Recovery of Escherichia coli in fresh water fish, Jenynsia multidentata and Bryconamericus iheringi

Guzmán, María C.; Bistoni, María de los Ángeles; Tamagnini, L.M.; González, R.D.

doi:10.1016/j.watres.2004.02.016

Cited by 56 publications

(34 citation statements)

References 21 publications

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“…salmonicida and A. bestiarum, while in summer there were mainly A. veronii and Acinetobacter johnsonii in the same location. Although bacterial concentrations in fish tissues are reported to increase with the increase of the bacterial load of water, fish have various immunological barriers to protect their tissues from the bacterial agents from the water: external integument with a mucus layer; lymphocytes, granulocytes and macrophages from skin, gills and digestive system; lymphoid organs (Guzman et al, 2004).…”

Section: Occurrence In Fish and Pathogenicitymentioning

confidence: 99%

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Popović

Kazazić

Strunjak‐Perović

et al. 2015

Ecotoxicology and Environmental Safety

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a b s t r a c tA two-season investigation of the wastewater treatment plant (WWTP) effluent, of related waters, sludge and fish across a wide area and 11 stations, with emphasis on Aeromonas spp. was conducted. Aeromonas veronii was the prevailing aeromonad isolated by MALDI TOF MS in the summer period. A rise of Aeromonas hydrophila was observed in summer in raw sewage, treated wastewater and effluent-carrying canal. The ratio of aeromonad species retrieved from fish tissues did not correspond with the water and sludge findings, as in spring in the effluent-carrying canal fish carried Aeromonas salmonicida ssp. salmonicida and Aeromonas bestiarum, while in summer mainly A. veronii and Acinetobacter johnsonii were isolated from fish tissues in the same location. No correlation was established between fecal coliforms/ enterococci and aeromonad occurrence. All retrieved Aeromonas species demonstrated a distinct spectral pattern, with peaks showing unique mass distribution ranging from 4000 to 10,000 Da. Hierarchical clustering separated aeromonads of all isolated species and clustered closely related strains together. Resistance was determined towards amoxicillin, and frequently towards sulfamethoxazole and erythromycin. In summer, a high proportion of water and sludge Aeromonas species demonstrated multiple resistance patterns towards five or more antimicrobials. The quinolone resistance of water aeromonads was mostly related to A. veronii. There are potential health concerns regarding aeromonad exposure amongst recreational fishermen who come into contact with fish inhabiting waters downstream from the WWTP, and WWTP workers who are occupationally exposed to wastewaters and their aerosols.

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Section: Occurrence In Fish and Pathogenicitymentioning

confidence: 99%

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Popović

Kazazić

Strunjak‐Perović

et al. 2015

Ecotoxicology and Environmental Safety

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“…In contrast to what is seen in homeothermic animals, E. coli is not a permanent inhabitant of intestinal tracts of fish (9) but reflects the character of the aquatic habitat and the bacterial load in the water (10)(11)(12).…”

mentioning

confidence: 99%

Enterobacteriaceae with Extended-Spectrum- and pAmpC-Type β-Lactamase-Encoding Genes Isolated from Freshwater Fish from Two Lakes in Switzerland

Abgottspon

Nüesch‐Inderbinen

Zurfluh

et al. 2014

Antimicrob Agents Chemother

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“…Escherichia coli has been reported as a common pathogen associated with fish due to the nature of fish environment (Guzman et al, 2004). Fish are more susceptible to disease or infection where water quality is marginal and fish exposed to environmental stress factors (Snieszko, 2006).…”

Section: Discussionmentioning

confidence: 99%

Growth Performance of the Mudfish, Clarias anguillaris (Pellegrin, 1923) in Treated and Untreated Domestic Sewage

Nwabueze¹

2012

SAR

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Growth of the mudfish, Clarias anguillaris in of treated and untreated domestic sewage was investigated. Six weeks old fingerlings obtained from Delta State University, Asaba Campus Research Farm were used and the study lasted for 14 weeks. Fingerlings were kept in stock tank containing 10, 000 cm 3 bore hole water and allowed to acclimate for two weeks. The stock tank was well aerated and fingerlings fed twice daily at the rate of 4% body weight with poultry mash in a daily renewal static bioassay system. The stock (0%-control) was then diluted with bole hole water serially to give 25, 50, 75 % strength of the treated and untreated domestic sewage and 100 % into which 10 fingerlings each were introduced. Weekly measurement of growth parameters of fish total length and weight were taken. The condition factor (k) was calculated. Increase in fish total length and weight in control, treated and untreated domestic sewage was observed. Growth of fish was significantly higher (P<0.05) in the treated domestic sewage than in the untreated. There was no significant (P>0.05) difference in total length of fish in all concentrations of treated domestic sewage as compared with controls. However, fish in 100% concentration of domestic sewage had a slower increase in total length than fish in other treated concentrations. Weight gain in C. anguillaris was higher in the 50% but not significantly (P>0.05) higher than other concentrations of treated domestic sewage. The increase in fish weight in the untreated domestic sewage was not significantly (P>0.05) different in all the treatments but was significantly (P<0.05) lower than that of fish in the control. Condition factor of C. anguillaris in both the treated and untreated domestic sewage varied and decreased except for fish in 100% treated domestic sewage which was observed to have an increase in the value of the condition factor from 3.76g cm -3 to 4.73g cm -3 . Untreated domestic sewage water showed a higher turbidity, biochemical Oxygen Demand (B.O.D), alkalinity and nitrate composition of than treated sewage which had higher oxygen content and was clearer in appearance than the untreated. Microbial analysis shows the presence of Escherichia fecalis, Streptococcus fecalis and Enterococcus fecalis in untreated sewage with ciliated protozoans in both treated and untreated sewage. This study has shown that treated domestic sewage is best for healthy fish growth with reduced risk of transfer of pathogens.

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Recovery of Escherichia coli in fresh water fish, Jenynsia multidentata and Bryconamericus iheringi

Cited by 56 publications

References 21 publications

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Enterobacteriaceae with Extended-Spectrum- and pAmpC-Type β-Lactamase-Encoding Genes Isolated from Freshwater Fish from Two Lakes in Switzerland

Growth Performance of the Mudfish, Clarias anguillaris (Pellegrin, 1923) in Treated and Untreated Domestic Sewage

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