2008
DOI: 10.1590/s1676-06032008000400005
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El zooplancton de un lago somero hipereutrófico de la región central de Argentina: cambios después de una década

Abstract: La ecología de los cuerpos de agua está influenciada por los aportes de nutrientes desde la cuenca. Los ambientes lénticos de escasa profundidad generalmente presentan elevados niveles de eutrofia, lo que permite alojar una fauna zooplanctónica altamente productiva. Según el modelo de los estados alternativos de los lagos someros, el zooplancton de estos ambientes se caracteriza por una composición taxonómica, un espectro de tallas y por consiguiente una biomasa que dependen de la fauna íctica presente. A pesa… Show more

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Cited by 20 publications
(25 citation statements)
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“…The zooplanktonic association recorded in El Guanaco was similar to that in other permanent environments of low salinity of the region (Echaniz & Vignatti 2001, Vignatti et al 2007, Echaniz et al 2008, because of the presence of the cladocerans Daphnia spinulata, Moina micrura and M. wierzejskii, the cyclopoid Metacyclops mendocinus and Microcyclops anceps (Richard, 1897) (Cyclopoida, Cycloipidae), and the rotifers Brachionus angularis, B. pterodinoides (Rousselet, 1913) (Ploima, Brachionidae) and B. caudatus Barrois & Daday, 1894 (Ploima, Brachionidae). However, the diversity found in El Guanaco was higher probably due to the environmental heterogeneity caused by the development of E. macrostachya plants, which generated a larger diversity of habitats (Kalff 2002).…”
Section: Discussionsupporting
confidence: 80%
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“…The zooplanktonic association recorded in El Guanaco was similar to that in other permanent environments of low salinity of the region (Echaniz & Vignatti 2001, Vignatti et al 2007, Echaniz et al 2008, because of the presence of the cladocerans Daphnia spinulata, Moina micrura and M. wierzejskii, the cyclopoid Metacyclops mendocinus and Microcyclops anceps (Richard, 1897) (Cyclopoida, Cycloipidae), and the rotifers Brachionus angularis, B. pterodinoides (Rousselet, 1913) (Ploima, Brachionidae) and B. caudatus Barrois & Daday, 1894 (Ploima, Brachionidae). However, the diversity found in El Guanaco was higher probably due to the environmental heterogeneity caused by the development of E. macrostachya plants, which generated a larger diversity of habitats (Kalff 2002).…”
Section: Discussionsupporting
confidence: 80%
“…The values recorded are more similar to those of some permanent shallow lakes that receive pluvial contributions from cities or to those of water springs in dunal landscapes (Vignatti et al 2007, Echaniz et al 2008). …”
Section: Discussionsupporting
confidence: 62%
“…The higher zooplankton richness of Don Tomás, typical of subsaline environments, had been previously reported (Echaniz et al 2008). In contrast, the lower number of taxa recorded in Bajo de Giuliani showed the modulating effect of the higher salt concentration, which means it can be inhabited by a smaller number of halotolerant species (Herbst 2001, Ivanova & Kazantseva 2006.…”
Section: Discussionmentioning
confidence: 53%
“…These species are more commonly found in other environments of low salinity of La Pampa (Vignatti et al 2007, Echaniz et al 2008. The species that prevailed in Bajo de Giuliani were the halotolerants Cletocamptus deitersi, M. mendocinus and B. poopoensis (Menu-Marque & Locascio de Mitrovich 1998, Echaniz et al 2006, Vignatti et al 2007).…”
Section: Discussionmentioning
confidence: 99%
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