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      Distribución espacial y descriptores comunitarios de ectoparásitos en branquias de cojinua, Caranx ruber (Bloch, 1793) de Santa Cruz, estado Sucre, Venezuela Translated title: The spatial distribution and community descriptors of ectoparasites in gills of bar jack, Caranx ruber (Bloch, 1793) from Santa Cruz, Sucre state, Venezuela

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          Abstract

          Se analizó la distribución espacial y los descriptores comunitarios (prevalencia, densidad absoluta, densidad relativa e índice de infección) de ectoparásitos en branquias de la cojinúa carbonera, Caranx ruber Bloch, 1793 recolectados en Santa Cruz, estado Sucre, Venezuela, desde mayo de 2005 hasta abril de 2006. Se determinó el índice de dispersión (ID) y el índice de Green (IG) de los ectoparásitos en 155 ejemplares de C. ruber. Se registraron tres monogéneos (Protomicrocotyle mirabilis, Allopyragraphorus incomparabilis, Pseudomazocraes sp.), dos copépodos (Lernanthrophus kroyeri, Caligus spp.) y un isópodo (Cymothoa oestrum). Los parásitos monogéneos mostraron preferencia por el arco branquial 1 y Pseudomazocraes sp. prefirió el lado derecho del pez. Los monogéneos se consideraron especies comunes; P. mirabilis se consideró además especie central mientras que los copépodos e isópodo resultaron especies secundarias. Los parásitos presentaron el típico patrón de distribución agregado (ID > 1; IG +). Se observó una correlación significativa entre los valores de densidad absoluta de P. mirabilis (rs = 0,778; p < 0,05) y de Pseudomazocraes sp. (rs = 0,731; p < 0,05) con la talla de los ejemplares del hospedero, C. ruber. Las comunidades de monogeneos presentaron fluctuaciones estacionales. El mayor número de especies de parásitos en un hospedero determinado, estuvo relacionado con el medio ambiente más diverso de la localidad.

          Translated abstract

          The spatial distribution and community descriptors (prevalence, absolute density, relative density and infection index) of the ectoparasites in gills of the bar jack Caranx ruber Bloch, 1793 from Santa Cruz, Sucre state, Venezuela, were evaluated from May 2005 to April 2006. The Dispersion Index (DI), and Green Index (GI) of ecoparasites from 155 specimens of C. rubber is described. There were three monogeneans (Protomicrocotyle mirabilis, Allopyragraphorus incomparabilis, Pseudomazocraes s p.), t wo c opepods (Lernanthrophus kroyeri, Caligus spp.), and one isopod (Cymothoa oestrum). The monogenean parasites showed preference for gill arch I and Pseudomazocraes sp. preferred the right side of the fish. The monogeneans were considered common species while P. mirabilis was also considered a central species, and the copepods and isopod were considered as secondary species. The parasites showed a typical aggregate pattern of distribution (ID > 1; IG +). There was a significant correlation between the values of absolute density of P. mirabilis (rs = 0.778, p < 0.05) and Pseudomazocraes sp. (rs = 0.731, p <0.05) with the size of the host, C. ruber. The parasite communities showed seasonal fluctuation. The highest number of parasite species in a given host was related to the higher diversity of the local environment.

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          Most cited references54

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          The Impact of Infection and Disease on Animal Populations: Implications for Conservation Biology

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            Los peces marinhos de Venezuela

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              Variation in the intraspecific relationship between fish length and intensity of parasitic infection: biological and statistical causes

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                saber
                Saber
                Saber
                Universidad de Oriente
                2343-6468
                June 2015
                : 27
                : 2
                : 242-252
                Affiliations
                [1 ] Instituto Nacional de Investigaciones Agrícolas (INIA)
                [2 ] Universidad de Oriente, Núcleo de Sucre Venezuela
                Article
                S1315-01622015000200005
                e3707655-3d3e-4c73-bae8-71260b98dd95

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

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                SciELO Venezuela

                Self URI (journal page): http://www.scielo.org.ve/scielo.php?script=sci_serial&pid=1315-0162&lng=en
                Categories
                MULTIDISCIPLINARY SCIENCES

                Microhábitat,peces marinos,ectoparásito,Monogenea,Isopoda,Copepoda,Microhabitat,marine fish,ectoparasite

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