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      Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) from the Neotropical Cormorant, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) in southern Brazil Translated title: Contracaecum rudolphii Hartwich (Nematoda, Anisakidae) parasita de biguás (cormorões Neotropicais, Phalacrocorax brasilianus (Gmelin) (Aves, Phalacrocoracidae) na região Sul do Brasil

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          Abstract

          The present report is part of a larger study on the helminth fauna of Neotropical Cormorants, Phalacrocorax brasilianus (Gmelin, 1789) in Brazil, particularly, in the southernmost State of Rio Grande do Sul. The nematodes which were found loose in the proventriculus/ventriculus or in groups of adults of different ages and of L3 and L4 larval stages, forming eosinophylic granulomas had a prevalence of 100% in 47 Neotropical cormorants from Lago Guaíba, Municipality of Guaíba. The morphology of the labia/interlabia, the distribution pattern of the caudal papillae in males examined under scanning electron microscopy (SEM), and the tips of the spicules allowed determination of the species as Contracaecum rudolphii Hartwich, 1964 sensu lato (s. l.). This is the first record of C. rudolphii in southern Brazil.

          Translated abstract

          O presente trabalho é parte de um estudo maior sobre a helmintofauna dos cormorões Neotropicais conhecidos no Brasil como biguás, Phalacrocorax brasilianus (Gmelin, 1789), particularmente, no Estado do Rio Grande do Sul. Os nematóides que foram encontrados soltos no proventrículo/ventrículo ou em grupos compostos por adultos de várias idades e larvas de vários estágios (L3 e L4), formando granulomas eosinofílicos tiveram prevalência de 100% em 47 biguás do Lago Guaíba, Município de Guaíba. A morfologia dos lábios e dos interlábios, o padrão de distribuição das papilas caudais em machos examinados com microscópio eletrônico de varredura (MEV) e as extremidades dos espículos permitiram a determinação da espécie como Contracaecum rudolphii Hartwich, 1964 sensu lato (s. l.). Este é o primeiro registro de C. rudolphii na região Sul do Brasil.

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          Most cited references24

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          Nematode parasites of vertebrates: their development and transmission.

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            The Use of Ecological Terms in Parasitology (Report of an Ad Hoc Committee of the American Society of Parasitologists)

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              Nematóides do Brasil. Parte IV: nematóides de aves

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                Author and article information

                Journal
                rbzool
                Revista Brasileira de Zoologia
                Rev. Bras. Zool.
                Sociedade Brasileira de Zoologia (Curitiba, PR, Brazil )
                0101-8175
                December 2006
                : 23
                : 4
                : 1284-1289
                Affiliations
                [01] Porto Alegre Rio Grande do Sul orgnameUniversidade Federal do Rio Grande do Sul orgdiv1Instituto de Biociências orgdiv2Departamento de Zoologia Brasil sbamato@ 123456ufrgs.br
                Article
                S0101-81752006000400046 S0101-8175(06)02300446
                10.1590/S0101-81752006000400046
                22b4747b-b410-4146-a113-dca81503f080

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

                History
                : 04 April 2006
                : 30 October 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 6
                Product

                SciELO Brazil


                MEV,taxonomia,Rio Grande do Sul,Lago Guaíba,Granulomas eosinofílicos,taxonomy,SEM,Eosinophylic granulomas

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