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      Benthic macroinvertebrate community in the Sinos river drainage basin, Rio Grande do Sul, Brazil Translated title: A comunidade de macroinvertebrados bentônicos da bacia hidrográfica do rio dos Sinos, Rio Grande do Sul, Brasil

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          Abstract

          Abstract Aquatic macroinvertebrate fauna is a relevant component of limnic continental aquatic ecosystems, playing an important role in several processes with relevant biocomplexity. The present study characterized the benthic macroinvertebrate fauna found in three hydric bodies in the Sinos river drainage basin regarding community structure. Sample was collected from January to December 2013 in three locations in the basin: the city of Caraá (29 °45’45.5”S/50°19’37.3”W), the city of Rolante (29°38’34.4”S/50°32’33.2”W) and the city of Igrejinha (29°36’10.84”S/50°48’49.3”W). Abiotic components (pH, dissolved oxygen and temperature) were registered and collected samples were identified up to family type. Average annual pH, dissolved oxygen and temperature were similar in all locations. A total of 26,170 samples were collected. Class Insecta (Arthropods) represented 85.5% of total sample. Platyhelmintes, Mollusca and Annelida samples were also registered. A total of 57 families were identified for the drainage basin and estimators (Chao-1, Chao-2 and jackknife 2) estimated richness varying from 60 to 72 families.

          Translated abstract

          Resumo A fauna de macroinvertebrados aquáticos é um relevante componente dos ecossistemas aquáticos límnicos continentais, atuando em vários processos de importante biocomplexidade. O presente estudo caracterizou a fauna de macroinvertebrados bentônicos em três corpos hídricos da Bacia Hidrográfica do Rio dos Sinos, em relação a estrutura da comunidade. Amostragens foram realizadas de janeiro a dezembro de 2013 em três locais na bacia: Município de Caraá (29°45’45,5”S/50°19’37,3”W), Município de Rolante(29°38’34,4”S/50°32’33,2”W) e Município de Igrejinha(29°36’10,84”S/50°48’49,3”W). Variáveis abióticas (pH, oxigênio dissolvido e temperatura) foram registradas e os exemplares coletados identificados até família. As médias anuais de pH, oxigênio dissolvido e temperatura foram similares em todos os pontos. Um total de 26.170 exemplares foi amostrado. A Classe Insecta (Arthropoda) representou 85,5% do total. Platyhelmintes, Mollusca e Annelida também foram registrados. Foram determinadas 57 famílias para a bacia hidrográfica e os estimadores (Chao-1, Chao-2 e jackknife 2) projetaram uma riqueza variando de 60 a 72.

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          Most cited references43

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          Fundamentos de limnologia

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            BIOESTAT – Aplicações estatísticas nas áreas das ciências bio-médicas

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              Instituto Brasileiro de Geografia e Estatística

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                bjb
                Brazilian Journal of Biology
                Braz. J. Biol.
                Instituto Internacional de Ecologia
                1678-4375
                December 2016
                : 76
                : 4
                : 942-950
                Affiliations
                [1 ] Universidade FEEVALE Brazil
                [2 ] Instituto Internacional de Ecologia Brazil
                Article
                S1519-69842016000400942
                10.1590/1519-6984.04815
                348e7a5c-77af-4a4a-842f-d063c56af381

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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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
                invertebrados aquáticos,estrutura da comunidade,índices de diversidade,aquatic invertebrates,community structure,diversity indices

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