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| Thatcher,Vernon E.; Silva,Jayme de Loyola e; Jost,Glauco F.; Souza-Conceição,José M.. |
| Cymothoa catarinensis sp. nov. collected at Camboriú, Santa Catarina State, Brazil is described. The new species is of small size, has a cephalon that is little immersed in pereonite 1, anterolateral angles of pereonite 1 that reach or surpass the eyes and a pleon that is deeply immersed in pereonite 7. The pleopods of the new species have small, lobular accessory gills projecting from the bases. Cymothoa excisa Perty, 1830, and Cymothoa oestrum (Linnaeus, 1758) are redescribed. Both are of large size (25-35 mm in length). C. excisa has pointed anterolateral margins of pereonite 1 that reach or surpass the eyes. This species also has trilaminate pleopods in the female and bilaminate pleopods in the male. C. oestrum has rounded anterolateral margins of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Ocean; Brazil; Fish parasites; Marine isopods. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300028 |
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| Pelegrini, Larissa Sbeghen; Januário, Felipe Freitas; Azevedo, Rodney Kozlowisky de; Abdallah, Vanessa Doro. |
| The parasitic biodiversity of the Loricaria prolixa, an endemic fish from the Paraná and Prata basins was studied and analyzed the parasitic’s communities dynamics and their ecological relations with this host. Samples were collected in the Batalha River and 39 specimens were analyzed from 2014 to 2016. All fishes were parasitized. The component community was composed by twelve species with 8694 metazoan found on the surface, gills, eyes, brain, intestine and blood of the hosts. Demidospermus spirophallus, Diplostomidae gen. sp., Rhabdochona kidderi and Oligobdella sp. showed higher values for the parasitism's ecological descriptors, and were centrals and dominants species. The infracommunities were characterized by specific richness smaller in relation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.13.02.02-2; 2.13.01.02-6 catfishes; Fish parasites; Freshwater; Biological diversity. Helmintologia animal; Protozoologia parasitária animal. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36294 |
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| JANUÁRIO,FELIPE F.; GIÃO,THAYANA; AZEVEDO,RODNEY K. DE; ABDALLAH,VANESSA D.. |
| Abstract:Cichla ocellaris is native to the Amazon region. It is popularly known as tucunaré and is widely used for human consumption. It is difficult to breed in captivity due to its highly predatory habits, it is considered symbolic of sport fishing in Brazil. This study aimed to make a qualitative and quantitative survey of helminth parasites of C. ocellaris. Thirty specimens from the Jacaré-Pepira River, located in the municipality of Ibitinga, in the interior of the state of São Paulo, were studied. The river is located 13 km from the urban area and at an altitude of approximately 600 m. A total of four taxa of metazoan parasites were collected and identified in Cestoda, Digenea, Monogenea and Nematoda. The cestoid Proteocephalus macrophallus presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecology; Parasitic fauna; Tucunaré; Fish parasites. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300608 |
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| GOLZIO,JÉSSICA E.S.A.; FALKENBERG,JÚLIA M.; PRAXEDES,RAYSSA C.G.; COUTINHO,ANDERSON S.; LAURINDO,MYLENA K.; PESSANHA,ANDRÉ; MADI,RUBENS R.; PATRÍCIO,JOANA; VENDEL,ANA L.; SOUZA,GEZA T.R.; MELO,CLÁUDIA M.; LACERDA,ANA CAROLINA F.. |
| ABSTRACT Parasites are important components of communities and constitute great part of the biological diversity found in ecosystems, providing valuable information about their hosts and the environment in which they live. However, despite its importance, parasitic diversity is still not well known in some regions of Brazil, especially with respect to fish parasites in the Northeast Region. The present study aims to perform the survey of gill parasites of fish from two tropical estuaries located in northeastern Brazil: Paraíba and Mamanguape rivers. Two collections were made in each estuary, one during the dry period (November / 2013) and the other during the rainy season (July / 2014). The fish were caught using a beach seine net, dragged along the main... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish parasites; Parasite diversity; Ectoparasites; Tropical estuaries. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502281 |
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| Rocha,Rodrigo Severiano; Pelegrini,Larissa Sbeghen; Camargo,Aline de Almeida; Abdallah,Vanessa Doro; Azevedo,Rodney Kozlowiski de. |
| ABSTRACT: Geophagus brasiliensis is a freshwater cichlid distributed throughout the whole South America. It is a territorial fish, generally omnivorous, which preferentially inhabits the bottom of water bodies. Previous studies have reported species of digenetic trematodes parasitizing G. brasiliensis. This study identifies the Sphincterodiplostomum musculosum Dubois, 1936, a Diplostomidae digenetic, commonly found in many teleostean species. More than 50% of the hosts analyzed had their eyes infected with metacercariae of S. musculosum. A positive correlation was observed between the hosts standard length and the abundance of S. musculosum, a fact that corroborates with other studies on this parasite. This paper reports the first occurrence of S.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metacercariae; Fish parasites; Acará; Cichlids; South America.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202223 |
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| Abrunhosa,Jacqueline Pompeu; Silva,Michele Velasco Oliveira da; Sindeaux Neto,José Ledamir; Santos,Patrícia de Fátima Sacco dos; Matos,Patrícia Santos; Sanches,Osimar de Carvalho; Matos,Edilson Rodrigues. |
| ABSTRACT: The present study investigated the morphology and pathology associated with the occurrence of cysts caused by Myxobolus sp. in the intestine of the silver catfish Rhamdia quelen . Comparisons with the other Myxobolus species that infect the intestines of cyprinids and siluriforms revealed that the pyriform spores of Myxobolus sp. are similar in shape to those described previously in M. miyairii, M. duodenalis and M. cunhai, but different in size. Morphometric analyses revealed that mature spores of Myxobolus sp. (10.9 x 5.1μm) are smaller than those of most species except M. cunhai (10.0 x 5.0μm), which has been described infecting the Brazilian catfish Pimelodus clarias , although the spores differ morphologically in relation to the shape of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myxobolus; Histopathology; Fish parasites; Catfish; Neotropical. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001102024 |
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