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      Caloric variability of Corbicula fluminea (Mollusca, Bivalvia) in Rosana Reservoir, Brazil

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          Abstract

          The purpose of the present study was to investigate temporal and longitudinal variation of caloric density of Corbicula fluminea in Rosana Reservoir. Significant differences concerning the caloric density of C. fluminea were observed throughout the year at the three reservoir sites. The caloric density variation during the year was probably related to reproductive activity, which demanded higher allocation of energy in certain period. The food source used by this species might be an important factor in the caloric value temporal and spatial variation of C. fluminea in Rosana Reservoir.

          Translated abstract

          O objetivo deste estudo foi investigar a variação temporal e longitudinal da densidade calórica de C. fluminea no reservatório de Rosana. Diferenças significativas na densidade calórica de C. fluminea foram observadas ao longo do ano e nas três estações do reservatório. A variação na densidade calórica de C. fluminea, durante o ano, provavelmente foi relacionada à atividade reprodutiva, que exige uma maior alocação de energia em determinado período. O recurso alimentar utilizado por esta espécie pode ser um importante fator na variação temporal e espacial do valor calórico de C. fluminea no reservatório de Rosana.

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          Most cited references31

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          The functional role of burrowing bivalves in freshwater ecosystems

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            Mussels: The forgotten fauna of regulated rivers. A case study of the Caney Fork River

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              The relationship of bioenergetics and the environment to the field growth of cultured bivalves

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                Author and article information

                Journal
                babt
                Brazilian Archives of Biology and Technology
                Braz. arch. biol. technol.
                Instituto de Tecnologia do Paraná - Tecpar (Curitiba, PR, Brazil )
                1516-8913
                1678-4324
                January 2007
                : 50
                : 1
                : 85-90
                Affiliations
                [01] orgnameUniversidade Estadual de Maringá
                [02] Maringá PR orgnameUniversidade Estadual de Maringá orgdiv1Núcleo de Pesquisas em Limnologia, Ictiologia e Aqüicultura Brasil
                Article
                S1516-89132007000100010 S1516-8913(07)05000110
                10.1590/S1516-89132007000100010
                4c17440e-6f70-4897-bc7d-53b20cbd707c

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

                History
                : 06 September 2006
                : 06 June 2005
                : 29 December 2005
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 6
                Product

                SciELO Brazil

                Categories
                Biological and Applied Sciences

                temporal and longitudinal variation,reservoir,caloric content,C. fluminea

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