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      Cyclopidae (Crustacea, Copepoda) from the upper Paraná River floodplain, Brazil Translated title: Cyclopidae (Crustacea, Copepoda) da planície de inundação do alto rio Paraná, Brasil

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          Abstract

          Cyclopid copepods from samples of fauna associated with aquatic macrophytes and plancton obtained in lotic and lentic environments were obtained from the upper Paraná River floodplain (in the states of Paraná and Mato Grosso do Sul, Brazil). Macrophytes were collected in homogeneous stands and washed. Plankton samples, taken from the water column surface and bottom, were obtained using a motor pump, with a 70 mum mesh plankton net for filtration. Twelve taxa of Cyclopidae were identified. Among them, Macrocyclops albidus albidus, Paracyclops chiltoni, Ectocyclops rubescens, Homocyclops ater, Eucyclops solitarius, Mesocyclops longisetus curvatus, Mesocyclops ogunnus, and Microcyclops finitimus were new finds for this floodplain. Eight species were recorded exclusively in aquatic macrophyte samples. Among these species, M. albidus albidus and M. finitimus presented greatest abundances. Only four species were recorded in plankton samples, and Thermocyclops minutus and Thermocyclops decipiens are limited to this type of habitat. Among these four species, T. minutus is the most abundant, especially in lentic habitats.

          Translated abstract

          Foram obtidos copépodes cyclopídeos de amostras de fauna associadas a macrófitas aquáticas e plâncton de ambientes lóticos e lênticos da planície de inundação do alto rio Paraná (nos Estados do Paraná e Mato Grosso do Sul). As amostras foram coletadas em bancos homogêneos e lavadas. As amostras de plâncton, tomadas à superfície e fundo da coluna de água, foram obtidas com o auxílio de uma motobomba, utilizando-se uma rede de plâncton de abertura de malha de 70 mim para filtração. Doze táxons de Cyclopidae foram identificados. Entre eles, Macrocyclops albidus albidus, Paracyclops chiltoni, Ectocyclops rubescens, Homocyclops ater, Eucyclops solitarius, Mesocyclops longisetus curvatus, Mesocyclops ogunnus e Microcyclops finitimus representam novos registros para essa planície. Oito espécies foram registradas exclusivamente em amostras de macrófitas aquáticas. Entre essas, M. albidus albidus e M. finitimus são as mais abundantes. Somente quatro espécies foram registradas em amostras de plâncton, e Thermocyclops minutus e Thermocyclops decipiens são exclusivas para esse tipo de habitat. Dessas quatro espécies, T. minutus é a mais abundante, especialmente em ambientes lênticos.

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          Chave de identificação e lista de referências bibliográficas para espécies continentais sul-americanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda)

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            Some Crustacea Copepoda from Venezuela

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              New morphological characters useful for the taxonomy of the genus Microcyclops (Copepoda, Cyclopoida)

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                bjb
                Brazilian Journal of Biology
                Braz. J. Biol.
                Instituto Internacional de Ecologia (São Carlos )
                1678-4375
                February 2002
                : 62
                : 1
                : 125-133
                Affiliations
                [1 ] Universidade Estadual de Maringá Brazil
                Article
                S1519-69842002000100015
                10.1590/S1519-69842002000100015
                aaa4cdd6-7ee1-41f6-ba9b-2542aabba9f8

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1519-6984&lng=en
                Categories
                BIOLOGY

                General life sciences
                Cyclopidae,taxonomy,phytophyle fauna,zooplankton,Paraná River,taxonomia,fauna fitófila,zooplâncton,rio Paraná

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