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      Metazoan fauna parasitizing Peckoltia braueri and Pterygoplichthys pardalis (Loricariidae) catfishes from the northeastern Brazilian Amazon Translated title: Fauna de metazoários parasitando Peckoltia braueri e Pterygoplichthys pardalis (Loricariidae), bagres do nordeste da Amazônia brasileira

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          Abstract

          ABSTRACT This study investigated the metazoan parasite fauna in Peckoltia braueri and Pterygoplichthys pardalis from a tributary of the Amazon River system, in northern Brazil. In P. braueri, 630 parasites were collected, belonging to Unilatus unilatus, Nothogyrodactylus sp., Genarchella genarchella, Proteocephalus sp., Gorytocephalus elongorchis, Dolops longicauda and Hirudinea gen. sp., with a dominance of monogenean species. In P. pardalis, 120 parasites were collected, belonging to U. unilatus, Acanthostomum gnerii and Gorytocephalus elongorchis, and this acanthocephalan was the dominant species. In both hosts, the parasites presented clumped distribution, high prevalence, low abundance, low Shannon diversity, and low species richness, with a predominance of helminth species. In P. braueri, host length was positively correlated with parasite species richness and Shannon index. There was no difference in the body condition of parasitized and non-parasitized fishes in either host. This was the first report of these parasites in P. braueri and P. pardalis.

          Translated abstract

          RESUMO Este estudo investigou a fauna de parasitos metazoários em Peckoltia braueri e Pterygoplichthys pardalis de um tributário do sistema do Rio Amazonas, no Amapá, norte do Brasil. Em P. braueri foram coletados 630 parasitos das espécies Unilatus unilatus, Nothogyrodactylus sp., Genarchella genarchella, Proteocephalus sp., Gorytocephalus elongorchis, Dolops longicauda e Hirudinea gen. sp., com dominância das espécies de monogenoideas. Em P. pardalis foram coletados 120 parasitos das espécies U. unilatus, Acanthostomum gnerii e Gorytocephalus elongorchis, sendo este acantocéfalo a espécie dominante. Os parasitos em ambos hospedeiros apresentaram dispersão agregada, elevada prevalência, baixa abundância, baixa diversidade de Shannon e baixa riqueza de espécies, com predominância de espécies de helmintos. Em P. braueri, o comprimento dos hospedeiros apresentou correlação positiva com a riqueza de espécies de parasitos e o índice de Shannon. Não houve diferença entre a condição corporal de peixes parasitados e não parasitados para os dois hospedeiros. Este foi o primeiro relato desses parasitos para P. braueri e P. pardalis.

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          Measuring biological diversity

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                aa
                Acta Amazonica
                Acta Amaz.
                Instituto Nacional de Pesquisas da Amazônia (Manaus, AM, Brazil )
                0044-5967
                1809-4392
                June 2017
                : 47
                : 2
                : 147-154
                Affiliations
                [2] Santarém Pará orgnameUniversidade Federal do Oeste do Pará orgdiv1Programa de Pós-Graduação em Recursos Aquáticos e Continentais Amazônicos Brazil
                [1] Macapá Amapá orgnameUniversidade Federal do Amapá orgdiv1Programa de Pós-Graduação em Biodiversidade Tropical Brazil
                [3] Macapá Amapá orgnameUniversidade Federal do Amapá orgdiv1Programa de Pós-Graduação em Biodiversidade e Biotecnologia Brazil
                [4] Macapá Amapá orgnameEmbrapa Amapá Brazil
                Article
                S0044-59672017000200147
                10.1590/1809-4392201603232
                bc2afb6a-ea88-4c1d-857d-59b44cd90cfc

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

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                Figures: 0, Tables: 0, Equations: 0, References: 48, Pages: 8
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