Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

Jerônimo, Gabriela Tomas; Ventura, Arlene Sobrinho; Pádua, Santiago Benites de; Satake, Fabiana; Ishikawa, Márcia Mayumi; Martins, Maurício Laterça

doi:10.1590/s0100-204x2013000800054

Cited by 5 publications

(6 citation statements)

References 10 publications

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“…em pintado (P. corruscans) oriundo do Rio São Francisco, com menor prevalência do que a observada no presente trabalho. Da mesma forma, Jerônimo et al (2013) constataram menor ocorrência de metacercárias de digenéticos em cachara pantaneira (P. reticulatum) mantido em baixa densidade de estocagem em tanques-rede, no Rio Paraguai. Isso fortalece a hipótese de que peixes menores são mais susceptíveis a digenéticos em razão da sua estratégia parasitária (Luque & Poulin, 2004).…”

Section: Resultsunclassified

“…Parasitos desta classe afetam principalmente as brânquias e podem causar hiperplasia e telangiectasia dos filamentos branquiais, o que dificulta as trocas gasosas (Pavanelli et al, 2006). Jerônimo et al (2013) constataram prevalência de 80% de helmintos Monogenea em P. reticulatum cultivado em tanque-rede. Por sua vez, Campos et al (2008) observaram 100% de prevalência em cacharas (P. fasciatum) de ambiente natural, no Rio Aquidauana.…”

Section: Resultsunclassified

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Fauna parasitária dos híbridos siluriformes cachapinta e jundiara nos primeiros estágios de desenvolvimento

Ventura

Jerônimo

Gonçalves

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a fauna parasitária dos peixes híbridos cachapinta (Pseudoplatystoma corruscans macho x P. reticulatum fêmea) e jundiara (Leiarius marmoratus macho x P. reticulatum fêmea) no período de larvicultura. Um total de 315 animais, 126 híbridos jundiara e 189 híbridos cachapinta, foram examinados de acordo com o estágio de desenvolvimento: larvas, pós-larvas e alevinos. Larvas e pós-larvas foram prensadas entre lâmina e lamínula e observadas sob microscopia óptica. Os alevinos foram observados externamente em estereomicroscópio e necropsiados para avaliação interna dos órgãos. Foram aferidos os parâmetros de qualidade de água em todas as fases de cultivo. O exame parasitológico revelou a presença dos protozoários Epistylis sp. e Trichodina sp., no tegumento e nas brânquias, Ichthyophthirius multifiliis no tegumento, dos helmintos Monogenea nas brânquias, e das metacercárias de digenéticos em brânquias, baço, rins, fígado e intestino, em ambos os híbridos analisados. Os parasitos Epystilis sp., Trichodina sp. e metacercária de digenéticos ocorrem com maior frequência nos dois híbridos, nas fases de pós-larvas e alevinos. Há maior prevalência e diversidade de parasitos na fase de alevinagem dos híbridos estudados.Termos para indexação: Epistylis, Ichthyophthirius multifiliis, Trichodina, bagre, larvicultura, parasitos. Parasitic fauna of the siluriform hybrids cachapinta and jundiara in the first stages of developmentAbstract -The objective of this work was to evaluate the parasitic fauna of the hybrid fish cachapinta (Pseudoplatystoma corruscans male x P. reticulatum female) and jundiara (Leiarius marmoratus male x P. reticulatum female) at the hatchery stages. A total of 315 animals, 126 hybrids of jundiara and 189 hybrids of cachapinta were examined according to their development stage: larvae, post-larvae, and fingerlings. Larvae and post-larvae were pressed between a slide and a cover slip and were observed under optical microscopy. Fingerlings were externally observed in a stereomicroscope and dissected for internal evaluation of organs. Water quality parameters were measured in all cultivation phases. The parasitological exam showed the presence of the protozoa Epistylis sp. and Trichodina sp., on integument and gills, and Ichthyophthirius multifiliis on integument, of the helminth Monogenea on gills, and of digenean metacercariae on gills, spleen, kidneys, liver, and intestines in both hybrid fish evaluated. The parasites Epistylis sp., Trichodina sp., and digenean metacercariae occur most frequently in the two hybrids at the stages of post-larvae and fingerlings. There is a higher prevalence and diversity of parasites in the fingerling phase of the studied hybrids.

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Section: Resultsunclassified

Fauna parasitária dos híbridos siluriformes cachapinta e jundiara nos primeiros estágios de desenvolvimento

Ventura

Jerônimo

Gonçalves

et al. 2013

Pesq. agropec. bras.

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“…Host reported as Pseudoplatystoma reticulatum by Jerônimo et al (2013), but it falls within the range of genetic variability of Pseudoplatystoma fasciatum ( sensu lato ), according to Carvalho-Costa et al (2011). Sequence of partial 28S (AJ275064) (Zehnder et al 2000).…”

Section: Parasite-host Listmentioning

confidence: 93%

“… Pseudoplatystoma fasciatum ( Actinopterygii : Pimelodidae ); freshwater; intestine; adult; Amazon and Paraná River basins; Brazil, Peru ( Woodland 1935a ; Zehnder and Mariaux 1999 ; Zehnder et al 2000 ; Rego 2002 ; Santos et al 2003 ; Hypša et al 2005 ; Ceccarrelli et al 2006 ; de Chambrier et al 2006b , 2015a ; Campos et al 2008 , 2009a , b ; Jerônimo et al 2013 ).…”

Section: Parasite-host Listmentioning

confidence: 99%

Annotated checklist of fish cestodes from South America

Alves¹,

Chambrier²,

Scholz³

et al. 2017

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An exhaustive literature search supplemented by a critical examination of records made it possible to present an annotated checklist of tapeworms (Cestoda) that, as adults or larvae (metacestodes), parasitize freshwater, brackish water and marine fishes, i.e. cartilaginous and bony fishes, in South America. The current knowledge of their species diversity, host associations and geographical distribution is reviewed. Taxonomic problems are discussed based on a critical evaluation of the literature and information on DNA sequences of individual taxa is provided to facilitate future taxonomic and phylogenetic studies. As expected, the current knowledge is quite uneven regarding the number of taxa and host-associations reported from the principal river basins and marine ecoregions. These differences may not only reflect the actual cestode richness but may also be due to the research effort that has been devoted to unravelling the diversity of these endoparasitic helminths in individual countries. A total of 297 valid species, 61 taxa identified to the generic level, in addition to unidentified cestodes, were recorded from 401 species of fish hosts. Among the recognized cestode orders, 13 have been recorded in South America, with the Onchoproteocephalidea displaying the highest species richness, representing c. 50% of all species diversity. The majority of records include teleost fish hosts (79%) that harbour larval and adult stages of cestodes, whereas stingrays (Myliobatiformes) exhibit the highest proportion of records (39%) among the elasmobranch hosts. Fish cestodes are ubiquitous in South America, being mostly recorded from the Warm Temperate Southeastern Pacific (WTSP; 31%) for marine hosts and the Amazon River basin (45%) for freshwater ones. The following problems were detected during the compilation of literary data: (i) unreliability of many records; (ii) poor taxonomic resolution, i.e. identification made only to the genus or even family level; (iii) doubtful host identification; Alves et al. / ZooKeys 650: 1-205 (2017) 2 and (iv) the absence of voucher specimens that would enable us to verify identification. It is thus strongly recommended to always deposit representative specimens in any type of studies, including faunal surveys and ecological studies. An analysis of the proportion of three basic types of studies, i.e. surveys, taxonomic and ecological papers, has shown a considerable increase of ecological studies over the last decade.

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“…Parasites, such as Protozoa, Metazoa, and Myxozoa, were identified in Nile tilapia (Pantoja et al, 2012) and Pseudoplatystoma spp. (Campos et al, 2008;Jerônimo et al, 2013); however, data on the host-pathogen relationship are still scarce. The present study shows new information on the pathogenesis of Epistylis sp.…”

Section: Introductionmentioning

confidence: 99%

Host-parasite relationship during Epistylis sp. (Ciliophora: Epistylididae) infestation in farmed cichlid and pimelodid fish

Pádua¹,

Martins

Valladão

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to describe the host-Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P. corruscans), all diseased, were used for in vivo morphological analysis of sessile peritrichs by contrast microscopy. Fragments of infected tissues were subjected to histological processing and scanning electron microscopy. Epistylis sp. caused hemorrhagic ulcer disease, and cichlids were more prone to develop infestations throughout the body surface due to the attachment of the colonies to the scales, which did not occur with pimelodids. Multifocal granulomatous dermatitis was observed, associated with the hydropic degeneration of the epithelium and to ulcerative areas of necrosis. Microscopic examination showed the presence of bacterial microflora associated to Epistylis sp. peduncles. Therefore, this species can be considered a portal of entry for opportunistic bacteria.Index terms: Oreochromis niloticus, Pseudoplatystoma reticulatum, Pseudoplatystoma corruscans, histopathology, pathogenesis, sessile peritrich. Relação hospedeiro-parasita durante infestação por Epistylis sp. (Ciliophora: Epistylididae) em peixes ciclídeos e pimelodídeos cultivadosResumo -O objetivo deste trabalho foi descrever a relação hospedeiro-Epistylis sp. durante infestação em peixes cultivados. Foram utilizados cinco tilápias-do-nilo (Oreochromis niloticus) e dez híbridos de surubim (Pseudoplatystoma reticulatum x P. corruscans), todos parasitados, para análise morfológica in vivo de peritríquios sésseis por microscopia de contraste de fase. Fragmentos de tecidos infectados foram processados para histologia e microscopia eletrônica de varredura. Epistylis sp. causou doença ulcerativa hemorrágica, e os ciclídeos foram mais susceptíveis ao parasitismo na superfície do corpo em razão da fixação das colônias nas escamas, o que não ocorreu nos pimelodídeos. Foi observada ocorrência de dermatite granulomatosa multifocal, associada à degeneração hidrópica do epitélio e às áreas ulcerativas de necrose. O estudo microscópico mostrou a presença de bactérias associadas aos pedúnculos de Epistylis sp. Portanto, esta espécie pode ser considerada porta de entrada para bactérias oportunistas.

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Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

Cited by 5 publications

References 10 publications

Fauna parasitária dos híbridos siluriformes cachapinta e jundiara nos primeiros estágios de desenvolvimento

Fauna parasitária dos híbridos siluriformes cachapinta e jundiara nos primeiros estágios de desenvolvimento

Annotated checklist of fish cestodes from South America

Host-parasite relationship during Epistylis sp. (Ciliophora: Epistylididae) infestation in farmed cichlid and pimelodid fish

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