Artículo
Seasonal and spatial distribution of the microbenthic communities of the Rio de la Plata estuary (Argentina) and possible environmental controls
Fecha de publicación:
06/2009
Editorial:
Elsevier
Revista:
Journal Marine Pollution Bulletin
ISSN:
0025-326x
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The relationship between microbenthic communities, the habitat characteristics, and physical and chemical gradients was studied in the Rio de la Plata estuary. Five replicates of the surface layer were collected seasonally, in 10 sampling sites influenced by different land uses. The distribution of microbenthic communities was governed by two gradients, the first one determined by anthropic factors, related to pollution, and the second one to conductivity and turbidity. The higher densities of producers were observed in sites characterized by fine sediments. During winter, spring, and summer cyanophytes were abundant, while in autumn the diatoms, particularly birraphideans, dominated. The ciliates were the most abundant group among consumers, particularly in winter, and their spatial distribution was influenced by the turbidity. The whole study area has an eutrophic condition. Turbidity and the enrichment with nutrients and organic matter explained 50% of the variability in the species’ distribution.
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Articulos(ILPLA)
Articulos de INST.DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Articulos de INST.DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Citación
Gomez, Nora; Licursi, Magdalena; Cochero, Joaquin; Seasonal and spatial distribution of the microbenthic communities of the Rio de la
Plata estuary (Argentina) and possible environmental controls; Elsevier; Journal Marine Pollution Bulletin; 58; 6; 6-2009; 878-887
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