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dc.contributor.authorAnas, A.
dc.contributor.authorHridya, K.V.
dc.contributor.authorDevika, Raj
dc.contributor.authorMenon, Nandini
dc.contributor.authorGeorge, G.
dc.contributor.authorReshma, Soman
dc.contributor.authorDeepulal, P.M.
dc.contributor.authorAnn, Mary
dc.contributor.authorKiran, K.
dc.contributor.authorGireeshkumar, T.R.
dc.contributor.authorSreelakshmi, P.K.
dc.contributor.authorTharakan, B.
dc.contributor.authorJasmin, C.
dc.contributor.authorPlatt, T.
dc.contributor.authorSathyendranath, S.
dc.date.accessioned2023-12-10
dc.date.accessioned2023-12-10T13:28:36Z
dc.date.available2023-10-31
dc.date.available2023-12-10T13:28:36Z
dc.date.issued2023
dc.identifier.citationEnvironmental Science and Pollution Research, vol.30(54); 2023; 116066-116077
dc.identifier.issn1614-7499
dc.identifier.otherhttps://link.springer.com/article/10.1007/s11356-023-30565-x
dc.identifier.urihttps://doi.org/10.1007/S11356-023-30565-X
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9145
dc.descriptionIF(JCR2023) = 5.8
dc.description.abstractAmong the diverse Vibrio spp. autochthonous to coastal ecosystems, V. cholerae, V. fluvialis, V. vulnificus and V. parahaemolyticus are pathogenic to humans. Increasing sea-surface temperature, sea-level rise and water-related disasters associated with climate change have been shown to influence the proliferation of these bacteria and change their geographic distribution. We investigated the spatio-temporal distribution of Vibrio spp. in a tropical lake for 1 year at a 20-day interval. The abundance of Vibrio spp. was much higher during the south-west monsoon in 2018, when the lake experienced a once-in-a-century flood. The distribution of Vibrio spp. was influenced by salinity (r = 0.3, p < 0.001), phosphate (r = 0.18, p < 0.01) and nitrite (r = 0.16, p < 0.02) in the water. We isolated 470 colonies of Vibrio-like organisms and 341 could be revived further and identified using 16S rRNA gene sequencing. Functional annotations showed that all the 16 Vibrio spp. found in the lake could grow in association with animals. More than 60% of the isolates had multiple antibiotic resistance (MAR) index greater than 0.5. All isolates were resistant to erythromycin and cefepime. The proliferation of multiple antibiotic-resistant Vibrio spp. is a threat to human health. Our observations suggest that the presence of a diverse range of Vibrio spp. is favoured by the low-saline conditions brought about by heavy precipitation. Furthermore, infections caused by contact with Vibrio-contaminated waters may be difficult to cure due to their multiple antibiotic resistances. Therefore, continuous monitoring of bacterial pollution in the lakes is essential, as is the generation of risk maps of vibrio-infested waters to avoid public contact with contaminated waters and associated disease outbreaks
dc.languageen
dc.publisherSpringer
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleDistribution and antibiotic resistance of vibrio population in an urbanized tropical lake-the Vembanad-in the southwest coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Kochi, Kerala, India


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