Neotropical helminthology最新文献

{"title":"Prevalencia de parásitos gastrointestinales en caballos pura sangre de carrera (Equus caballus) durante el periodo de cuarentena 2010 en el Hipódromo \"La Rinconada\" Caracas, Venezuela","authors":"B. AbelardoMorales, Héctor Bello, R. MariamS.Gómez","doi":"10.24039/RNH2011511038","DOIUrl":"https://doi.org/10.24039/RNH2011511038","url":null,"abstract":"Se realizo un estudio coprologico empleando la tecnica de flotacion Mc master (Willis-Molloy) a un total de 650 equinos (Equus caballus Linnaeus, 1758), raza Pura Sangre de Carrera, 300 machos y 350 hembras, todos de 2 anos de edad, procedentes de centros de cria de la region central de Venezuela durante el periodo de cuarentena 2010 en el Hipodromo “La Rinconada” Caracas, Venezuela. El estudio parasitologico revelo la presencia de huevos de estrongilos en 477 equinos (73%), huevos de Parascaris equorum (Goeze, 1782) en 23 (4%) y 150 negativos (23%). La presencia de estrongilos se mantuvo por equino entre un rango de 550-1850 HPG (Huevos por g de heces), mientras que P. equorum fue para 250-600 HPG. Estos resultados parecen indicar un plan sanitario inadecuado y especificamente en el control de parasitos. Es posible una resistencia parasitaria a los desparasitantes de uso convencional, pero tambien pudiera estar asociado a los cambios climaticos que modifican el ciclo biologico de estos parasitos. En conclusion, se registro la presencia de parasitos gastrointestinales en equinos de Pura Sangre de Carreras, durante el periodo de cuarentena en el Hipodromo “La Rinconada” Caracas, Venezuela","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125679643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CLINOSTOMUM MARGINATUM (BRAUN, 1899) Y AUSTRODIPLOSTOMUM COMPACTUM (LUTZ, 1928) METACERCARIAS CON POTENCIAL ZOONÓTICO EN PYGOCENTRUS NATTERERI (KNER, 1858) (CHARACIFORMES: SERRASALMIDAE) DE LA AMAZONÍA CENTRAL, BRASIL","authors":"Aprigio Mota Morais, Angela Maria Bezerra Varella, Berenice M. M. Fernandes, Joseph Malta","doi":"10.24039/RNH2011511030","DOIUrl":"https://doi.org/10.24039/RNH2011511030","url":null,"abstract":"The present study investigated the presence of helminths in fillets of red piranha, Pygocentrus nattereri (Kner, 1858), with a note of a possible zoonotic potential of its consumption in nature. We examined 40 fish caught in lakes in the floodplain of the Solimoes River, located in the municipalities of Coari and Manaus in central Amazonia, Brazil. All fish examined were adults and had yellow cysts in the musculature. Of the 69 cysts found, 66 were identified as metacercariae of Clinostomum marginatum (Braun, 1899) and 3 as Austrodiplostomum compactum (Lutz, 1928). The analysis shows a higher susceptibility of P. nattereri for metacercariae of C. marginatum. The fact that metacercariae were found in fillets of P. nattereri, suggests a risk situation, addresses a concern about its use in raw form. It should not be consumed without proper inspection, processing and freezing, since ceviche, is readily consumed, mainly in the border region of the upper and Western Amazonia.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131333714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HELMINTOLOGÍA NEOTROPICAL EN LOS PAÍSES EMERGENTES: UN DESAFÍO","authors":"R. M. Pinto","doi":"10.24039/RNH2011511029","DOIUrl":"https://doi.org/10.24039/RNH2011511029","url":null,"abstract":"As widely known, the neotropical region is represented by Central America, south of Mexico, Baja California Peninsula, northwestern of Mexico, Caribbean Islands, south of Florida and South America. On the basis of the outstanding and peculiar biodiversity of the region, a great number of helminthological studies related to the parasites occurring in animals present in the different environments of the area, has been accounted.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"264 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116531426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"COMUNIDADES DE PARÁSITOS DE PATAGONOTOTHEN TESSELLATA (RICHARDSON, 1845) (PISCES: NOTOTHENIIDAE) DE CHILE AUSTRAL: ¿QUÉ TAN DETERMINANTE ES EL SEXO DEL HOSPEDERO?","authors":"Catalina Cortés, Fabián Querol, Fanny D. Cartes, Gabriel Muñoz","doi":"10.24039/RNH20211511028","DOIUrl":"https://doi.org/10.24039/RNH20211511028","url":null,"abstract":"The knowledge of the parasites community in marine fish is extensive. However, there is scarce information about their parasites in several fish species, such as the case of Patagonotothen tessellate (Richardson, 1845), which is a fish widely distributed and abundant on the Patagonia. The aim of this study was to determinate the community composition of parasites in P. tessellata and to establish the role of the host sex in the composition of parasites through population and community descriptors of parasites. In January 2018, 118 specimens of P. tessellata were collected from two nearby locations, Prat bay and Remota bay, Puerto Natales, Austral Chile. From the fish sample, 13 parasite species were recovered, mostly from the Phyla Nematoda and Acanthocephala. As a result, the nematode Pseudodelphis sp. followed by the acanthocephalan Hypoechinorhynchus magellanicus (Szidat, 1950) were those with the highest prevalence (78,8% y 53,4% respectively) and abundance (7,18 ± 17,95 y 7,30 ± 15,21 respectively). Male and female hosts had similar body sizes and positive correlation between weight-length, also, no significant differences were observed in the composition and parasite load. Besides, there is no connection between the fish sex and its parasitic composition, because there were no significant differences in the prevalence or in the average abundance of the parasite species between the sexes of the host. These results indicate that males and females of P. tessellata share the same habitats and have the same diet, therefore, the fishes are exposed to the same parasitic species and in the same environmental conditions.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122149625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CAUDOTYLENCHUS INDICUS N. GEN. N. SP. (NEMATODA: TELOTYLENCHIDAE) ASOCIADO CON PLANTA DE BANANO DE BENGALA OCCIDENTAL, INDIA","authors":"Subhankar Dey, Biplob Kumar Modak, Viswa Venkat Gantait","doi":"10.24039/RNH20211511027","DOIUrl":"https://doi.org/10.24039/RNH20211511027","url":null,"abstract":"Caudotylenchus n. gen. is a newly erected nematode genus under the subfamily Telotylenchinae of the family Telotylenchidae with the type species Caudotylenchus indicus n. gen., n. sp. All the members belonging to this subfamily are plant-parasitic in nature and the current species has been described from West Bengal, India in association with banana (Musa paradisiaca L. cv Chapa). Caudotylenchus indicus n. gen., n. sp. is a small nematode species, measures 0.68-0.85 mm; characterized by inverted club shaped, overlapping oesophageal gland; narrow, rounded-conoid, continuous, feebly sclerotized lip region; long stylet with well-developed basal knob, conus and straight lumen; lateral fields marked with five incisures; didelphic, amphidelphic ovary; transverse slit-like vulva; unannulated female tail terminus; simple bursa; and forwardly directed gubernaculum. A taxonomic key of the new genus and the compendium amongst thirteen genera of the subfamily are provided here.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116141607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PREVALENCIA E IDENTIFICACIÓN DE MOLUSCOS LYMNEIDOS TRANSMISORES DE FASCIOLA HEPATICA LINNAEUS, 1758 (PLATYHELMINTHES, TREMATODA), EN LA COMUNIDAD SAN MARTÍN DE LA PARROQUIA COLUMBE, CANTÓN COLTA, PROVINCIA DE CHIMBORAZO, ECUADOR","authors":"Juan Ríos-Granizo, Ángel Villavicencio-Abril, Rocío Guamán-Guamán, Santiago Ulloa-Cortázar, Edison Medina-Suescun","doi":"10.24039/RNH20211511025","DOIUrl":"https://doi.org/10.24039/RNH20211511025","url":null,"abstract":"Fasciolasis is a disease that causes economic losses in the livestock sector, with an estimated value of 3,000 million dollars annually worldwide, it is caused by Fasciola hepatica Linnaeus, 1758, which causes serious liver damage to grazing animals. This disease needs an intermediate host, who can only be the mollusks of the Lymnaeidae family and a definitive host (grazing animals or man). The objective of the research was to identify the Lymneid mollusks transmitting F. hepatica in San Martin of the Columbe parish, Chimborazo province, Ecuador to describe the morphological characteristics of the mollusks, establish the characteristics of the biotopes and determine the prevalence of both in mollusks infested with larval stages of the parasite, cattle parasitized with F. hepatica . A field sampling was carried out and information was collected to characterize the biotope, the morphological characteristics of the mollusks found in the study area, consequently, the prevalence of larval stages of F. hepatica in mollusks and of the parasite in the bovine population. , the results were with respect to the biotope, it was found in a high Andean community at 3152 masl, average temperature of 8 ° C, soil with a pH of 6, the soil was found covered by Kikuyo plant species ( Pennisetum clandestinum Hochst. ex Chiov, 1903), followed by dandelion ( Taraxacum officinale (L.) Weber ex FHWigg. 1780), forage plantain ( Plantago sp. Linnaeus, 1753) and watercress ( Nasturtium officinale WT Aiton, 1812), with presence of wetlands. The morphometry of the shell and the reproductive system are closely related to the species Galba cousini Jousseaume, 1887. The percentage of infested mollusks was quantified at 57% and the prevalence in bovines was 85%. The mollusk population corresponds to G. cousini , the studied scenario turned out to be optimal for the development of the biological cycle of F. hepatica .","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"39 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132059692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NUEVOS PECES DULCEACUICOLAS HOSPEDEROS DE LARVAS DE GORDIACEOS (NEMATOMORPHA) EN EL SUR DE CHILE","authors":"Patricio Torres-Hevia","doi":"10.24039/RNH20211511026","DOIUrl":"https://doi.org/10.24039/RNH20211511026","url":null,"abstract":"Nematomorpha Vejdovsky, 1886 includes most of its species in the taxon Gordiida, presenting a freshwater free-living adult and a parasitic larval stage that live in some aquatic invertebrates, amphibians and fish. Present results documented morphological characteristics of  unencysted and encysted larvae of gordiids in the intestines of two new freshwater fish hosts,  Aplochiton zebra Jenyns, 1842 (Osmeriformes, Galaxiidae) and Trichomycterus areolatus Valenciennes, 1846 (Siluriformes: Trichomycteridae), in the south of Chile.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129612732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DIOCTOPHYMA RENALE (GOEZE, 1782) COLLET- MEYGRET, 1802 (DIOCTOPHYMATIDAE) EM GALICTIS CUJA (MOLINA, 1782) (MUSTELIDAE) NO RIO GRANDE DO SUL, BRASIL","authors":"T. C. Pesenti, C. S. Mascarenhas, C. Krüger, A. L. Sinkoc, A. Albano, M. A. Coimbra, G. Müller","doi":"10.24039/RNH2012621021","DOIUrl":"https://doi.org/10.24039/RNH2012621021","url":null,"abstract":"O objetivo do trabalho foi registrar a ocorrencia de Dioctophyma renale (Goeze, 1782) Collet-\u0000Meygret, 1802, em Galictis cuja Molina, 1782 no sul do Brasil. Tres especimes de G. cuja foram\u0000encontrados mortos por atropelamento em rodovias no municipio de Pelotas, Estado do Rio Grande\u0000do Sul, Brasil e encaminhados ao laboratorio de Parasitologia de Animais Silvestres da Universidade\u0000Federal de Pelotas. Os helmintos foram coletados dos rins e cavidade abdominal com intensidade\u0000media de infeccao de 4,66 helmintos/hospedeiro. No Brasil, D. renale foi relatado parasitando G.\u0000cuja somente no Estado do Parana. Registra-se a primeira ocorrencia de D. renale em G. cuja no\u0000Estado do Rio Grande do Sul, Brasil.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122689681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PHYSA MARMORATA (MOLLUSCA: PHYSIDAE) COMO HOSPEDEIRO INTERMEDIÁRIO DE ECHINOSTOMA EXILE (TREMATODA: ECHINOSTOMATIDAE) NO BRASIL","authors":"H. A. Pinto, A. L. Melo","doi":"10.24039/RNH2012621020","DOIUrl":"https://doi.org/10.24039/RNH2012621020","url":null,"abstract":"EnglishEchinostome cercariae with 45 collar spines were found in Physa marmorata Guilding, 1828 collected in a water body located in Belo Horizonte, Minas Gerais, Brazil. Metacercariae were obtained experimentally in Biomphalaria glabrata (Say, 1818) and used to perform the infection of Columba livia Gmelin, 1789. Adult parasites recovered in the small intestine of the pigeons at 14 days after infection were identified as Echinostoma exile Lutz, 1924. The morphology of cercaria of E. exile is described for the first time and P. marmorata is reported as the natural first intermediate host of the parasite. portuguesCercarias do tipo equinostoma apresentando colar cefalico com 45 espinhos foram encontradas em Physa marmorata Guilding, 1828 coletadas em colecao aquatica localizada em Belo Horizonte, Minas Gerais, Brasil. Metacercarias obtidas experimentalmente em Biomphalaria glabrata (Say, 1818) foram utilizadas para a infeccao de Columba livia Gmelin, 1789. Parasitos adultos recuperados do intestino delgado das aves aos 14 dias apos a infeccao foram identificados como Echinostoma exile Lutz, 1924. As caracteristicas morfologicas das cercarias de E. exile sao descritas pela primeira vez e P. marmoratae relatada como o primeiro hospedeiro intermediario natural do parasito.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127868997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRIMER REPORTE DE NEMATODES PARÁSITOS DE PHYSALAEMUS ALBONOTATUS (STEINDACHNER, 1864) (ANURA: LEIUPERIDAE) DE CORRIENTES, ARGENTINA","authors":"Cynthya Elizabeth González, M. I. Hamann","doi":"10.24039/RNH2012621005","DOIUrl":"https://doi.org/10.24039/RNH2012621005","url":null,"abstract":"Thirty-four adults of Physalaemus albonotatus (20 males and 14 females) were collected near the city of Corrientes, Province of Corrientes, Argentina (27°28'S - 58°50'W) between January 2001 and September 2004. Adults of four nematode species, Strongyloides sp., Oswaldocruzia sp., Cosmocerca podicipinus, Cosmocerca parva and larvae of two other species, Spiroxys sp. and Physaloptera sp. were recovered from the digestive tract, lungs and gastric mucosa. We present morphologic characters (some with scanning electron microscopy), morphometric information and range extensions for these nematode species. This is the first report of nematode parasites of P. albonotatus from Argentina.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116411827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}