Qualidade microbiológica da água e histopatologia de brânquias de peixes provenientes de pisciculturas do município de itapecuru-mirim, Estado do Maranhão

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSantos, Débora Martins Silva
dc.creatorCruz, Cristiano Ferreira
dc.creatorPereira, Dayane Pestana
dc.creatorAlves, Lúcia Maria Coelho
dc.creatorde Moraes, Flávio Ruas
dc.date2014-05-27T11:26:26Z
dc.date2016-10-25T18:36:59Z
dc.date2014-05-27T11:26:26Z
dc.date2016-10-25T18:36:59Z
dc.date2012-04-04
dc.date.accessioned2017-04-06T01:58:13Z
dc.date.available2017-04-06T01:58:13Z
dc.identifierActa Scientiarum - Biological Sciences, v. 34, n. 2, p. 199-205, 2012.
dc.identifier1679-9283
dc.identifier1807-863X
dc.identifierhttp://hdl.handle.net/11449/73282
dc.identifierhttp://acervodigital.unesp.br/handle/11449/73282
dc.identifier10.4025/actascibiolsci.v34i2.8460
dc.identifier2-s2.0-84859208367.pdf
dc.identifier2-s2.0-84859208367
dc.identifierhttp://dx.doi.org/10.4025/actascibiolsci.v34i2.8460
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/894099
dc.descriptionThe present study evaluated the microbiological water quality and tissue lesions in gills from Nile tilapia (Oreochromis niloticus) and hybrid tambacu (Colossoma macropomum female x Piaractus mesopotamicus male). For this, water and gills were collected from fish farming at six locations in Itapecuru- Mirim County, Maranhão State. Microbiological water analyses revealed contamination by total coliforms, Escherichia coli and heterotrophic bacteria. In the gills, we observed a diversity of Gram-positive and Gramnegative bacteria. The tissue lesions were: lamellar fusion, interlamellar hyperplasia, sub-epithelial edema and telangiectasia. Inflammatory lesions were not observed. Significant statistical difference (p > 0.05) was not detected when comparing different gills lesions during rainy and dry season. The correlation between lesion and pond type was statistically different (p < 0.05) for lamellar fusion and interlamellar hyperplasia which occurred more frequently at ground ponds. Regarding the frequency of lesions in the different fish species, there was statistical difference (p < 0.05), and the tambacu was more sensitive to lamellar fusion while tilapia was more sensitive for the other lesions. In relation to the sampling stations, there was statistical difference for all the gill lesions. In conclusion, tissue lesions are nonspecific and function as a defense mechanism against polluted aquatic environments, without infectious character.
dc.languageeng
dc.languagepor
dc.relationActa Scientiarum: Biological Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectColiforms
dc.subjectGill epithelium
dc.subjectLesions
dc.subjectTambacu
dc.subjectTilapia
dc.subjectWater
dc.subjectanimal tissue
dc.subjectbacterial infection
dc.subjectbacterium
dc.subjectBrazil
dc.subjectcoliform bacterium
dc.subjectColossoma macropomum
dc.subjectcontrolled study
dc.subjectdry season
dc.subjectedema
dc.subjectepithelium
dc.subjectEscherichia coli
dc.subjectfish
dc.subjectfish disease
dc.subjectgill
dc.subjectGram negative bacterium
dc.subjectGram positive bacterium
dc.subjectheterotropphic bacterium
dc.subjecthistopathology
dc.subjecthyperplasia
dc.subjectinflammation
dc.subjectmicrobial diversity
dc.subjectmicrobiological water quality
dc.subjectnonhuman
dc.subjectOreochromis niloticus
dc.subjectPiaractus mesopotamicus
dc.subjectpisciculture
dc.subjectrainy season
dc.subjectseason
dc.subjectspecies difference
dc.subjecttelangiectasia
dc.subjecttissue structure
dc.subjectwater analysis
dc.subjectwater contamination
dc.subjectwater quality
dc.subjectwater sampling
dc.subjectPosibacteria
dc.titleQualidade microbiológica da água e histopatologia de brânquias de peixes provenientes de pisciculturas do município de itapecuru-mirim, Estado do Maranhão
dc.typeOtro


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