Reinaldo José Da Silva

Reinaldo José Da Silva
São Paulo State University | Unesp · Department of Parasitology

PhD.

About

302
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2,687
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January 2001 - January 2017
São Paulo State University
Position
  • Professor (Full)

Publications

Publications (302)
Article
Historically, amphibian parasites have been poorly represented in ecological studies, hence, we know little about their diversity, distribution, and role in biological communities. The helminth fauna of four amphibian species (Dermatonotus muelleri, Leptodactylus vastus, Rhinella diptycha, and Trachycephalus typhonius) from three locations in the s...
Article
Purpose: We describe two new species of Myxobolus (Myxobolidae) found parasitizing Mugil curema from two locations in Brazil: Myxobolus curemae n. sp. from gill arch and rays and Myxobolus maceioensis n. sp. from gill lamellae. Methods: We based the descriptions on myxospore morphology, histology, and small-subunit ribosomal DNA sequences. Resu...
Article
Although Brazil is a hotspot for snake species, there is a lack of information on the biodiversity of haemoparasites infecting these hosts. Thus, the present study aimed to bring new insights about the diversity of species of Hepatozoon (Apicomplexa: Adeleorina: Hepatozoidae) infecting Brazilian snakes from the Midwest and Southeast regions. The sn...
Article
The allocreadiid trematode Wallinia brasiliensis Dias, Müller, Almeida, Silva, Azevedo, León & Abdallah, 2018 is redescribed herein based on integrative taxonomy approach using morphological and molecular data from seven adult specimens found in the digestive tract of the yellow-tail lambari, Astyanax lacustris (Lütken, 1875), sampled in Pardo Rive...
Article
About forty-two species of Myxobolus have been previously described to parasitize characiform fishes in South America. Here, we described a new myxozoan species, Myxobolus parodontidis n. sp., in the gills of Apareiodon piracicabae (Characiformes, Parodontidae) from the streams of the Middle Paranapanema River basin, Brazil. The proposed new specie...
Article
We describe Myxobolus cataractae n. sp., found parasitizing Imparfinis mirini from Cachoeirinha stream, a tributary of Pardo River, Paraná River basin, municipality of Botucatu, São Paulo State, Brazil. We based the description on myxospore morphology, histology, and small subunit ribosomal DNA partial sequences. Whitish and elongated mass of myxos...
Article
Urocleidoides spp. are reported from the gills of 20 specimens of Parodon nasus (standard length 8.5-12 cm), from the Indiana stream, Tietê River, Upper Paraná River basin, municipality of Botucatu, São Paulo State, Brazil. Urocleoidoides tenuis and two new species were found. Urocleidoides indianensis n. sp. differs from its congeners mainly by th...
Article
A new nematode species, Rhabdochona (Rhabdochona) fuscovaria sp. n. (Rhabdochonidae), is described based on specimens collected from the stomach of the snouted treefrog Scinax fuscovarius (Hylidae) in the São Sebastião do Paraíso farm, municipality of Boa Esperança do Sul, southeastern Brazil. This species is characterized by deirids small, simple...
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Numerous pseudoplasmodia containing myxospores belonging to the genus Cystodiscus were found in the gallbladder of Elachistocleis cesarii from Mato Grosso State, Brazil. Herein, we describe Cystodiscus elachistocleis sp. nov., using morphological and small subunit ribosomal DNA sequences. The mature myxospores were ellipsoid to ovoid, measuring in...
Article
Purpose: We describe two new Henneguya spp. (Myxobolidae) found parasitizing Cyphocharax modestus from Pardo river, Paraná river basin, municipality of Botucatu, São Paulo State, Brazil: Henneguya fastigata n. sp. from gill lamellae and Henneguya pardensis n. sp. from gill arches. We based the descriptions on myxospore morphology, histology, and sm...
Article
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This is the first confirmed report of Pholeter gastrophilus infecting three delphinid species from Brazilian waters, Steno bredanensis, Tursiops truncatus, and Feresa attenuata. The worms were identified based on morphological and molecular data using the 28S rDNA and COI mtDNA genes. The present study increases the distribution area of this tremat...
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Myxosporidiosis is an infectious disease caused by myxozoans of the Phylum Cnidaria, Class Myxosporea, and Order Bivalvulida, considered a common parasite in fresh and saltwater fishes that parasitize many organs, especially gills. In the present study, 49 specimens of fishes belonging to eight genera: Tetragonopterus, Leporinus, Myleus, Pirinam...
Article
The present study describes three new species of monogenean parasites of characid fishes from the Upper Paraná River basin, Brazil: Characithecium paranapanemense n. sp. on Psalidodon paranae and Psalidodon bockmanni, Diaphorocleidus magnus n. sp. on Astyanax lacustris and Psalidodon fasciatus, and Diaphorocleidus neotropicalis n. sp. on Astyanax l...
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Quince ejemplares del sapo bufonido Rhinella icterica (Spix, 1824), 7 machos y 8 hembras, colectados en elmunicipio de Botucatu, Estado de São Paulo, Brasil, desde marzo del 2002 hasta enero del 2003, fueronanalizados en busca de helmintos parásitos. Todos los sapos estaban infectadas con al menos un parásito(prevalencia global = 100%). Cinco espec...
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Este estudio tuvo como objetivo evaluar la infección por metacercanias de Austrodiplostomum compactum (Lutz, 1928) en los ojos de Geophoagus proximus Castelnau, 1855 del río Tietê Nova Avanhandava medio Presa, Municipio de Buritama, Estado de São Paulo, Brasil. Los parásitos fueron recogidos de humor vítreo, fijados en solución AFA y teñidos con ca...
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PurposeTo date, seven species of Characithecium Mendonza-Franco, Reina and Torchin, 2009 (Monogenea, Dactylogyridae) are valid, parasitizing mainly fishes of the family Characidae (Characiformes) in the Neotropical region. During a parasitological study of fishes in the Batateiras River and Carás stream, Ceará state, Brazil, two species of Characit...
Article
The richness of metazoan endoparasites associated with 25 anuran species from a transitional area between Cerrado and Atlantic Rain Forest from Brazil is here presented. We present and discuss the type-host and localities, the current taxonomic status, remarks on morphological features, biological cycle, and new records of these parasites. Nine hun...
Article
Este estudio tuvo como objetivo identificar los helmintos parásitos de Spheniscus magellanicus Foster, 1781 de la municipalidad de Ilha Comprida, a lo largo de la costa sur de Sao Paulo, Brasil. Un total de 28 individuos fueron analizados, dando como resultado la identificación de tres especies de helmintos: Contracaecum pelagicum Johnston & Mawson...
Article
PurposeSpecies of Hepatozoon Miller, 1908 (Hepatozoidae) are blood protozoans with a cosmopolitan distribution and are reported to parasitize a range of vertebrate hosts including mammals, birds, reptiles, and amphibians. The present study aimed to describe a new species of Hepatozoon (Apicomplexa: Adeleorina: Hepatozoidae) found infecting the slee...
Article
Se llevó a cabo un estudio de los nematodos parásitos de nueve especies de peces de agua dulce del Río do Peixe, Estado de São Paulo, Brasil. Los peces fueron colectados entre febrero de 2010 y marzo de 2011 y las especies encontradas fueron: Procamallanus (Spirocamallanus) inopinatus y Contracaecum sp. (larva) en Astyanax altiparanae; Contracaecum...
Article
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Two digenean species, Infidum infidum Faria, 1910 (Dicrocoeliidae) and Travtrema stenocotyle Cohn, 1902 (Plagiorchiidae), were collected in the large pit viper Bothrops moojeni Hoge, 1966 from Reserva Particular do Patrimônio Natural Cisalpina, municipality of Brasilândia, Mato Grosso do Sul State, Brazil. In this study, we provide the first molecu...
Article
Myxozoans are microscopic cnidarians that mainly parasitize fishes. The present study aimed to describe a new myxozoan parasite from the gills of Boulengerella cuvieri (Spix and Agassiz, 1829) by morphological and molecular analysis. The fish was collected in 2019 at the Pindaíba River, municipality of Cocalinho, Mato Grosso State, Brazil. Whitish...
Article
El objetivo de esta investigación es presentar la ocurrencia de Styphlotrema solitaria Looss, 1899 en las tortugas marinas de la especie Eretmochelys imbricata Linnaeus 1758 encontradas en el litoral Norte del Estado de São Paulo, Brasil. Apenas nueve especímenes fueron encontrados en los hospederos analizados correspondiendo a una intensidad media...
Article
Se llevó a cabo un estudio de los nematodos parásitos de nueve especies de peces de agua dulce del Río do Peixe, Estado de São Paulo, Brasil. Los peces fueron colectados entre febrero de 2010 y marzo de 2011 y las especies encontradas fueron: Procamallanus (Spirocamallanus) inopinatus y Contracaecum sp. (larva) en Astyanax altiparanae; Contracaecum...
Article
Una nueva especie - Trinibaculum altiparanae sp. n. - se describe de las branquias de Astyanax altiparanae Garutti & Britski, 2000. Los peces fueron recolectados en el río Peixe en el municipio de Anhembi, São Paulo, Brasil, en marzo del 2010. Esta es la tercera especie del género Trinibaculum que se describe. La nueva especie se caracteriza por te...
Article
El objetivo del trabajo es registrar una nueva ocurrencia de Rhinoxenus bulbovaginatus en la cavidad nasal de Salminus hilarii del río Taquari, Estado de São Paulo, Brasil. Rhinoxenus bulbovaginatus fue originalmente descrita parasitando cavidades nasales en Salminus brasiliensis del río Paraná. Rhinoxenus spp. son monogéneos parásitos de las cavid...
Article
Durante un estudio parasitológico de anfibios semiacuáticos de la zona alto andina del Perú, 83 especímenes del género Telmatobius[T. jelskii (n= 56), T. marmoratus (n=17) y T. peruvianus (n=10)] fueron adquiridos de mercados de la ciudad de Lima, Perú donde se consume licuado de las ranas andinas con propósitos de medicina tradicional, durante los...
Article
Una nueva especie de Monogenea Trinibaculum pinctiarum n. sp. fue reportada parasitando las branquias de Astyanax fasciatus, conocido popularmente como "lambarí de rabo rojo", capturado en el río Paranapanema, reservatorio Jurumirim, São Paulo, Brasil. La nueva especie se asigna al género Trinibaculum por la presentación de una barra ventral doble...
Article
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The Amphibia are considered the most threatened vertebrate class globally, yet in Brazil they are also one of the more diverse and species rich groups. Although, in recent years there has been strong focus on amphibian related research, their parasites have not received the same attention. In Brazil, only a single species of Hepatozoon, namely H. l...
Article
We analyzed the distribution and ecological relationships in the parasitic infracommunities of four species of the genus Hypostomus: Hypostomus regani, Hypostomus strigaticeps, Hypostomus hermanni, and Hypostomus ancistroides, collected in the Batalha River, State of São Paulo, Brazil. Twenty-four parasite taxa were identified among myxozoans, mono...
Article
Aplectana longa n. sp. (Ascaridida: Cosmocercidae) from the small intestine of Gastrotheca microdiscus (Amphibia: Hemiphractidae) is described and illustrated. The new species is characterized by the combination of a unique set of morphological characters: 1) Large body size in both sexes; 2) Lateral alae absent; 3) Gubernaculum present, small, thi...
Article
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Wallinia caririensis n. sp. is described from the intestine of Astyanax bimaculatus (Linnaeus, 1758) (Characidae) collected in the Batateiras River in the municipality of Crato, Ceará state, Brazil. The description was based on integrative taxonomy approach using DNA sequences from the D1-D3 domains of the 28S rDNA gene. The new species was confirm...
Article
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Diversity of Creptotrema was investigated using morphological and molecular tools, including data for Creptotrema creptotrema (type-species). Three new species, parasites of Brazilian fishes, are described: Creptotrema conconae n. sp. (type-host, Imparfinis mirini Haseman), Creptotrema schubarti n. sp. (type-host, Characidium schubarti Travassos) a...
Preprint
Diversity, similarity, and host-parasite relationship in parasitic 13 infracommunities of Hypostomus spp. from the Tietê-Batalha river 14 basin, southeastern Brazil 15 Here we analyze the distribution and ecological relationships in the parasitic 16 infracommunities of four species of the genus Hypostomus: Hypostomus 17 regani, Hypostomus strigatic...
Article
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The Dactylosomatidae Jakowska and Negrelli, 1955 are one of four families belonging to adeleorinid coccidia and comprise the genera Babesiosoma Jakowska and Nigrelli, 1956 and Dactylosoma Labbé, 1894. These blood protozoa occur in peripheral blood of lower vertebrates, and are commonly reported parasitising amphibians. The present study describes D...
Article
A new species of the copepod genus Pseudovaigamus Amado, Ho & Rocha, 1984 is described herein based on parasitic adult females found attached to the gills of the freshwater teleost Pimelodus maculatus Lacepède, 1803, sampled in two tributaries (Veados and Paranapananema Rivers) of the Jurumirim Reservoir, Upper Paranapanema River, São Paulo State,...
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Background: Studies on intestinal parasites in cougars Puma concolor are scarce, and most of the available information on the species has been derived from individuals in captivity. One of the greatest threats to the survival of wild cats is habitat loss caused by urban sprawl, agricultural matrix, and linear developments such as highways and railw...
Article
A new nematode species of the Diplotriaenidae is described from the Neotropical region. The species was found infecting the body cavity of the snake Xenodon merremii (Wagler in Spix) collected in the municipality of Barbalha, Ceará State, Northeastern Brazil. Hastospiculum nordestinum n. sp. differs from the congeners by combining the following cha...
Article
We report for the first time the infection of dolphins with Ascocotyle longa found in the intestines of three different species, Sotalia guianensis, Steno bredanensis, and Tursiops truncatus gephyreus, which were found washed ashore along the southeastern and southern Brazilian coast. The worms were identified based on morphological and molecular d...
Article
Durante los estudios de helmintos parásitos de peces de agua dulce del arroyo Cubatão, se registró una nueva ocurrencia de Cucullanus (Cucullanus) pinnai pinnai parasitando Rhamdioglanis frenatus (Siluriformes, Heptapteridae). Este nematodo se ha registrado en varios especies huéspedes de diferentes localidades, siendo la mayoría Siluriformes y alg...
Article
Se presentan los resultados de un examen helmintológico realizado en un especímen de puercoespín Coendou bicolor (Tschudi, 1844), del departamento de San Martín, Perú. El helminto endoparásito encontrado fue Heligmostrongylus sedecimradiatus (Linstow, 1899) Travassos, 1917. La distribución geográfica de Heligmostrongylus sedecimradiatus fue ampliad...
Article
Rhabdias pocoto n. sp. is herein described from the lungs of the swamp frog Pseudopaludicola pocoto Magalhães, Loebmann, Nogueira, Kokubum, Baptista, Haddad & Garda, 2014, from the Caatinga biome in the state of Ceará, in northeastern Brazil. The new species is characterized by a body that dilates posteriorly, six small lips (protuberances) and two...
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Fish farming can have a negative impact on water quality and aquatic organisms due to emerging blooms of Cyanobacteria and the production of cyanotoxins. In this study, the effect of aquaculture in hydroelectric reservoirs in Brazil was evaluated in six fish farms and in upstream and downstream water through analysis of the microbiome, Cyanobacteri...
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This study described the hepatobiliary anatomopathological lesions associated with trematode Platynosomum illiciens parasitism in Neotropical primates kept in captivity. In the evaluated organs, we observed portal fibrosis, biliary epithelial hyperplasia, and inflammatory reaction with a predominance of lymphocytes and plasmocytes, and in some case...
Article
Purpose: To describe three new species of Cosmetocleithrum in the gills of Trachelyopterus galeatus (Siluriformes, Auchenipteridae) from Aguapeí River, Upper Paraná River basin, São Paulo State, Brazil. Methods: Fifty-three specimens of T. galeatus were captured in the mouth of the Aguapeí River from August 2013 to June 2014. Monogeneans were mo...
Article
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Seven new species of Urocleidoides from the gills and skin of nine Neotropical fish hosts (Anostomidae, Parodontidae, and Gymnotidae) are described: Urocleidoides digitabulum n. sp. on Leporinus friderici, Leporinus octofasciatus, and Megaleporinus elongatus (Anostomidae); Urocleidoides solarivaginatus n. sp. on L. friderici, L. octofasciatus, and...
Article
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Metacercariae of Diplostomidae are widely distributed in America and may cause diplostomiasis, an ocular disease in fishes. The aim of this study is to report the occurrence of metacercariae of Austrodiplostomum compactum in Plagioscion squamosissimus (non-native fish species) from Nova Avanhandava Reservoir, Tietê River, Brazil and an explanation...
Article
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La diversidad de los helmintos en los grupos de huéspedes con gran diversidad de especies como los anfibios anuros siguen estando subrepresentados, especialmente en sitios con condiciones ambientales severas como las regiones áridas y semiáridas. Este conocimiento es necesario para comprender el papel de los parásitos en los diferentes niveles de l...
Article
Cosmocercidae nematodes are common parasites of amphibians and reptiles. Although it is a well-known family, knowledge about its host diversity is lacking. Herein, we expand the knowledge of the anuran parasitic fauna of the family Hylodidae and the geographic distribution of three species of cosmocerciid nematodes (Cosmocerca brasiliensis Travasso...
Article
Purpose To describe, based on morphological features, a new copepod species of Rhinergasilus, Rhinergasilus unguilongus n. sp., collected from gills of the Streaked prochilod, Prochilodus lineatus (Valenciennes, 1837), sampled in the Veados and Paranapanema Rivers, two tributaries of the Jurumirim Reservoir (Upper Paranapanema River, Paraná River B...
Article
Habitats characterized by geographic isolation such as islands have been studied using different organisms as models for understanding the dynamic and insular patterns of biodiversity. Determinants of parasite richness in insular host populations have been conducted mainly with mammals and birds, showing that parasite richness decreases in insular...
Article
Neste trabalho, registramos a ocorrência e novos dados morfológicos de Tereancistrum paranaensis Karling, Lopes, Takemoto & Pavanelli, 2014 coletados das brânquias de Schizodon intermedius Garavello and Britski, 1990 do rio dos Veados, município de Itatinga, Estado de São Paulo, Brasil. Nossos espécimes apresentam diferenças em relação aos espécime...
Article
Registramos Histiostrongylus coronatus Molin, 1861 no intestino delgado de Phyllostomus discolor Wagner, 1843 (Phyllostomidae). O helminto foi descrito baseado apenas em uma fêmea adulta, porém esta apresentou caraterísticas morfológicas compatíveis com descrições prévias da espécie. O presente trabalho amplia a ocorrência geográfica do parasito pa...
Article
Neste estudo, 41 espécies de Monogenea foram registradas parasitando as brânquias, superfície corporal e cavidade nasal de peixes Characiformes do Estado de São Paulo, Brasil. Os hospedeiros foram coletados no rio Batalha e no rio do Peixe entre 2010 e 2015. As espécies de monogenéticos registrados foram: Anacanthorus sciponophallus Van Every & Kri...
Article
La finalidad de este estudio fue evaluar el componente comunitario de los metazoos parásitos del geckocasero tropical Hemidactylus mabouia (Moreau de Jonnès, 1818) de la selva del Perú. Se colectaron en siete localidades de San Martín y de Huánuco, noventa y un especímenes de H. mabouia durante abril a junio del 2015. Los parásitos fueron colectado...
Article
The aim of the present study was to record the occurrence of parasites in Cambeva davisi (= Trichomycterus davisi) (Siluriformes: Trichomycteridae) from the Cascavel Stream, in the Iguaçu River basin, municipality of Cascavel, state of Paraná, Brazil, and present a review of the parasites reported infecting trichomycterids belonging to Cambeva and...
Article
Inventários parasitológicos de anfíbios da região semiárida contribuem para conhecer a diversidade de parasitas associados a espécies da região Nordeste. Este trabalho tem como objetivo fornecer informações sobre a diversidade de parasitas associados a Proceratophrys aridus Cruz, Nunes & Juncá, 2012 e descrever e comparar a helmintofauna deste hosp...
Article
A parasitological survey of fishes from two tributaries (Veados and Paranapananema Rivers) of the Jurumirim Reservoir, Upper Paranapanema River, São Paulo State, Brazil, was carried out a during a sampling survey in 2011 and 2012. Several ectoparasitic copepods were found inside the nostrils of the freshwater anostomid fish, Schizodon intermedius G...
Article
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A new species of Creptotrematina Yamaguti, 1954 was collected from characid fishes, Astyanax fasciatus (Cuvier, 1819) and Astyanax lacustris Lucerna & Soares, 2016 from the Batalha River in the State of Sao Paulo, Brazil. The new species most closely resembles Creptotrematina aguirrepequenoi , but differs by the elongated shape of vitelline follicl...
Article
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Deforestation can compromise ecological processes and biotic interactions, including the host-parasite relationship. While some parasites infect only one host, others require multiple hosts to complete their complex life cycles. In this context, different parasites may have different demands and traits and may have specific responses to habitat deg...
Article
En este artículo se describe e ilustra a Cosmocerca gymnophthalmicola n. sp., un parásito intestinal de los lagartos gimnoftálmidos Alopoglossus angulatus (Linnaeus, 1758) y Cercosaura eigenmanni (Griffin, 1917) del oeste de Brasil. Cosmocerca gymnophthalmicola n. sp. representa la 31ª especie asignada al género, y la 11a en la región Neotropical....
Article
We investigated the mean abundance of helminths and analyzed helminth composition and structure at the infracommunity and component community levels for 3 anuran species (Pleurodema diplolister, Rhinella jimi, and Rhinella granulosa) from the Caatingas, a semiarid Brazilian region characterized by accentuated seasonality and unpredictability of rai...
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Fishes of the order Siluriformes, known as catfishes, have a global distribution with more than 3,600 valid species of which 2,087 occur in the Neotropical region. Despite being highly diverse, abundant, and of economic importance as food and ornamental fishes, knowledge about the diversity and distribution of their helminth parasites is fragmentar...
Article
Digeneans of the genus Ogmogaster Jägerskiöld, 1891 are intestinal parasites of whales and pinnipeds. Due to the difficulty in recovering these parasites from opportunistic stranding events of their hosts, very little morphological and molecular data are available on the species of this genus. During a beach monitoring survey on the Southern Brazil...
Article
Purpose To describe a new species of a parasitic copepod, Rhinergasilus digitus n. sp. (Cyclopoida, Ergasilidae), collected from the gills of the red-tailed lambari Astyanax fasciatus (Characiformes, Characidae) in two tributaries of the Jurumirim Reservoir (Upper Paranapanema River), São Paulo State, Brazil: Ribeirão dos Veados and Paranapanema Ri...
Article
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On the basis of morphological and molecular analyses, a new myxozoan parasite is described from the gills of the fish Hoplerythrinus unitaeniatus, collected in the municipality of Nova Xavantina, Mato Grosso State, Brazil. Plasmodia of Henneguya unitaeniata sp. nov. were oval and whitish and were found surrounded by collagen fibers forming plasmodi...
Article
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This work aims to provide information about the diversity of parasites associated with Proceratophrys aridus Cruz, Nunes & Juncá, 2012 and to describe and compare the helminth fauna of this host to the other inventoried species of the genus. The specimens were manually collected between 2012 and 2016 in ten localities of Northeast Brazil. A total o...
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Brazil is a megadiverse country and is participant of fundamental environmental agreements for biodiversity conservation. However, the internal politics and the cultures that affect negatively the ecological integrity in Brazilian freshwater need to be improved on the condition of sustainable management. Scientific community , the government and st...