Phytoplankton of the Paraguay and Bermejo rivers

This article deals with the phytoplankton of the Paraguay and Bermejo rivers, with emphasis on the spatial and temporal patterns of its composition, density, biomass, diversity and community size structure. The phytoplankton of the Paraguay River is characterized by the dominance of small Chlo...

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Autores principales: Zalocar de Domitrovic, Yolanda, Devercelli, Melina, Forastier, Marina Elizabet
Formato: Artículo
Lenguaje:Inglés
Publicado: E. Schweizerbartsche Verlags 2021
Materias:
Phytoplankton
Diversity
Functional group
Paraguay
Bermejo
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/30286
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-30286
record_format dspace
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Phytoplankton
Diversity
Functional group
Paraguay
Bermejo
spellingShingle Phytoplankton
Diversity
Functional group
Paraguay
Bermejo
Zalocar de Domitrovic, Yolanda
Devercelli, Melina
Forastier, Marina Elizabet
Phytoplankton of the Paraguay and Bermejo rivers
topic_facet Phytoplankton
Diversity
Functional group
Paraguay
Bermejo
description This article deals with the phytoplankton of the Paraguay and Bermejo rivers, with emphasis on the spatial and temporal patterns of its composition, density, biomass, diversity and community size structure. The phytoplankton of the Paraguay River is characterized by the dominance of small Chlorophyceae and Cryptophyceae, with a gradual increase in Bacillariophyceae towards its confl uence with the Paraná River. In the northern stretch, where the Pantanal drains, Bacillariophyceae exceptionally share the dominance with Chlorophyceae and Euglenophyceae. Small Chlorophyceae prevail in transparent waters, whereas Aulacoseira (A. granulata and A. herzogii) predominates throughout the main channel, in relation with a higher turbulence and lower water transparency. Density, biomass, diversity and species richness present an inverse relationship with the hydrometric level. Such variables are positively correlated with water temperature, and present a decrease from north to south in relation to increased suspended solids and conductivity and decreased water transparency. The Bermejo River, which is a main tributary of the Paraguay River in its lower section, is the main determinant of the sharp decrease in the main variables of the phytoplankton in the low Paraguay.
format Artículo
author Zalocar de Domitrovic, Yolanda
Devercelli, Melina
Forastier, Marina Elizabet
author_facet Zalocar de Domitrovic, Yolanda
Devercelli, Melina
Forastier, Marina Elizabet
author_sort Zalocar de Domitrovic, Yolanda
title Phytoplankton of the Paraguay and Bermejo rivers
title_short Phytoplankton of the Paraguay and Bermejo rivers
title_full Phytoplankton of the Paraguay and Bermejo rivers
title_fullStr Phytoplankton of the Paraguay and Bermejo rivers
title_full_unstemmed Phytoplankton of the Paraguay and Bermejo rivers
title_sort phytoplankton of the paraguay and bermejo rivers
publisher E. Schweizerbartsche Verlags
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/30286
work_keys_str_mv AT zalocardedomitrovicyolanda phytoplanktonoftheparaguayandbermejorivers
AT devercellimelina phytoplanktonoftheparaguayandbermejorivers
AT forastiermarinaelizabet phytoplanktonoftheparaguayandbermejorivers
bdutipo_str Repositorios
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