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Tytuł pozycji:

Metal contamination and coexistence of metal and antibiotic resistance in Vibrio species recovered from aquaculture ponds with and without history of antibiotic usage in Southwest Nigeria

Tytuł:
Metal contamination and coexistence of metal and antibiotic resistance in Vibrio species recovered from aquaculture ponds with and without history of antibiotic usage in Southwest Nigeria
Autorzy:
Abimbola Olumide Adekanmbi
Ololade Grace Olawuni
Adedolapo Victoria Olaposi
Temat:
Antibiotic resistance
Antibiotic usage
Aquaculture ponds
Clarias gariepinus
Heavy metal contamination
Metal resistance
Science
Źródło:
Bulletin of the National Research Centre, Vol 45, Iss 1, Pp 1-10 (2021)
Wydawca:
SpringerOpen, 2021.
Rok publikacji:
2021
Kolekcja:
LCC:Science
Typ dokumentu:
article
Opis pliku:
electronic resource
Język:
English
ISSN:
2522-8307
Relacje:
https://doaj.org/toc/2522-8307
DOI:
10.1186/s42269-021-00581-3
Dostęp URL:
https://doaj.org/article/a2489d672a4e41e08a9254886ca33101  Link otwiera się w nowym oknie
Numer akcesji:
edsdoj.2489d672a4e41e08a9254886ca33101
Czasopismo naukowe
Abstract Background The use of metal-containing and antimicrobial compounds is a common practice in aquaculture operations in Nigeria. Only a few studies have focused on the impact of these chemicals on metal and antibiotic resistance development in the bacterial flora of aquaculture. This study therefore sets out to fill this gap. Results Five metals, namely copper (Cu), zinc (Zn), lead (Pb), nickel (Ni) and chromium (Cr), were detected at different concentrations in the pond water samples, with most values obtained exceeding the maximum recommended national standard for fisheries and recreation water quality criteria set by the National Environmental Standards and Regulations Enforcement Agency (NESREA) in Nigeria. A total of 121 Vibrio spp. were recovered from the aquaculture pond water with Vibrio cholerae having the highest frequency (37) followed by Vibrio parahaemolyticus (36), Vibrio vulnificus (36) and Vibrio alginolyticus (12). Seventy-five isolates were recovered from ponds with history of antibiotic use, while the ponds with no recognized history of antibiotic use had forty-six isolates. The percentage resistance to antibiotics in the isolates was: ampicillin (88.5%), amoxicillin–clavulanate (44.3%), tetracycline (41%), trimethoprim-sulfamethoxazole (22.1%), chloramphenicol (15.6%), ciprofloxacin (11.5%), imipenem (5.7%), ceftazidime (4.1%) and gentamicin (0%). All the isolates tolerated all the metals to 400 µg/mL concentration while only the trio of Pb, Ni and Cr were tolerated beyond the concentration. Zn and Cu appeared to be the most toxic metals on Vibrio spp., with no isolate surviving beyond the 400 µg/mL concentration mark, while 57 of the 121 isolates survived Cr at the highest concentration (3200 µg/mL), making it the most tolerated of the metals. Conclusion This study reports a high level of metal contamination in the aquaculture ponds studied. The concentration of the metals exceeded the maximum permissible limits in Nigeria. Also, there was coexistence of metal and antibiotic resistance in the bacteria recovered from the aquaculture ponds. There is a need to regulate the use of chemicals, especially antibiotics and some biocidal compounds, to clamp down on the introduction of metals and antibiotics into the aquaculture systems, as these chemicals could facilitate the development of resistance traits in aquaculture bacteria by creating a selective pressure in the aquaculture environment.

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