Produção Nacional
Marília de Carvalho Brasil-Sato, Gilberto Cezar Pavanelli,
Ecological and reproductive aspects of Neoechinorhynchus pimelodi Brasil-Sato & Pavanelli, 1998, in Pimelodus maculatus Lacépède, 1803 collected in the São Francisco river during periods of drought (July 1995 and 1996) and floodings (January 1996 and 1997) of this river basin are provided. In tropical regions where the amount of rainfall alters the hydrological regimen of limnological systems water temperature has not had an important role in infections of N. pimelodi in P. maculatus. Prevalence was ...
Tópico(s): Fish biology, ecology, and behavior
1999 - Sociedade Brasileira de Zoologia | Revista Brasileira de Zoologia
Produção Nacional
Revisado por pares
J. C. Eiras, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto, Yukifumi Nawa,
Along with globalization of traveling and trading, fish-borne nematodiases seems to be increasing in number. However, apart from occasional and sporadic case reports or mini-reviews of particular diseases in particular countries, an overview of fish-borne nematodiasis among travelers have never been performed. In this review, we gathered fish-borne nematodiasis among travelers for recent 25 years by an extensive global literature survey using appropriate keywords, e.g. travelers diseases, human ...
Tópico(s): Travel-related health issues
2018 - Korean Society for Parasitology | Korean Journal of Parasitology
Produção Nacional
Revisado por pares
J. C. Eiras, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto, Yukifumi Nawa,
Fish-borne zoonotic nematodes may infect humans when fish or squid are ingested raw or inadequately cooked. Human infections may have serious consequences, including the unexpected deaths of infected people. This kind of disease is poorly known in general, and the characteristics of such infections in South American countries as a whole have never been assessed. In this paper the present status of fish-borne nematodiases in humans in South American countries is characterized. Potentially zoonotic ...
Tópico(s): Parasitic Diseases Research and Treatment
2017 - Cambridge University Press | Journal of Helminthology
Produção Nacional
Revisado por pares
J. C. Eiras, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto, Mirian Ueda Yamaguchi, L.C. Karkling, Yukifumi Nawa,
A literature survey identified a variety of potentially zoonotic fish-borne nematode species in both marine and freshwater hosts which are common throughout Brazil. The few cases of fish-borne zoonotic nematodioses reported in humans in Brazil are summarized, and the possible routes of infection are discussed, such as the importance of restaurants specialized in dishes containing raw or undercooked fish. The difficulties of diagnosing of human infections with fish-borne nematodes in Brazil are reviewed. ...
Tópico(s): Parasitic Diseases Research and Treatment
2016 - Elsevier BV | Food and Waterborne Parasitology
Produção Nacional
Revisado por pares
Fabrício Hiroiuki Oda, Claudio Borteiro, Rodrigo Junio da Graça, Luiz Eduardo Roland Tavares, Alejandro Crampet, Vinícius Guerra, Flávia S. Lima, Sybelle Bellay, Letícia Cucolo Karling, Oscar Castro, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Spargana are plerocercoid larvae of cestode tapeworms of the genus Spirometra, Family Diphyllobothriidae, parasitic to frogs, reptiles, birds and mammals. This parasitic disease in humans can be transmitted through the use and consumption of amphibians and reptiles. The available knowledge about Spirometra in South America is scarce, and there are only a few reports on the occurrence of sparganum in amphibians and reptiles, many of them published in old papers not easily available to researchers. ...
Tópico(s): Bird parasitology and diseases
2016 - Elsevier BV | Acta Tropica
Produção Nacional
Revisado por pares
José L. Luque, Fabiano Matos Vieira, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli, J. C. Eiras,
Here we provide a checklist of the crustacean species parasitizing both marine and freshwater fishes from Brazil. We list a total of 134 species of parasitic crustaceans associated with 205 species of fishes in Brazil. The data from this study added to the checklist of Copepoda in Brazilian fishes published in 2007 give a total of 251 species of parasitic crustaceans associated with 279 fish species currently known in Brazil. The majority of species of Crustacea listed as parasites of Brazilian ...
Tópico(s): Bird parasitology and diseases
2013 - Pensoft Publishers | Check List
Produção Nacional
Revisado por pares
Ana Carolina Figueiredo Lacerda, Ricardo Massato Takemoto, Robert Poulin, Gilberto Cezar Pavanelli,
Tópico(s): Parasites and Host Interactions
2012 - Springer Science+Business Media | Parasitology Research
Produção Nacional
Revisado por pares
J. C. Eiras, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli, José L. Luque,
Provided is a list of the protozoan parasites of freshwater and marine fishes from Brazil. This report includes informationabout the site of infection, host habitat, localities and references of 100 parasite species (1 amoeba, 70 flagellates, 13 api-complexa and 16 ciliates) distributed among 112 different host species, mainly from freshwater. It is concluded that thediversity of protozoan parasites from Brazilian fish is understudied, and it is suggested that appropriate measures be taken in the ...
Tópico(s): Myxozoan Parasites in Aquatic Species
2012 - Q15088586 | Zootaxa
Produção Nacional
Revisado por pares
Ana Carolina Figueiredo Lacerda, Ricardo Massato Takemoto, Marcos Tavares‐Dias, Robert Poulin, Gilberto Cezar Pavanelli,
Biological invasions are considered a major threat to biodiversity around the world, but the role of parasites in this process is still little investigated. Here, we compared parasite infections of a host species in the areas where it originated and where it was introduced, and in native and introduced species in the same environment, using the endoparasites of the fish Plagioscion squamosissimus (Sciaenidae) in 3 Brazilian basins. Samples were taken in 2 rivers where the species is native, i.e., ...
Tópico(s): Helminth infection and control
2012 - American Society of Parasitologists | Journal of Parasitology
Produção Nacional
Revisado por pares
Letícia Cucolo Karling, A. Isaac, Igor de Paiva Affonso, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Abstract The aim of the present study was to detect changes in the structure of the helminth parasite infracommunities in Salminus brasiliensis (Cuvier 1816) from the floodplain of the upper Paraná River after construction of the Porto Primavera Hydroelectric Plant. A total of 126 fish in the period before the dam's construction and 56 specimens 10 years after this event were analysed. Three species of parasites were collected before the construction of the dam: Prosthenhystera obesa Diesing, 1850 ( ...
Tópico(s): Fish biology, ecology, and behavior
2012 - Cambridge University Press | Journal of Helminthology
Produção Nacional
Revisado por pares
Gislaine Guidelli, Washington Luiz Gomes Tavechio, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Individuals of four species of Leporinus were captured in the floodplain of the Upper Paraná River and their metazoan parasites were collected. Fifty-eight taxa of ectoparasites and endoparasites were recorded: 31 in Leporinus lacustris, 32 in Leporinus friderici, 28 in Leporinus obtusidens and 25 in Leporinus elongatus. The aim of this paper was to study the relationship between the host's condition and the parameters of infrapopulations and infracommunities. The health of the host was represented ...
Tópico(s): Fish biology, ecology, and behavior
2010 - Elsevier BV | Veterinary Parasitology
Produção Nacional
Revisado por pares
Fábio Hideki Yamada, Ricardo Massato Takemoto, Sybelle Bellay, Gilberto Cezar Pavanelli,
Abstract Two new species of Sciadicleithrum are described from the gills of Neotropical cichlid fishes collected from Paraná River, Brazil. Sciadicleithrum satanopercae sp. nov. is described from the gills of Satanoperca pappaterra and differs from congeners by having a dorsal anchor with the distal portion complex and the inner margin with a “denticulum” between shaft and point. Sciadicleithrum joanae sp. nov. is described from the gills of Crenicichla niederleinii and C. britskii collected from ...
Tópico(s): Bird parasitology and diseases
2009 - Springer Science+Business Media | Acta Parasitologica
Produção Nacional
Revisado por pares
Leticia Moreira, Ricardo Massato Takemoto, Fábio Hideki Yamada, Tiago Lopes Ceschini, Gilberto Cezar Pavanelli,
Abstract We examined 44 specimens of Metynnis lippincottianus (Cope, 1870) (Characidae), collected in the Upper Paraná River floodplain, Brazil, from March 2006 to December 2007. Of the total number of fishes, 32 (72.7 %) were infected by at least one species of helminth (endoparasites). One digenean, Dadayus pacupeva, and four nematode species, Spinoxyuris oxydoras, Contracaecum sp. (larval stage), Procamallanus (Spirocamallanus) inopinatus and Raphidascaris (Sprentascaris) mahnerti were identified. D. pacupeva ...
Tópico(s): Parasite Biology and Host Interactions
2009 - De Gruyter Open | Helminthologia
Luís Henrique de Aquino Moreira, Fábio Hideki Yamada, Tiago Lopes Ceschini, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
The study analyzed 84 specimens of Metynnis lippincottianus (Cope, 1870) (Characidae) from two environments with different degrees of impact due to a hydroeletric plant; 44 hosts from the upper Parana river floodplain (low degree of impact) and 40 from Paranapanema tributaries (Corvo and Guairacá rivers, high degree of impact).The prevalence found, among the total collected fishes, was 77.4%.One digenetic species, Dadayus pacupeva, and four nematodes, Spinoxyuris oxydoras, Contracaecum sp.(larval stage), ...
Tópico(s): Fish Biology and Ecology Studies
2009 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Produção Nacional
Revisado por pares
Fábio Hideki Yamada, Luís Henrique de Aquino Moreira, Tiago Lopes Ceschini, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Austrodiplostomum compactum (Platyhelminthes: Digenea) parasita os olhos de várias de espécies de peixes. A presença deste parasito, em casos extremos, pode causar exoftalmia, deslocamento da retina, opacidade do cristalino e cegueira ou até a morte. O presente estudo registra novas ocorrências desta metacercária infectando os olhos de quatro novos hospedeiros de peixes, Serrasalmus maculatus coletado no reservatório de Rosana no rio Paranapanema e Hypostomus regani, Schizodon borellii e Auchenipterus ...
Tópico(s): Fish biology, ecology, and behavior
2008 - Colégio Brasileiro de Parasitologia Veterinaria | Revista Brasileira de Parasitologia Veterinária/Brazilian Journal of Veterinary Parasitology
Produção Nacional
Revisado por pares
Maria de los Angeles Perez Lizama, Ricardo Massato Takemoto, María José Tavares Ranzani-Paiva, Luis Marques da Silva Ayroza, Gilberto Cezar Pavanelli,
Piaractus mesopotamicus (Holmberg, 1887) is one of the most abundant native species in fish farmings in Brazil. This study was conducted in three fish farmings in São Paulo State, during February and December, 2004. Eighty-three specimens (92.2%) were parasitized by at least one parasite species. Eight species of ectoparasites were registered. Anacanthorus penilabiatus, A. spatulathus and Mymarothecium sp. 2 were classified as centrals, and Mymarothecium sp. 1 as secondary. Other species were considered ...
Tópico(s): Fish Biology and Ecology Studies
2008 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
J. C. Eiras, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
This paper describes the species Henneguya caudicula n. sp. that infects the gills of Leporinus lacustris Amaral Campos, 1945 (Osteichthyes, Anastomidae) from the Parana river, Brazil. The parasites belong to the intralamellar-vascular type as defined by Molnar (2002). The total length of the spore was 14.7 (14-16) μm, the spore body was ellipsoidal in frontal view and biconvex in lateral view, and measured 11.3 (11-12) μm long by 5.4 (5-6) μm wide, and was 3.6 (3-4) μm thick. The polar capsules were ...
Tópico(s): Aquaculture disease management and microbiota
2008 - Wydawnictwo Uniwersytetu Jagiellońskiego | Acta Protozoologica
Produção Nacional
Revisado por pares
J. C. Eiras, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Tópico(s): Marine Ecology and Invasive Species
2008 - Elsevier BV | Veterinary Parasitology
Produção Nacional
Revisado por pares
Ana Carolina Figueiredo Lacerda, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
The present paper represents the first study on the endoparasitic fauna of Potamotrygon falkneri and P. motoro in the upper Paraná River floodplain. Fishes were collected by fishing rod and gillnetting in different stations of the floodplain, from March, 2005 to September, 2006. Parasites were sampled, fixed and preserved according to specialized literature. About half of the analyzed fish were parasitized by at least one of the following species of endoparasites: Clinostomum complanatum, Genarchella ...
Tópico(s): Helminth infection and control
2008 - Pensoft Publishers | Check List
Gislaine Guidelli, Washinhton Luiz Gomes Tavechio, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
The parasite fauna of Leporinus lacustris and Leporinus friderici from the Upper Paraná River floodplain, Brazil, was investigated aiming to make a comparison in terms of composition and structure of the communities. Usual methodologies in the study of parasite fauna were applied. Some patterns were observed, and the faunas can be considered similar in structure. The main difference in the parasite fauna was the use rate of the host by some shared parasite species, represented by abundance. This ...
Tópico(s): Fish Biology and Ecology Studies
2007 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Maria de los Angeles Perez Lizama, Ricardo Massato Takemoto, María José Tavares Ranzani-Paiva, Luis Marques da Silva Ayroza, Gilberto Cezar Pavanelli,
A total of ninety specimens of Oreochromis niloticus were collected every other month between February and December of 2004 at three fish farms in São Paulo State. 82.2% were parasitized by at least one species of parasite. Physical and chemical water parameters were used to characterize water quality in each fish farm. Seven species of ectoparasites were registered. It was possible to observe that all fish farms presented the same parasite fauna; however, each farm featured its own peculiar community ...
Tópico(s): Aquaculture Nutrition and Growth
2007 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Produção Nacional
Revisado por pares
Maria de los Angeles Perez Lizama, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
One hundred and forty-eight specimens of Prochilodus lineatus (Valenciennes, 1836) were collected on the Upper Paraná River floodplain, Brazil. Kritskyia boegeri presented significant differences in the abundance according to the host stage of gonadal maturity. Ergasilus sp. presented negative correlation between the GSR of the females and parasite abundance. K. boegeri presented negative correlation between the GSR of the males and abundance. Tereancistrum curimba and Saccocoelioides magnorchis ...
Tópico(s): Bird parasitology and diseases
2006 - Instituto de Tecnologia do Paraná (Tecpar) | Brazilian Archives of Biology and Technology
Produção Nacional
Revisado por pares
Alain de Chambrier, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Tópico(s): Bird parasitology and diseases
2006 - Springer Science+Business Media | Systematic Parasitology
Produção Nacional
Revisado por pares
Ricardo Massato Takemoto, Gilberto Cezar Pavanelli, M.A.P. Lizama, José L. Luque, Robert Poulin,
Abstract A comparative analysis of parasite species richness was performed across 53 species of fish from the floodplain of the upper Paraná River, Brazil. Values of catch per unit effort, CPUE (number of individuals of a given fish species captured per 1000 m 2 of net during 24 h) were used as a rough measure of population density for each fish species in order to test its influence on endoparasite species richness. The effects of several other host traits (body size, social behaviour, reproductive ...
Tópico(s): Genetic diversity and population structure
2005 - Cambridge University Press | Journal of Helminthology
Produção Nacional
Revisado por pares
A.P. Lizama M. De Los, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
149 specimens of Prochilodus lineatus were collected on the upper Paraná River floodplain. Of these, 121 (82.1 %) were parasitized. 33 species of metazoan parasites were recorded. Rhinonastes pseudocapsaloideum was classified as secondary, while all other species were classified as satellites. Ergasilus sp. and Tereancistrum curimba were positively associated and their abundances were positively correlated. Saccocoelioides magnorchis and S. nanii were positively associated and their abundances were ...
Tópico(s): Fish Biology and Ecology Studies
2005 - EDP Sciences | Parasite
Produção Nacional
Revisado por pares
P. M. Machado, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Tópico(s): Helminth infection and control
2005 - Springer Science+Business Media | Parasitology Research
Produção Nacional
Revisado por pares
J. C. Eiras, José Celso de Oliveira Malta, A. Varela, Gilberto Cezar Pavanelli,
A new histozoic species of myxosporean (Henneguya schizodon n. sp.) is described from the Amazon River teleost fish Schizodon fascialus Spix & Agassiz, 1892 (Characiformes, Anostomidae). The plasmodia, which showed asynchronous development, were located in the kidney of the host. The spore body was ellipsoidal and was 13.1 (12-14) µn long by 3.3 (3-4) µm wide. The total length of the spore was 28.9 (27-30) µm, and each valve had a caudal process measuring 16.3 (15-17) µm. The polar capsules were 5.4 (5-6) ...
Tópico(s): Microbial infections and disease research
2004 - EDP Sciences | Parasite
Priscila Gôngora Dias, Wilson Massamitu Furuya, Gilberto Cezar Pavanelli, Marion Haruko Machado, Ricardo Massato Takemoto,
Aiming to evaluate the effect of parasitic load of Rondonia rondoni over the condition factor of Pterodoras granulosus. Fifty one specimens of P. granulosus were collected in Paraná River, (Porto Rico/Paraná). To analyze were used: Student's "t", to determine if length of hosts males and females were similar; Mann-Whitney test "U", to determine the effect of sex of host on the intensity of infestion of the parasite; "G" Log-likelihood test, to determine the effect of sex of the host on the prevalence ...
Tópico(s): Fish biology, ecology, and behavior
2004 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Andréia Isaac, Gislaine Guidelli, Jakeline Galvão de França, Gilberto Cezar Pavanelli,
Parasites of 111 specimens of the Gymnotus genus were analyzed. The fishes were captured in bolters and gill nets. Sixteen parasite species were recorded, being 93.7% of the species found in larval stages. Significant positive association and correlation between abundances of twenty pairs of species occurred. All the analyzed parasite species had a clumped pattern in host sample. No dominance was reported among the parasite species. Diversity of the infracommunities of male and female hosts were ...
Tópico(s): Fish Biology and Ecology Studies
2004 - Editora da Universidade Estadual de Maringá (Eduem) | Acta Scientiarum Biological Sciences
Produção Nacional
Revisado por pares
Giacomo Maria Guidelli, A. Isaac, Ricardo Massato Takemoto, Gilberto Cezar Pavanelli,
Parasites of 136 specimens of Hemisorubim platyrhynchos, popularly called jurupoca, were analyzed. Fourteen parasite species were recorded: four digeneans (Crocodilicola pseudostoma, one Gorgoderidae species, Sanguinicola platyrhynchi, and Sphincterodiplostomum sp.); three cestodes (Goezeella paranaensis, Spatulifer maringaensis, and Mariauxiella piscatorum); five nematodes (Contracaecum Type 1 larvae of Moravec, Kohn, & Fernandes, 1993; Contracaecum Type 2 larvae of Moravec, Kohn, & Fernandes, 1993; Cucullanus ( ...
Tópico(s): Fish Biology and Ecology Studies
2003 - Instituto Internacional de Ecologia (Brazil) | Brazilian Journal of Biology