Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary

The aim of this study was to analyze the density, diversity, biomass and assemblage composition of the phytoplankton in relation to environmental conditions (physical, chemical, hydrological and meteorological variables), measured under the different scenarios caused by the ENSO phenomenon in the pe...

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Autores principales: Sathicq, María Belén, Bauer, Delia Elena, Gómez, Nora
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Zoología
Ciencias Naturales
Phytoplankton
Structural responses
El Niño Southern Oscillation phenomenon
Freshwater tidal zone
Río de la Plata estuary
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/151797
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-151797
record_format dspace
spelling I19-R120-10915-1517972023-04-21T04:07:43Z http://sedici.unlp.edu.ar/handle/10915/151797 issn:1879-3363 Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary Sathicq, María Belén Bauer, Delia Elena Gómez, Nora 2015-09 2023-04-19T17:27:32Z en Zoología Ciencias Naturales Phytoplankton Structural responses El Niño Southern Oscillation phenomenon Freshwater tidal zone Río de la Plata estuary The aim of this study was to analyze the density, diversity, biomass and assemblage composition of the phytoplankton in relation to environmental conditions (physical, chemical, hydrological and meteorological variables), measured under the different scenarios caused by the ENSO phenomenon in the period between 2005 and 2012, in six sampling sites in the tidal freshwater zone of the Río de la Plata estuary, covering almost 100 km of coastline. The results revealed changes in the structure of the phytoplankton, such as a significant reduction of diversity, and decreases in biomass and phytoplankton density, particularly during El Niño phases. Cyanobacteria were more abundant in the neutral periods, Chlorophyceae dominated La Niña phase while Bacyllariophyceae dominated El Niño. However, no complete replacement of species between cycles was observed. The results obtained were highly variable due to the inherent natural variability of the Río de la Plata, emphasized by the anthropogenic impact in this area. Instituto de Limnología "Dr. Raúl A. Ringuelet" Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Ciencias Naturales
Phytoplankton
Structural responses
El Niño Southern Oscillation phenomenon
Freshwater tidal zone
Río de la Plata estuary
spellingShingle Zoología
Ciencias Naturales
Phytoplankton
Structural responses
El Niño Southern Oscillation phenomenon
Freshwater tidal zone
Río de la Plata estuary
Sathicq, María Belén
Bauer, Delia Elena
Gómez, Nora
Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
topic_facet Zoología
Ciencias Naturales
Phytoplankton
Structural responses
El Niño Southern Oscillation phenomenon
Freshwater tidal zone
Río de la Plata estuary
description The aim of this study was to analyze the density, diversity, biomass and assemblage composition of the phytoplankton in relation to environmental conditions (physical, chemical, hydrological and meteorological variables), measured under the different scenarios caused by the ENSO phenomenon in the period between 2005 and 2012, in six sampling sites in the tidal freshwater zone of the Río de la Plata estuary, covering almost 100 km of coastline. The results revealed changes in the structure of the phytoplankton, such as a significant reduction of diversity, and decreases in biomass and phytoplankton density, particularly during El Niño phases. Cyanobacteria were more abundant in the neutral periods, Chlorophyceae dominated La Niña phase while Bacyllariophyceae dominated El Niño. However, no complete replacement of species between cycles was observed. The results obtained were highly variable due to the inherent natural variability of the Río de la Plata, emphasized by the anthropogenic impact in this area.
format Articulo
Articulo
author Sathicq, María Belén
Bauer, Delia Elena
Gómez, Nora
author_facet Sathicq, María Belén
Bauer, Delia Elena
Gómez, Nora
author_sort Sathicq, María Belén
title Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
title_short Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
title_full Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
title_fullStr Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
title_full_unstemmed Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
title_sort influence of el niño southern oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of south america: río de la plata estuary
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/151797
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