Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water

Monthly zooplankton samples were taken from a shallow Argentinean lake in 1997- 1998, and spatiotemporal changes in rotifers in the water column were examined. The most abundant and frequent species were Brachionus calyciflorus, B. caudatus, B. havanaensis, Keratella tropica, Filinia longiseta, and...

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Detalles Bibliográficos
Autores principales: Claps, María Cristina, Gabellone, Néstor Adrián, Benítez, Hernán Hugo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Naturales
Rotifers
Vertical profile
Eutrophic shallow lake
Argentina
Clear and turbid water
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/119655
http://zoolstud.sinica.edu.tw/Journals/50.4/454.html
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-119655
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
Rotifers
Vertical profile
Eutrophic shallow lake
Argentina
Clear and turbid water
spellingShingle Ciencias Naturales
Rotifers
Vertical profile
Eutrophic shallow lake
Argentina
Clear and turbid water
Claps, María Cristina
Gabellone, Néstor Adrián
Benítez, Hernán Hugo
Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
topic_facet Ciencias Naturales
Rotifers
Vertical profile
Eutrophic shallow lake
Argentina
Clear and turbid water
description Monthly zooplankton samples were taken from a shallow Argentinean lake in 1997- 1998, and spatiotemporal changes in rotifers in the water column were examined. The most abundant and frequent species were Brachionus calyciflorus, B. caudatus, B. havanaensis, Keratella tropica, Filinia longiseta, and Polyarthra vulgaris. These perennial species are considered to be common in eutrophic waters, are eurytopic, and are widely distributed. The phytoplankton composition, competition for food with other grazers, and predation pressure, plus the occurrence of different periods including a turbid phase, a phase with coverage of submerged macrophytes (Potamogeton pectinatus), and a flooding phase, defined the annual planktonic rotifer succession in the lake. Small-scale vertical distributions of rotifers in this homothermal lake were related to both biotic and abiotic forces. The presence of macrophytes favored an increase in planktonic-rotifer densities along with a specific richness associated with the possibility of refuge, the incorporation of littoral species, and food diversification.
format Articulo
Articulo
author Claps, María Cristina
Gabellone, Néstor Adrián
Benítez, Hernán Hugo
author_facet Claps, María Cristina
Gabellone, Néstor Adrián
Benítez, Hernán Hugo
author_sort Claps, María Cristina
title Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
title_short Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
title_full Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
title_fullStr Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
title_full_unstemmed Seasonal Changes in the Vertical Distribution of Rotifers in a Eutrophic Shallow Lake with Contrasting States of Clear and Turbid Water
title_sort seasonal changes in the vertical distribution of rotifers in a eutrophic shallow lake with contrasting states of clear and turbid water
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/119655
http://zoolstud.sinica.edu.tw/Journals/50.4/454.html
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