bacuatica-ar
tag revista
region America del Sur
libraryname Biblioteca de la Facultad de Ciencias Naturales y Museo de la UNLP Argentina
language spa
format Digital
author Cony, Noelia Leonor
Ferrer, Nora Cristina
Cáceres, Eduardo Jorge
spellingShingle Cony, Noelia Leonor
Ferrer, Nora Cristina
Cáceres, Eduardo Jorge
Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
author_facet Cony, Noelia Leonor
Ferrer, Nora Cristina
Cáceres, Eduardo Jorge
author_sort Cony, Noelia Leonor
title Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
title_short Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
title_full Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
title_fullStr Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
title_full_unstemmed Evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna Sauce Grande (Pcia. de Buenos Aires, Argentina)
title_sort evolución del estado trófico y estructura del fitoplancton de un lago somero de la región pampeana: laguna sauce grande (pcia. de buenos aires, argentina)
description Sauce Grande shallow lake is located in the Southwest of the Buenos Aires Province, Argentina, with the river Sauce Grande as both affluent and effluent of it. The aim of this work was to evaluate the trophic state and the characteristics of the phytoplankton community of this shallow lake during an annual cycle. Phytoplankton samples were collected monthly and also physico-chemical parameters were measured. The trophic state of the water body was estimated with Carlson Trophic State Index (TSI) based on chlorophyll a concentration. Bacillariophyta was the algal group most widely represented in number of taxa for the entire studied period. In turn, Cyanobacteria was the dominant group with Synechocystis salina Wislouch as the dominant species. Chlorophyll a concentration ranged between 64.6 and 769.4 mg/m3. The total phytoplankton abundance ranged from 1.6×106 to 5.2×106 ind/ml and the biovolume varied from 9.4×107 to 1.4×109 μm³/ml. The chlorophyll a concentration was significantly correlated with phytoplankton abundance but it was not significantly correlated with biovolume. Besides, Carlson’s TSI (Cl a) ranged from 70 to 97. Accordingly, the Sauce Grande shallow lake was classified as hypertrophic for the studied 2012-2013 period, whereas the status of the water body was determined as eutrophic for the autumn of 2010.
publisher Instituto de Limnología "Raúl A. Ringuelet", Facultad de Ciencias Naturales y Museo (UNLP)
publishDate 2014
url https://revistas.unlp.edu.ar/bacuatica/article/view/7625
work_keys_str_mv AT conynoelialeonor evoluciondelestadotroficoyestructuradelfitoplanctondeunlagosomerodelaregionpampeanalagunasaucegrandepciadebuenosairesargentina
AT ferrernoracristina evoluciondelestadotroficoyestructuradelfitoplanctondeunlagosomerodelaregionpampeanalagunasaucegrandepciadebuenosairesargentina
AT cacereseduardojorge evoluciondelestadotroficoyestructuradelfitoplanctondeunlagosomerodelaregionpampeanalagunasaucegrandepciadebuenosairesargentina
_version_ 1755912610670182400

Similar Items