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Artículo

Benthic invertebrate assemblage in Samborombón River (Argentina, S. America), a brackish plain river

Spaccesi, Fernando GustavoIcon ; Rodrigues Capitulo, AlbertoIcon
Fecha de publicación: 14/09/2008
Editorial: Springer
Revista: Aquatic Ecology
ISSN: 1386-2588
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Bioquímica y Biología Molecular

Resumen

The spatial and temporal differences in the structure and composition of benthic invertebrates were studied at three sites of the Samborombón River, which is an important tributary of the Río de la Plata Estuary (Argentina), having a low slope and brackish drainage. Biological samples were taken during each season. Physico-chemical variables were measured to determine their association in the benthic fauna distribution. Site 1, in the headstream, was characterized by freshwater Pampean organisms; site 2 showed the highest density, taxa diversity, and richness; brackish species, e.g., Laeonereis culveri, were found here. Site 3, close to the Samborombón Bay, was characterized by an unstable taxonomic composition that is strongly influenced by the estuary. The lowest density and taxonomic diversity of organisms were registered and distinguished by estuarine species. The multivariate method (redundancy analysis) showed the benthic groups having an important spatial variability, superimposed on the temporal variability, associated with the salinity gradient of the river.
Palabras clave: Diversity , Infaunal Community , Redundancy Analysis , Salinity Gradient
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/25549
URL: https://link.springer.com/article/10.1007%2Fs10452-008-9212-9
DOI: http://dx.doi.org/ 10.1007/s10452-008-9212-9
Colecciones
Articulos(ILPLA)
Articulos de INST.DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Citación
Spaccesi, Fernando Gustavo; Rodrigues Capitulo, Alberto; Benthic invertebrate assemblage in Samborombón River (Argentina, S. America), a brackish plain river; Springer; Aquatic Ecology; 43; 4; 14-9-2008; 1011-1022
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