1. Identifying macroplastic pathobiomes and antibiotic resistance in a subtropical fish farm.
- Author
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Naudet, Jeanne, d'Orbcastel, Emmanuelle Roque, Bouvier, Thierry, Godreuil, Sylvain, Dyall, Sabrina, Bouvy, Simon, Rieuvilleneuve, Fabien, Restrepo-Ortiz, Claudia Ximena, Bettarel, Yvan, and Auguet, Jean-Christophe
- Subjects
FISH farming ,DRUG resistance in bacteria ,MARICULTURE ,BIOFILMS ,MICROBIAL sensitivity tests ,PATHOGENIC bacteria - Abstract
Macroplastics are ubiquitous in aquaculture ecosystems. However, to date the potential role of plastics as a support for bacterial biofilm that can include potential human pathogenic bacteria (PHPB) and antibiotic-resistant bacteria (ARB) has been largely overlooked. In this study, we used a combination of metabarcoding and standard antibiotic susceptibility testing to study the pathobiome and resistome of macroplastics, fish guts and the environment in a marine aquaculture farm in Mauritius. Aquaculture macroplastics were found to be higher in PHPB, dominated by the Vibrionaceae family (0.34 % of the total community), compared with environmental samples. Moreover, isolates from aquaculture plastics showed higher significant multiple antibiotic resistance (MAR) compared to non-plastic samples of seawater, sediment and fish guts. These results suggest that plastics act as a reservoir and fomite of PHPB and ARB in aquaculture, potentially threatening the health of farmed fish and human consumers. • The plastic bacteriome harbors more potential pathogens than environmental communities. • Aquaculture plastic bacteria show a higher MAR index than non-plastic bacteria. • Plastic can act as a reservoir for pathogenic and antibiotic-resistant bacteria. • The fish and macroplastic bacteriome share certain pathogens. • A nearby river can increase the risk of pathogen introduction in a fish farm. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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