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Estructura de la comunidad de peces de la marisma del Guadalquivir

Authors: Hernando Casal, José Antonio;

Estructura de la comunidad de peces de la marisma del Guadalquivir

Abstract

Durante los años 1975 y 1976 se estudio la comunidad de peces de la marisma del Guadalquivir en la que determinamos tres grandes aéreas: Doñana-marisma los palacios-santa olalla y salinas de acuerdo con sus características fisicoquímicas. Estas aéreas influenciadas por las estacionalidad se separan también por las especies que componen sus biocenosis sin diferenciación cualitativa en la evolución estacional sin embargo son claras las variaciones estacionales en el número de individuos colectados en la primavera se produce un aumento que continua hasta el verano donde adquiere el máximo para después decrecer hasta llegar al mismo en el invierno. En doña hemos catalogado 7 especies 14 en los palacios y 16 en las salinas. Del estudio de la alimentación de 18 de las 23 especies de la comunidad se han separado 4 grandes grupos o gremios tróficos; herbívoros omnivor pequeños carnívoros y grandes predadores determinándose las causas fundamentales que inducen estas relaciones tróficas en cada una de los grandes aéreas netamente influenciadas por la fuerte seguía que altero los ciclos de abundancia-escasez de agua.

Country
Spain
Related Organizations
Keywords

Ecología animal, Zoología, Ictiología, Ciencias de la vida

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green