DOCSLIB.ORG

Helminth Parasites of Xenotaenia Resolanae (Osteichthyes: Cyprinodontiformes: Goodeidae) from the Cuzalapa Hydrological System, Jalisco, Mexico

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Helminth Parasites of Xenotaenia Resolanae (Osteichthyes: Cyprinodontiformes: Goodeidae) from the Cuzalapa Hydrological System, Jalisco, Mexico J. Parasitol., 95(5), 2009, pp. 1221–1223 F American Society of Parasitologists 2009 Helminth Parasites of Xenotaenia resolanae (Osteichthyes: Cyprinodontiformes: Goodeidae) From the Cuzalapa Hydrological System, Jalisco, Mexico Andre´s Martı´nez-Aquino, Rogelio Aguilar-Aguilar, Rodolfo Pe´rez-Rodrı´guez, and Gerardo Pe´rez-Ponce de Leo´n*, Departamento de Zoologı´a, Instituto de Biologı´a, Universidad Nacional Auto´noma de Me´xico, C.P. 04510, Apartado Postal 70-153, Me´xico, D.F., Mexico; *To whom correspondence should be addressed. e-mail: [email protected] ABSTRACT: Six helminth species were recorded during the helmintholo- A total of 154 individual helminths was collected. Six helminth species gical examination of 35 specimens of the goodeid Xenotaenia resolanae were recovered, 4 digeneans and 2 nematodes (Table I). Three species were from Arroyo Durazno, Jalisco, Mexico, a tributary of the Cuzalapa River. recovered as larval stages: Clinostomum complanatum, Posthodiplostomum Helminth species identified included: 4 species of digeneans, i.e., minimum, and Spiroxys sp.; the remaining 3 helminth species were adults. Posthodiplostomum minimum (metacercariae), Clinostomum companatum The digenean Margotrema guillerminae was the most abundant species, (metacercariae), Dendrorchis sp. (adult), and Margotrema guillerminae accounting for about 85% of the collected worms, followed by R. (adult); and 2 species of nematodes, i.e., Spiroxys sp. (larvae) and ahuehuellensis, which accounted for 10.4%. The digenean Dendrorchis sp. Rhabdochona ahuehuellensis (adult). A very low number of individual was the least numerous, with a prevalence of 5.7% and a mean intensity of larvae were found. The observed species richness, individual parasite 1.5 worms per infected host. This digenean was not identified to species abundance, and diversity were low at both component community and level because it appears to represent an undescribed species. Additional infracommunity levels. The values of similarity between infracommunities samples are necessary to present a proper description. Infection site, were relatively high because of the predominance of the digenean M. number of infected fish, prevalence, abundance, and mean intensity of guillerminae, the species that reached the higher values of both prevalence each helminth species are shown in Table I. and abundance. High water flow of the collecting site is suggested as the Thirty of the 35 individual hosts were infected with at least 1 species of main factor determining the depauperate helminth assemblage in this fish helminth. Eight of these harbored 2 or more helminth species. The total species. number of individual helminths of all species per host varied from 1 to 24, with a mean number of 4.4 ± 5.4 individuals per host. The Olmstead- Xenotaenia resolanae Turner 1946, (Cyprinodontiformes: Goodeidae) Tukey test showed that only the intestinal digenean M. guillerminae was ranges in small rivers in Central Mexico’s Pacific Slope (Domı´nguez- frequent (prevalence .80%) and abundant (abundance .3.7 worms per Domı´nguez et al., 2005). It is not recorded as an endangered species analyzed host). The other intestinal species, i.e., R. ahuhuellensis, exhibited (Froese and Pauly, 2008), even though some authors have suggested that a relatively high prevalence, but it was not abundant, while the this fish species is very susceptible to environmental degradation (Lyons Dendrorchis sp. was actually a rare species. The remaining species and Navarro-Pe´rez, 1990) and should be regarded as vulnerable exhibited low prevalence and abundance values (Table I) and were also (Domı´nguez-Domı´nguez et al., 2005). The helminth fauna of this considered as rare. freshwater fish is poorly known. The only published record for X. The helminth infracommunities were species-poor. Most infracommu- resolanae includes the intestinal nematode Rhabdochona ahuehuellensis nities were composed of a single species, 7 of them had 2 helminth species, (Mejı´a-Madrid et al., 2005). However, this record was established for the and only 1 had the maximum of 4 species. The mean number of species per Rio Tecolote, Jalisco, a locality different from the one examined in the host was 1.1 ± 0.8. Five of the 7 infracommunities with 2 or more species present study. The aim of this research note is to present the were composed of the intestinal adult worms M. guillerminae and R. helminthological record of X. resolanae from Arroyo Durazno, a tributary ahuehuellensis. The Brillouin index for all infracommunities varied from 0 of the Cuzalapa River which drains into the Marabasco River Basin in the to 0.915, with a mean diversity value of 0.113 ± 0.218, while the Berger- state of Jalisco, Mexico; to describe the helminth infracommunity Parker dominance index values varied from 0.444 to 1, with a mean of structure; and to briefly discuss the possible causes that determine that 0.918 ± 0.16. For comparative purposes, we calculated the Brillouin index structure. for the 8 infracommunities with at least 2 species, which varied from 0.23 On August 2008, 35 specimens of X. resolanae were collected by to 0.915 with a mean diversity value of 0.425 ± 0.215; the Berger-Parker dominance index values varied from 0.444 to 0.900 with a mean of 0.693 ± electrofishing from Arroyo Durazno (19u30932.10N, 104u17945.60W), which is a small affluent of the Cuzalapa River, a tributary of the 0.167. Most of these assemblages were dominated by the digenean M. Marabasco River Basin in Jalisco State, southwestern Mexico. Hosts were guillerminae. The helminth infracommunities showed a relatively high level taken alive to the laboratory, pithed, and examined individually for of similarity. The corresponding Jaccard index varied from 0 to 1 (mean of intestinal helminths. Other organs (gills, liver, gall, swim and urinary 0.654 ± 0.353), and the Morisita-Horn index varied from 0 to 1 (mean of bladders, and spleen) were examined using a stereomicroscope in separate 0.765 ± 0.342). Petri dishes with 0.65% saline. Worms were fixed with 4% hot (steaming) Three of the 6 helminth species parasitizing X. resolanae were larval formalin. Platyhelminths were stained with Mayer’s paracarmine. stages. However, even though they have been previously reported Nematodes were cleared with glycerin for light microscopy and stored in parasitizing other goodeids in Central and Northern Mexico (Peresbar- 70% ethanol. Voucher specimens of all taxa were deposited in the bosa-Rojas et al., 1994; Martı´nez-Aquino et al., 2004; Mejı´a-Madrid et al., Coleccio´n Nacional de Helmintos (CNHE), Instituto de Biologı´a, 2005; Martı´nez-Aquino et al., 2007), their prevalence and abundance were Universidad Nacional Auto´noma de Me´xico, Mexico City. Use of very low. The remaining 3 taxa have also been reported for other goodeid prevalence (% infected), mean intensity (mean number of parasites per species and are members of the core endohelminth fauna of this fish family infected fish), and abundance (mean number of parasites of a single (Mejı´a-Madrid et al., 2005), particularly M. guillerminae and R. species per analyzed host) follows Bush et al. (1997). Helminth species ahuehuellensis, while congeneric species of Dendrorchis have been recorded were classified from an ecological point of view as dominant (high as parasites of characids in the Neotropical region (Volonterio and Ponce prevalence and abundance) and rare (low prevalence and abundance) after de Leo´n, 2005). The record of 3 adult endohelminth species in X. an Olmstead-Tukey corner test of association (Steel and Torrie, 1981). resolanae, along with the finding of Salsuginus (monogeneans) on the gills Infracommunities were described by the mean number of parasite species, (Martı´nez-Aquino, 2005), conform a particular parasite assemblage where the mean number of individual helminths, and the mean value of the adult native species are predominant. The helminth parasite species Brillouin diversity index that is commonly used in parasitological studies composition herein reported for X. resolanae is similar to that found in for fully censured communities. To demonstrate numerical dominance, the other goodeid fishes in central and northern Mexico (Peresbarbosa-Rojas Berger-Parker index was used (the closer the value to 1.00, the greater the et al., 1994; Pe´rez-Ponce de Leo´n et al., 2000; Martı´nez-Aquino et al., dominance). Similarity among infracommunities was estimated by using 2 2004; Sa´nchez-Nava et al., 2004; Mejı´a-Madrid et al., 2005; Salgado- indices: the Jaccard index and the Morisita-Horn index, for qualitative Maldonado, 2006; Martı´nez-Aquino et al., 2007; Romero-Tejeda et al., and quantitative similarity, respectively, as calculated in Magurran (1988). 2008). However, the prevalence and abundance of individual larval forms is very low. This can be explained as a result of the physical conditions of the locality where fishes were collected, particularly water flow. The brook DOI: 10.1645/GE-1925.1 where we conducted our sampling belongs to a small, exoreic river basin 1221 1222 THE JOURNAL OF PARASITOLOGY, VOL. 95, NO. 5, OCTOBER 2009 TABLE I. Helminth parasites of Xenotaenia resolanae (n 5 35) in Arroyo Durazno, Jalisco, Mexico. Number of Prevalence Mean intensity CNHE Helminth Infection site(s)* infected hosts (%) Abundance ± SD catalog no. Adult Digenea Margotrema guillerminae I 28 80 3.74 4.68 ± 5.6 6880 Dendrorchis sp. U 2 5.71 0.09 1.5 ± 0.71 6881 Larval Digenea Clinostomum complanatum Bc 1 2.86 0.03 1 6882 Posthodiplostomum minimum M 1 2.86 0.03 1 6883 Adult Nematoda Rhabdochona ahuehuellensis I 7 20 0.46 2.29 ± 1.49 6884 Larval Nematoda Spiroxys sp. M 1 2.86 0.06 2 6885 * I, intestine; U, urinary bladder; Bc, body cavity; M, mesentery. where water flows very rapidly and, apparently, there are no piscivorous BUSH, A. O., K. D. LAFFERTY,J.M.LOTZ, AND A. W. SHOSTAK. 1997. birds nesting in the area because no aquatic vegetation can be established Parasitology meets ecology on its own terms: Margolis et al.
Load more

Recommended publications
  • The Evolution of the Placenta Drives a Shift in Sexual Selection in Livebearing Fish
    LETTER doi:10.1038/nature13451 The evolution of the placenta drives a shift in sexual selection in livebearing fish B. J. A. Pollux1,2, R. W. Meredith1,3, M. S. Springer1, T. Garland1 & D. N. Reznick1 The evolution of the placenta from a non-placental ancestor causes a species produce large, ‘costly’ (that is, fully provisioned) eggs5,6, gaining shift of maternal investment from pre- to post-fertilization, creating most reproductive benefits by carefully selecting suitable mates based a venue for parent–offspring conflicts during pregnancy1–4. Theory on phenotype or behaviour2. These females, however, run the risk of mat- predicts that the rise of these conflicts should drive a shift from a ing with genetically inferior (for example, closely related or dishonestly reliance on pre-copulatory female mate choice to polyandry in conjunc- signalling) males, because genetically incompatible males are generally tion with post-zygotic mechanisms of sexual selection2. This hypoth- not discernable at the phenotypic level10. Placental females may reduce esis has not yet been empirically tested. Here we apply comparative these risks by producing tiny, inexpensive eggs and creating large mixed- methods to test a key prediction of this hypothesis, which is that the paternity litters by mating with multiple males. They may then rely on evolution of placentation is associated with reduced pre-copulatory the expression of the paternal genomes to induce differential patterns of female mate choice. We exploit a unique quality of the livebearing fish post-zygotic maternal investment among the embryos and, in extreme family Poeciliidae: placentas have repeatedly evolved or been lost, cases, divert resources from genetically defective (incompatible) to viable creating diversity among closely related lineages in the presence or embryos1–4,6,11.
    [Show full text]
  • Redalyc.Endohelminth Parasites of the Freshwater Fish Zoogoneticus
    Revista Mexicana de Biodiversidad ISSN: 1870-3453 [email protected] Universidad Nacional Autónoma de México México Martínez-Aquino, Andrés; Hernández-Mena, David Iván; Pérez-Rodríguez, Rodolfo; Aguilar-Aguilar, Rogelio; Pérez-Ponce de León, Gerardo Endohelminth parasites of the freshwater fish Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) from two springs in the Lower Lerma River, Mexico Revista Mexicana de Biodiversidad, vol. 82, núm. 4, diciembre, 2011, pp. 1132-1137 Universidad Nacional Autónoma de México Distrito Federal, México Available in: http://www.redalyc.org/articulo.oa?id=42520885007 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Revista Mexicana de Biodiversidad 82: 1132-1137, 2011 Endohelminth parasites of the freshwater fish Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) from two springs in the Lower Lerma River, Mexico Endohelmintos parásitos del pez dulceacuícola Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) en dos manantiales de la cuenca del río Lerma bajo, México Andrés Martínez-Aquino1,3, David Iván Hernández-Mena1,3, Rodolfo Pérez-Rodríguez1,3, Rogelio Aguilar- Aguilar2 and Gerardo Pérez-Ponce de León1 1Instituto de Biología, Universidad Nacional Autónoma de México, Apartado postal 70-153, 04510 México, D.F., Mexico. 2Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Apartado postal 70-399, 04510 México, D.F., Mexico. 3Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México. [email protected] 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.
    [Show full text]
  • Molecular Systematics of Characodon: Phylogeny Based on a Nuclear Locus Joshua Mccausland University of North Georgia
    University of North Georgia Nighthawks Open Institutional Repository Honors Theses Honors Program 1-2014 Molecular systematics of Characodon: Phylogeny based on a nuclear locus Joshua McCausland University of North Georgia Follow this and additional works at: https://digitalcommons.northgeorgia.edu/honors_theses Part of the Biology Commons Recommended Citation McCausland, Joshua, "Molecular systematics of Characodon: Phylogeny based on a nuclear locus" (2014). Honors Theses. 2. https://digitalcommons.northgeorgia.edu/honors_theses/2 This Honors Thesis is brought to you for free and open access by the Honors Program at Nighthawks Open Institutional Repository. It has been accepted for inclusion in Honors Theses by an authorized administrator of Nighthawks Open Institutional Repository. Joshua McCausland Molecular systematics of Characodon: Phylogeny based on a nuclear locus A Thesis Presented to the Honors Faculty of the University of North Georgia by Joshua McCausland Dahlonega, GA January 2014 Characodon Systematics Accepted by the Honors Faculty of the University of North Georgia in partial fulfillment of the requirements for the title of Honors Program Graduate Thesis Committee: Characodon Systematics Abstract Characodon is a genus of livebearing fishes whose two extant species (C. lateralis and C. audax) inhabit localities along the Río Mezquital of Durango, Mexico. This lineage of Goodeidae (Cyprinodontiformes) is critical to study because of its biogeographic and phylogenetic positions within the group, and both species are of conservation concern. A recent mitochondrial DNA analysis contradicts the published taxonomy, and suggests that Characodon has diverged into northern and southern populations. This, coupled with the observation that the morphological characteristics used in the original species descriptions might be flawed, has led me to study the phylogenetic relationships among populations using a third kind of evidence, nuclear DNA.
    [Show full text]
  • Endohelminth Parasites of the Freshwater Fish Zoogoneticus Purhepechus (Cyprinodontiformes: Goodeidae) from Two Springs in the Lower Lerma River, Mexico
    Revista Mexicana de Biodiversidad 82: 1132-1137, 2011 Endohelminth parasites of the freshwater fish Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) from two springs in the Lower Lerma River, Mexico Endohelmintos parásitos del pez dulceacuícola Zoogoneticus purhepechus (Cyprinodontiformes: Goodeidae) en dos manantiales de la cuenca del río Lerma bajo, México Andrés Martínez-Aquino1,3, David Iván Hernández-Mena1,3, Rodolfo Pérez-Rodríguez1,3, Rogelio Aguilar- Aguilar2 and Gerardo Pérez-Ponce de León1 1Instituto de Biología, Universidad Nacional Autónoma de México, Apartado postal 70-153, 04510 México, D.F., Mexico. 2Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Apartado postal 70-399, 04510 México, D.F., Mexico. 3Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México. [email protected] 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.
    [Show full text]
  • UNIVERSIDAD MICHOACANA DE SAN NICOLÁS DE HIDALGO Patrones De Riqueza, Endemismo Y Diversidad Beta Para La Conservación De
    UNIVERSIDAD MICHOACANA DE SAN NICOLÁS DE HIDALGO Facultad de Biología Coordinación de Estudios de Posgrado Programa Institucional de Maestría en Ciencias Biológicas Ecología y Conservación Patrones de riqueza, endemismo y diversidad beta para la conservación de las especies y linajes de peces del centro de México TESIS Para obtener el grado de Maestra en Ciencias Biológicas Que presenta: BIOL. ANA BERENICE GARCÍA ANDRADE TUTOR: DR. OMAR DOMÍNGUEZ DOMÍNGUEZ Morelia Michoacán, marzo de 2017 “Nuestra lealtad es para las especies y el planeta. Nuestra obligación de sobrevivir no es sólo para nosotros mismos sino también para ese cosmos, antiguo y vasto, del cual derivamos” Carl Sagan (1934-1996) Conservación de la ictiofauna del centro de México AGRADECIMIENTOS Quiero agradecer a mi tutor, el Dr. Omar Domínguez, quien me ha permitido incursionar en un área distinta, retarme, confiar en mí y sobre todo por permitirme ser quien soy. Agradezco a las instituciones que apoyaron o financiaron parcialmente este proyecto de investigación; en la Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), a la Coordinación de la Investigación Científica, la facultad de Biología y al laboratorio de Biología Acuática “J. Javier Alvarado Díaz”. Además, a la National Science Foundation para la Southeastern Louisiana University y el proyecto financiano por el Ministerio de Economia y Competitividad de España (CGL2013-41375-P). Personalmente agradezco al Consejo Nacional de Ciencia y Tecnología por la beca otorgada para la realización de mi maestría, además del apoyo adicional para mi estancia en el extranjero. Así como los apoyos otorgados por la Jefatura de la división de estudios de Posgrado, el Programa de Fortalecimiento a la Calidad Educativa (P/PROFOCIE-2015-16MSU0014T- 09) y el Programa Institucional de Maestría en Ciencias Biologícas de la UMSNH para la realización de estancias y la asistencia a congresos, dentro y fuera de México.
    [Show full text]
  • Two New Species of Phyllodistomum Braun, 1899
    Zootaxa 4013 (1): 087–099 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.4013.1.6 http://zoobank.org/urn:lsid:zoobank.org:pub:9063B1EB-E96F-4ABD-9504-D7076EC879E9 Two new species of Phyllodistomum Braun, 1899 (Digenea: Gorgoderidae), from freshwater fishes (Cyprinodontiformes: Goodeidae: Goodeinae) in central Mexico: An integrative taxonomy approach using morphology, ultrastructure and molecular phylogenetics GERARDO PÉREZ-PONCE DE LEÓN1, ANDRÉS MARTÍNEZ-AQUINO2 & BERENIT MENDOZA-GARFIAS1 1Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Ap. Postal 70-153 C.P. 04510, México D.F., México. E-mail: [email protected]; [email protected] 2División Zoología Invertebrados, Museo de La Plata, FCNyM, UNLP, Paseo del Bosque s/n, 1900 La Plata, Argentina. E-mail: [email protected] Abstract An integrative taxonomy approach is used to characterise the diversity of gorgoderid trematodes that parasitize freshwater fishes of the subfamily Goodeinae in central Mexico. Records of Phyllodistomum sp. and Dendrorchis sp. from the urinary bladder of goodeines have been previously published, although the identification at species level was not achieved. A few specimens were collected and fixed to conduct a scanning electron microscopy study, and to obtain sequences of a mito- chondrial (COI) and nuclear (28S rRNA) gene, to be analysed in the context of the molecular phylogeny of gorgoderid trematodes. Based on the new findings, two new species of Phyllodistomum Braun, 1899 are described. Phyllodistomum cribbi n. sp. was found in Zoogoneticus quitzeoensis (Bean), Allotoca zacapuensis Meyer, Radda & Domínguez- Domínguez, Hubbsina turneri de Buen and Z.
    [Show full text]
  • Estado De Conservación De Los Peces De La Familia Goodeidae (Cyprinodontiformes) En La Mesa Central De México
    Estado de conservación de los peces de la familia Goodeidae (Cyprinodontiformes) en la mesa central de México Marina Y. De la Vega-Salazar Departamento de Ecología Evolutiva, Instituto de Ecología UNAM. Dirección actual: Universidad de Guadalajara, Centro Universitario Los Lagos. Enrique Díaz de León s/n, Colonia Paseos de la Montaña Lagos de Moreno, Jalisco, México; [email protected] Recibido 10-VI-2005. Corregido 11-VIII-2005. Aceptado 15-X-2005. Abstract: Conservation status of Goodeidae familiy fishes (Cyprinodontiformes) from the Mexican Central Plateau. To establish the conservation status and threats for Goodeidae fishes in the high plateau of Mexico, I assessed limnological descriptions, and the reduction in range and in number of localities where they are found, in 53 localities (58.8% of historically reported localities). This assessment included the comparison of current collections with historical records. A principal component analysis of limnological variables showed that most remnant Goodeid species inhabit localities characterised by low environmental degradation: few appear to have a high tolerance to environmental degradation. Overall, 65% of species suffered a reduction in number of localities where they are found. Almost all species face some conservation threat, considering the criteria and categories established by the International Union for the Conservation of Nature (IUCN). Data suggest that one species is extinct (Allotoca catarinae), one more is extinct in the wild (Skiffia francesae), eight are critically endangered (Allodontichthys hubbsi, Allotoca goslinei, Allotoca regalis, Allotoca zacapuensi, Ameca splendens, Characodon audax, Hubbsina turneri, and Zoogoneticus tequila), eleven are endangered, eight can be regarded as vulnerable, four are “near threatened” and only two appear to under “least concern”.
    [Show full text]
  • Comparative Historical Biogeography of Three Groups of Nearctic Freshwater Fishes Across Central Mexico
    Journal of Fish Biology (2015) doi:10.1111/jfb.12611, available online at wileyonlinelibrary.com Comparative historical biogeography of three groups of Nearctic freshwater ishes across central Mexico R. Pérez-Rodríguez*†‡, O. Domínguez-Domínguez§, I. Doadrio‖, E. Cuevas-García¶ and G. Pérez-Ponce de León* *Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, C. P. 04510 México, Distrito Federal, México, †Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Av. Universidad 3000, C. P. 04510, Coyoacán, Distrito Federal, México, §Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, C. P. 58088 Morelia, Michoacán, México, ‖Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, c/José Gutiérrez Abascal 2, E-28006 Madrid, España and ¶Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, C. P. 58088 Morelia, Michoacán, México (Received 3 September 2013, Accepted 19 November 2014) Biogeographic patterns of the three main Nearctic groups of continental ishes inhabiting river drainages in central Mexico (livebearing goodeids, southern Mexican notropins and species of Algansea, the last two representing independent lineages of cyprinids) were obtained and compared by following two approaches: an estimate of divergence times and using a well-deined biogeographic method. Three concordant biogeographic events were identiied among the three groups, showing some evidence of a partially congruent evolutionary history. The analysed groups show at least three independent colonization events into central Mexico: two western routes, followed by the Goodeinae and members of Algansea, and an early Plateau route followed by southern notropins. The most recent common ancestor (MRCA) of each of the three freshwater ish groups diversiied in central Mexico in the Late Miocene.
    [Show full text]
  • Informe De Actividades 2009
    INFORME DE ACTIVIDADES 2009 T i l a M a r í a P é r e z O r t i z D i r e c t o r a Instituto de Biología Universidad Nacional Autónoma de México Instituto de Biología INFORME DE ACTIVIDADES, 2009 Diseño de la portada: Instituto de Biología, D. G. Julio César Montero Rojas Fotografía de la portada: D. G. Julio César Montero Rojas www.ibiologia.unam.mx ii ________________UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO________________ Rector Dr. José Narro Robles Secretario General Dr. Sergio M. Alcocer Martínez de Castro Secretario Administrativo M. en C. Juan José Pérez Castañeda Secretaria de Desarrollo Institucional Dra. Rosaura Ruiz Gutiérrez Abogado General Lic. Luis Raúl González Pérez Secretario de Servicios a la Comunidad MC. Ramiro Jesús Sandoval Coordinador de la Investigación Científica Dr. Carlos Arámburo de la Hoz iii ___INSTITUTO DE BIOLOGÍA______________________________________________________ Dra. Tila María Pérez Ortiz Directora Dr. Fernando A. Cervantes Reza Secretario Académico Biól. Noemí Chávez Castañeda Secretaria Técnica Lic. Claudia A. Canela Galván Secretaria Administrativa Jefe de Unidades Académicas Dr. Claudio Delgadillo Moya Departamento de Botánica Dra. Patricia Escalante Pliego Departamento de Zoología Dr. Javier Caballero Nieto Jardín Botánico Dr. Jorge Humberto Vega Rivera Estación de Biología Chamela Biól. Rosamond Ione Coates Lutes Estación de Biología Los Tuxtlas Responsable de Posgrado Dra Ma. de los Ángeles Herrera Campos Coordinadora de Bibliotecas Lic. Georgina Ortega Leite iv ____________________________________________________________CONSEJO INTERNO___ Presidente Dra. Tila María Pérez Ortiz Secretario Dr. Fernando A. Cervantes Reza Consejeros Jefes de Unidades Académicas y Posgrado Dr. Claudio Delgadillo Moya Dra. Patricia Escalante Pliego Dr.
    [Show full text]
  • Karyosystematics of an Endemic Tooth-Carp, Aphanius Shirini (Teleostei: Cyprinodontidae) from Iran
    Journal of Cell and Molecular Research (2017) 9 (2), 54-58 DOI: 10.22067/jcmr.v9i2.67315 Research Article Karyosystematics of an Endemic tooth-carp, Aphanius shirini (Teleostei: cyprinodontidae) from Iran Azam Mansoori1, Mehregan Ebrahimi1,2, Ali Gholamhosseini1, Hamid Reza Esmaeili1,* 1 Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran 2School of Biological Sciences, Flinders University, Adelaide, SA, Australia Received 8 Septamber 2017 Accepted 15 October 2017 Abstract The karyological and cytological characteristics of an endemic cyprinodont fish of Iran, Aphanius shirini have been investigated for the first time by examining metaphase chromosomes spreads obtained from gill epithelial and kidney cells. The diploid chromosome number of this species is 48. The karyotype consisted of one submetacentric and 23 subtelocentric pairs of chromosomes (2Sm + 46St). The chromosome arm number (NF) is 50. Sex chromosomes were cytologically indistinguishable in this tooth-carp. Based on the present and previous reported diploid chromosome number for other cyprinodont species, it can be suggested that the diploid chromosome number of 2n = 48 is the modal number of the cyprinodont fish. Keywords: Cyprinodontiformes, Chromosome, Cytogenetical analysis, Idiogram Introduction Cyprinodontiformes order comprises 10 families been reported from Iran consisted of A. dispar and and about 1326 species (Eschmeyer and Fong, 1998) A. ginaonis (Esmaeili et al., 2008a), A. farsicus and of mostly small, fresh and brackish water fish A. sophiae (Esmaeili et al., 2007), A. isfahanensis inhabiting harsh environments, such as saline or very (Esmaeili et al., 2008b), A. mento (Arai, 2011) and warm waters, water of poor quality, or isolated Aphanius vladykovi (Esmaeili et al., 2009).
    [Show full text]
  • Poblaciones 4.1. Estudios De Laboratorio Y Campo 4 4
    UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO PROGRAMA DE POSGRADO EN CIENCIAS BIOLÓGICAS Denominación de la actividad académica (completa): Ecología de Helmintiasis en Vertebrados Silvestres Clave: Semestre: Campo de conocimiento: Número de Créditos: (no llenar) 2022-1 Biología Evolutiva Ecología 8 Sistemática Carácter Horas Horas por semana Horas por semestre Optativa de elección Teóricas Prácticas 4 64 32 32 Modalidad Duración del curso Curso, teórico-práctico Semestral Seriación indicativa u obligatoria antecedente, si es el caso: Seriación indicativa Seriación indicativa u obligatoria subsecuente, si es el caso: Seriación indicativa Objetivo general: El alumno aprenderá los métodos y técnicas propuestas para el análisis ecológico de las helmintiasis en vertebrados silvestres. Objetivos específicos: (en si caso) - Revisar los aspectos teóricos básicos sobre ecología de helmintos de animales silvestres. - Manejar las técnicas que más comúnmente se emplean para recabar y analizar datos en helmintología. - Aplicar las técnicas y metodologías para la resolución de problemas en la ecología de helmintos. Temario Horas Teóricas Prácticas Unidad 1 Generalidades de Helmintos 1.1. Morfología 4 1.2. Ciclos de vida 1.3. Estrategias reproductivas. 1.4. Estrategias de colonización y transmisión. 1.4.1. Consecuencias evolutivas. Unidad 2 Conceptos generales en ecología de hemintiasis 2 2 2.1. Definiciones de población, infrapoblación, metapoblación y suprapoblación. Unidad 3 Caracterización de infecciones por helmintos. 3.1. Diseño del muestreo 2 2 3.2. Parámetros poblacionales para caracterizar las infecciones por helmintos. Unidad 4 Poblaciones 4.1. Estudios de laboratorio y campo 4 4 4.2. Dinámica poblacional de parásitos. 4.3. Regulación denso-dependiente. 4.4. Influencia de los parásitos sobre las poblaciones de hospederos.
    [Show full text]
  • Two New Species of Phyllodistomum Braun, 1899
    Zootaxa 4013 (1): 087–099 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.4013.1.6 http://zoobank.org/urn:lsid:zoobank.org:pub:9063B1EB-E96F-4ABD-9504-D7076EC879E9 Two new species of Phyllodistomum Braun, 1899 (Digenea: Gorgoderidae), from freshwater fishes (Cyprinodontiformes: Goodeidae: Goodeinae) in central Mexico: An integrative taxonomy approach using morphology, ultrastructure and molecular phylogenetics GERARDO PÉREZ-PONCE DE LEÓN1, ANDRÉS MARTÍNEZ-AQUINO2 & BERENIT MENDOZA-GARFIAS1 1Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Ap. Postal 70-153 C.P. 04510, México D.F., México. E-mail: [email protected]; [email protected] 2División Zoología Invertebrados, Museo de La Plata, FCNyM, UNLP, Paseo del Bosque s/n, 1900 La Plata, Argentina. E-mail: [email protected] Abstract An integrative taxonomy approach is used to characterise the diversity of gorgoderid trematodes that parasitize freshwater fishes of the subfamily Goodeinae in central Mexico. Records of Phyllodistomum sp. and Dendrorchis sp. from the urinary bladder of goodeines have been previously published, although the identification at species level was not achieved. A few specimens were collected and fixed to conduct a scanning electron microscopy study, and to obtain sequences of a mito- chondrial (COI) and nuclear (28S rRNA) gene, to be analysed in the context of the molecular phylogeny of gorgoderid trematodes. Based on the new findings, two new species of Phyllodistomum Braun, 1899 are described. Phyllodistomum cribbi n. sp. was found in Zoogoneticus quitzeoensis (Bean), Allotoca zacapuensis Meyer, Radda & Domínguez- Domínguez, Hubbsina turneri de Buen and Z.
    [Show full text]