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	Provedor de dados Biota Neotropica (3) Autor Cabrera,Gabriela Cecilia (3) Echaniz,Santiago Andrés (3) Vignatti,Alicia María (3) Paggi,Susana Beatriz José de (1) Palavra-chave Temporary lakes (2) Argentina (1) Boeckella poopoensis (1) Cladocera (1) Fish predation (1) Halophilic copepods (1) Invasive species (1) Moina macrocopa (1) Saline lakes (1) Shallow saline lakes (1) Top down (1) Zooplankton biomass (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2016 (1) 2013 (1) 2012 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Distribution and biological aspects of the introduced speciesMoina macrocopa (Straus, 1820) (Crustacea, Cladocera) in the semi-arid central region of Argentina Biota Neotropica Vignatti,Alicia María; Cabrera,Gabriela Cecilia; Echaniz,Santiago Andrés. Moina macrocopa is common in eutrophic water bodies. Two subspecies have been described: M. macrocopa macrocopa (Straus, 1820), whose original distribution was restricted to the Old World, and M. macrocopa americanaGoulden, 1968, recorded only in North America. In 1994, the species was found in Bolivia, and in 1997 it was found in the northeast of Argentina. As the specimens belonged to M. macrocopa macrocopa in both cases, the authors suggested that it may have been introduced from the Old World by anthropogenic means. The aim of this study was to assess the distribution of M. macrocopa in La Pampa (Argentina), and provide information on its population characteristics under natural conditions. The species was recorded in six out of more than 100 water... Tipo: Info:eu-repo/semantics/article Palavras-chave: Argentina; Temporary lakes; Cladocera; Moina macrocopa; Invasive species. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300086 Zooplankton richness, abundance and biomass of two hypertrophic shallow lakes with different salinity in central Argentina Biota Neotropica Echaniz,Santiago Andrés; Vignatti,Alicia María; Cabrera,Gabriela Cecilia; Paggi,Susana Beatriz José de. The zooplankton of lakes is controlled by biological and physico-chemical parameters. Among the former, predation by fish can determine the replacement of large-sized species by small-sized ones and among the latter, salinity exerts negative effects on richness and abundance. Since it has been suggested that saline lakes without fishes have higher zooplankton biomass than low salinity ones, the aim of this study was to determine the richness, abundance and biomass of zooplankton in two lakes with different salinity and test the hypothesis that in the presence of zooplanktivorous fishes and at equal concentrations of nutrients and chlorophyll-a, saline lakes have higher biomass than those with low salinity. The study was conducted in two shallow lakes of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Shallow saline lakes; Zooplankton biomass; Fish predation; Top down. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200005 Biology of Boeckella poopoensis Marsh, 1906 (Copepoda, Calanoida) in natural conditions in temporary saline lakes of the central Argentina Biota Neotropica Vignatti,Alicia María; Cabrera,Gabriela Cecilia; Echaniz,Santiago Andrés. Boeckella poopoensis Marsh, 1906 is the dominant copepod in saline lakes from northern Patagonia to southern Peru. It is a tolerant species, which has been registered at salinities between 20 and 90 g.L-1, and is important because it integrates the diet of flamingos and fishes of commercial and sport interest. The aims of this study were to analyze the characteristics of populations of B. poopoensis in the central region of Argentina and to establish their relationships with environmental parameters. Monthly samples during 2007 were taken in four temporary lakes of La Pampa province. Environmental parameters and density, size, biomass, number and size of eggs were determined. The salinity ranged between 13.38 and 32.90 g.L-1. In three lakes that had... Tipo: Info:eu-repo/semantics/article Palavras-chave: Boeckella poopoensis; Halophilic copepods; Saline lakes; Temporary lakes. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200204 Registros recuperados: 3 Primeira ... 1 ... Última

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