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Registros recuperados: 10 | |
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NEGREIROS,Luciano Pereira; TAVARES-DIAS,Marcos. |
ABSTRACT This study investigated the parasite fauna in Piaractus brachypomus grown in fish farms in the state of Acre, in the western Brazilian Amazon. We examined 160 fish from four farms. Overall parasite prevalence was 66.9%. The fish were parasitized by Anacanthorus spathulatus, Mymarothecium viatorum, Anacanthorus penilabiatus, Clinostomum marginatum, Echinorhynchus jucundus and Henneguya sp., but monogenean species were the dominant parasites. Monogeneans showed an aggregated distribution pattern and there was a weak correlation between host size and abundance of M. viatorum and A. penilabiatus. No difference in the condition factor of parasitized and non-parasitized fish was detected. The fish of all farms had the gills parasitized by A. spathulatus... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish farming; Monogenea; Endoparasites; Pirapitinga. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400294 |
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Tavernari, Fernando de Castro; UFRPE; Takemoto, Ricardo Massato; UEM; Lacerda, Ana Carolina Figueredo; UEM; Pavanelli, Gilberto Cézar; UEM. |
A new species of Demidospermus Suriano, 1983 is described from the gills of Auchenipterus osteomystax Miranda-Ribeiro, 1918 (Auchenipteridae), collected in the upper Paraná river floodplain, Brazil. The gills were removed and preserved in 5% formalin. Later the parasites were removed from the gills with the aid of a stereomicroscope and conserved in 70% alcohol. Some specimens were stained with Gomori’s trichrome, dehydrated in absolute alcohol and cleared with faia creosote to observe the internal organs. Other specimens were mounted in Hoyer’s medium for the study of the sclerotized structures. The present study describes a new monogenetic species, Demidospermus osteomystax n. sp., characterized by: tandem gonads; V-shaped haptoral bars with... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Auchenipterus osteomystax; Demidospermus; Parasite; Monogenea; Paraná river 2.13.00.00-3 Auchenipterus osteomystax; Demidospermus; Parasite; Monogenea; Paraná river Parasitologia. |
Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3368 |
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Carvalho, Adriano Reder de; Universidade Federal Rural do Rio de Janeiro; Luque, José Luis Fernando; Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais. |
Three new species of monogeneans parasitic on the gills and esophagus of Trichiurus lepturus (Linnaeus, 1758) in the Southern Brazilian coast are described herein. Between July 2006 and June 2007, 120 specimens of T. lepturus were acquired from local fishermen in Guanabara Bay (23°1’52”S, 43º11’56”W), Rio de Janeiro State, Brazil. Pseudempleurosoma guanabarensis sp. nov. (Dactylogyridae) presented 15% prevalence and mean intensity 1.8, and differs from all congeners by presenting larger body, largest rectangular dorsal bar, and larger MCO with muscular sheath in the base. Encotyllabe souzalimae sp. nov. (Capsalidae) showed 7.5% prevalence and mean intensity 1.3, differs from all congeners by the size and position of the testes, morphology of the MCO, and... |
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Palavras-chave: Monogenea; Pseudempleurosoma; Encotyllabe; Octoplectanocotyla 2.13.02.02-2. |
Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/10360 |
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Justine, Jean-lou; Beveridge, Ian; Boxshall, Geoffrey A.; Bray, Rod A.; Moravec, Frantisek; Trilles, Jean-paul; Whittington, Ian D.. |
Over a 7-year period, parasites have been collected from 28 species of groupers (Serranidae, Epinephelinae) in the waters off New Caledonia Host-parasite and parasite-host lists are provided, with a total of 337 host-parasite combinations, including 146 parasite identifications at the species level Results are included for isopods (5 species), copepods (19) monogeneans (56), digeneans (28), cestodes (12) and nematodes (12) When results are restricted to those 14 fish species for which more than five specimens were examined and to parasites identified at the species level, 109 host-parasite combinations were recorded, with 63 different species, of which monogeneans account for half (32 species), and an average of 4 5 parasite species per fish species... |
Tipo: Text |
Palavras-chave: Isopoda; Copepoda; Monogenea; Digenea; Cestoda; Nematoda; Serranidae; Epinephelinae; Parasite biodiversity; Coral reef New Caledonia. |
Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00021/13193/60145.pdf |
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Moreira,Juliana; Scholz,Tomáš; Luque,José Luis. |
ABSTRACT Diaphorocleidus altamirensis sp. nov., parasitic on the gills of Argonectes robertsi Langeani, 1999 from the Xingu River, northern Brazil, is described. The new species differs from its six congeners by the morphology of the male copulatory organ (which comprises a coil of six rings), by the midventral vagina, and by the presence of only one pair of eyespots. It is the first species of Diaphorocleidus Jogunoori, Kritsky & Venkatanarasaiah, 2004 described from hemiodontid fishes. In addition, new host and geographical records of seven species of dactylogyrids found on fish from the Xingu River are reported. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dactylogyridae; Hemiodontidae; Monogenea; Neotropics; Xingu River. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000403000 |
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Martins,Maurício Laterça; Romero,Nicolás Garcia. |
One hundred four out of 225 diagnosticated cases were myxosporidian, monogenean, Ichthyophthirius multifiliis Fouquet, 1876 and bacterial diseases in Piaractus mesopotamicus Holmberg, 1887 (pacu), Colossoma macropomum Cuvier, 1818 (tambaqui) and tambacu, at Aquaculture Center, Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil, between 1992 and 1995. The gills were fixed in 10% buffered formalin solution to posterior histologic routine. It was observed Henneguya sp. cysts into the capillaries of the secondary lamellae, encapsulated by the respiratory epithelium cells. It provoked adherence of the adjacent lamellae, hyperplasia, congestion, oedema and epithelium displacement. Monogeneans infestations by Anacanthorus penilabiatus Boeger,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Protozoa; Monogenea; Histopathology; Brazilian fish. |
Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200017 |
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Registros recuperados: 10 | |
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