Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)

The diet and trophic relationships between the macroinvertebrates Phyllogomphoides joaquini Rodrigues Capítulo, 1992 and Coenagrionidae (Odonata), Chironomidae (Diptera), Diplodon delodontus (Lamarck, 1919) (Bivalvia: Hyriidae), and Pomacea canaliculata (Lamarck, 1822) (Gastropoda: Ampulariidae) and...

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Detalles Bibliográficos
Autores principales:	López van Oosterom, María Vanesa, Ocón, Carolina, Brancolini, Florencia, Maroñas, Miriam E., Sendra, Eduardo Daniel, Rodrigues Capítulo, Alberto
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2013
Materias:	Zoología Diet Stable isotope Temperate plain streams Dieta Isótopos estables arroyo templado de llanura
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/84979
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-84979
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Zoología Diet Stable isotope Temperate plain streams Dieta Isótopos estables arroyo templado de llanura
spellingShingle	Zoología Diet Stable isotope Temperate plain streams Dieta Isótopos estables arroyo templado de llanura López van Oosterom, María Vanesa Ocón, Carolina Brancolini, Florencia Maroñas, Miriam E. Sendra, Eduardo Daniel Rodrigues Capítulo, Alberto Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
topic_facet	Zoología Diet Stable isotope Temperate plain streams Dieta Isótopos estables arroyo templado de llanura
description	The diet and trophic relationships between the macroinvertebrates Phyllogomphoides joaquini Rodrigues Capítulo, 1992 and Coenagrionidae (Odonata), Chironomidae (Diptera), Diplodon delodontus (Lamarck, 1919) (Bivalvia: Hyriidae), and Pomacea canaliculata (Lamarck, 1822) (Gastropoda: Ampulariidae) and the fishes Pimelodella laticeps Eigenmann, 1917 (Heptapteridae) and Bryconamericus iheringii (Boulenger, 1887) (Characidae) in a temperate lowland lotic system in Argentina were assessed on the basis of gut contents and stable-isotope analyses. The feeding strategies were analyzed by the Amundsen method. Relative food items contribution for the taxa studied indicated a generalist-type trophic strategy. In macroinvertebrates, in general, the values of stable isotope confirmed the result of the analysis of gut contents. With the fish, stable-isotope analysis demonstrated that both species are predators, although B. iheringii exhibited a more omnivorous behaviour. These feeding studies allowed us to determine the trophic relationships among taxa studied. Detritus and diatoms were a principal source of food for all the macroinvertebrates studied. In La Choza stream the particulate organic matter is a major no limited food resource, has a significant influence upon the community.
format	Articulo Articulo
author	López van Oosterom, María Vanesa Ocón, Carolina Brancolini, Florencia Maroñas, Miriam E. Sendra, Eduardo Daniel Rodrigues Capítulo, Alberto
author_facet	López van Oosterom, María Vanesa Ocón, Carolina Brancolini, Florencia Maroñas, Miriam E. Sendra, Eduardo Daniel Rodrigues Capítulo, Alberto
author_sort	López van Oosterom, María Vanesa
title	Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
title_short	Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
title_full	Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
title_fullStr	Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
title_full_unstemmed	Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
title_sort	trophic relationships between macroinvertebrates and fish in a pampean lowland stream (argentina)
publishDate	2013
url	http://sedici.unlp.edu.ar/handle/10915/84979
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Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)

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