Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir

We determined the spatial and temporal variation of phytoplankton biomass and diversity in 10 fortnightly sampling journeys verifying five sampling sites in El Peñol-Guatapé reservoir located in Antioquia, Colombia. <i>In situ</i> and <i>ex situ</i> physical and chemical vari...

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Autores principales: Gil Guarín, Isabel Cristina, Villabona González, Silvia Lucía, Parra García, Edison, Echenique, Ricardo Omar
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Ciencias Naturales
Temporal and spatial variation
Physical chemical variables
Phytoplankton
Structure
Reservoir
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/122187
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-122187
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Temporal and spatial variation
Physical chemical variables
Phytoplankton
Structure
Reservoir
spellingShingle Ciencias Naturales
Temporal and spatial variation
Physical chemical variables
Phytoplankton
Structure
Reservoir
Gil Guarín, Isabel Cristina
Villabona González, Silvia Lucía
Parra García, Edison
Echenique, Ricardo Omar
Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
topic_facet Ciencias Naturales
Temporal and spatial variation
Physical chemical variables
Phytoplankton
Structure
Reservoir
description We determined the spatial and temporal variation of phytoplankton biomass and diversity in 10 fortnightly sampling journeys verifying five sampling sites in El Peñol-Guatapé reservoir located in Antioquia, Colombia. <i>In situ</i> and <i>ex situ</i> physical and chemical variables were measured and phytoplankton samples were taken. Richness was dominated by Chlorophyta and biomass by Dinophyta. This variable was higher in the transition zone while in the riverine zone it showed average values, the lowest were registered in the lacustrine zone. Diversity was lower in the riverine zone, but it increased considerably in the transition zone and in the lacustrine zone where it showed similar values. At the vertical scale, biomass and diversity did not vary widely. Biomass showed a differential response to the effect of precipitation changes and water levels in the reservoir zones. Due to the low variability in environmental conditions, diversity was homogeneous time-wise. These results suggest that factors related to the hydrodynamic such as precipitation and water level resulting from the dam operation and inflow have a slight influence on the temporal variations of phytoplankton biomass and structure. There was a direct relationship between these attributes and physical variables such as turbidity and nutrients concentration at spatial scale while at the vertical scale, mixing patterns and the influence of the wind explained the absence of the vertical gradient of biomass and phytoplankton structure.
format Articulo
Articulo
author Gil Guarín, Isabel Cristina
Villabona González, Silvia Lucía
Parra García, Edison
Echenique, Ricardo Omar
author_facet Gil Guarín, Isabel Cristina
Villabona González, Silvia Lucía
Parra García, Edison
Echenique, Ricardo Omar
author_sort Gil Guarín, Isabel Cristina
title Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
title_short Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
title_full Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
title_fullStr Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
title_full_unstemmed Environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
title_sort environmental factors driving phytoplankton biomass and diversity in a tropical reservoir
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/122187
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