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      Endohelminth parasites of the freshwater fish Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) from two springs in the Lower Lerma River, Mexico Translated title: Endohelmintos parásitos del pez dulceacuícola Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) en dos manantiales de la cuenca del río Lerma bajo, México

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          Abstract

          In order to establish the helminthological record of the viviparous fish species Zoogoneticus purhepechus, 72 individuals were collected from 2 localities, La Luz spring (n= 45) and Los Negritos spring (n= 27), both in the lower Lerma River, in Michoacán state, Mexico. Twelve helminth taxa were recovered, 5 adults (the digeneans Margotrema bravoae and Phyllodistomum sp., the cestode Bothriocephalus acheilognathi, the nematode Rhabdochona lichtenfelsi and the acanthocephalan Pomphorhynchus cf. bulbocolli), and 7 larvae (the metacercariae of Clinostomum complanatum, the cysticercoid of Cyclophyllidea, the nematodes Rhabdochona sp., Eustrongylides sp., Contracaecum sp. and Spiroxys sp., and the cysthacanth of Polymorphus brevis). Of these, R. lichtenfelsi was the most prevalent and abundant species at La Luz spring with 15.6% and 0.33 individuals per analyzed host. The remaining species were relatively more rare and infrequent. The helminth parasite community of Z. purhepechus at Los Negritos spring was remarkably poor and abundance was very low. The omnivorous feeding habits, the position of the host species in the food web, and the environmental characteristics of each locality are suggested as the main factors determining the helminth parasite communities in this freshwater fish.

          Translated abstract

          Se examinaron 72 individuos del pez vivíparo Zoogoneticus purhepechus para establecer el registro helmintológico de la especie. Los huéspedes se recolectaron de los manantiales La Luz (n= 45) y Los Negritos (n= 27), ubicados en la porción baja del río Lerma, en el estado de Michoacán, México. El registro helmintológico consta de 12 especies, incluyendo como adultos los digéneos Margotrema bravoae y Phyllodistomum sp., el céstodo Bothriocephalus acheilognathi, el nemátodo Rhabdochona lichtenfelsi, y el acantocéfalo Pomphorhynchus cf. bulbocolli. Además, como estadios larvarios, se encontraron las metacercarias de Clinostomum complanatum, el cisticercoide de Cyclophyllidea, los nemátodos Rhabdochona sp., Contracaecum sp., Eustrongylides sp. y Spiroxys sp., y el cistacanto de Polymorphus brevis. De éstas, R. lichtenfelsi fue la especie más frecuente y abundante en el manantial La Luz, en tanto que las restantes fueron relativamente más raras. La comunidad de helmintos de Z. purhepechus en el manantial Los Negritos fue pobre y poco abundante. Se sugiere que los principales factores que determinan la estructura de la comunidad de helmintos son los hábitos alimentarios omnívoros de los huéspedes, la posición que éstos ocupan en la red trófica y las características ambientales de cada localidad.

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            Ecological diversity and its mesasurement

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                Author and article information

                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                December 2011
                : 82
                : 4
                : 1132-1137
                Affiliations
                [03] orgnameUniversidad Nacional Autónoma de México orgdiv1Posgrado en Ciencias Biológicas
                [01] México D.F. orgnameUniversidad Nacional Autónoma de México orgdiv1Instituto de Biología Mexico
                [02] México D.F. orgnameUniversidad Nacional Autónoma de México orgdiv1Facultad de Ciencias orgdiv2Departamento de Biología Comparada Mexico
                Article
                S1870-34532011000400007 S1870-3453(11)08200400007
                746bac4a-ca5f-4f06-8dee-d74ac033230c

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

                History
                : 31 May 2011
                : 18 August 2010
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 6
                Product

                SciELO Mexico

                Categories
                Taxonomy and systematics

                Zoogoneticus purhepechus,Mexico,helminth parasites,Goodeidae,estructura de la comunidad,helmintos parásitos,community structure,México

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