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Dietary rayon microfibers differentially reshape rearing water and host associated microbiomes of farmed European sea bass (Dicentrarchus labrax)
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Researchers found that feeding European sea bass rayon microfibers — a type of textile microplastic — disrupted the bacteria living in the fish's gut and in the surrounding water in a dose-dependent way. This shows that microplastic ingestion can alter the microbial communities of farmed fish, with potential implications for aquaculture health and food safety.
This study revealed a concomitant dose-dependent and dose-threshold response among the bacterial communities composing the holobiont of European sea bass in response to dietary RFs ingestion, highlighting novel bacterial taxa and pathways through which microplastic exposure may differentially reshape rearing water and host-associated microbial communities.
More Papers Like This
Dietary rayon microfibers differentially reshape rearing water and host associated microbiomes of farmed European sea bass (Dicentrarchus labrax)
AI summary Read the abstract
Researchers studied how dietary rayon microfibers at varying concentrations reshape the microbiomes in both rearing water and host tissues of farmed European sea bass. The study found that increased rayon microfiber presence in fish feed led to exponential accumulation in water, intestine, and skeletal muscle, with associated changes in microbial communities linked to fatty liver and tissue-specific gene expression alterations.
Dietary rayon microfibers differentially reshape rearing water and host associated microbiomes of farmed European sea bass (Dicentrarchus labrax)
AI summary Read the abstract
Researchers studied how dietary rayon microfibers at varying concentrations reshape the microbiomes in both rearing water and host tissues of farmed European sea bass. The study found that increased rayon microfiber presence in fish feed led to exponential accumulation in water, intestine, and skeletal muscle, with associated changes in microbial communities linked to fatty liver and tissue-specific gene expression alterations.
Impact of polypropylene microplastics and chemical pollutants on European sea bass (Dicentrarchus labrax) gut microbiota and health
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Researchers investigated how polypropylene microplastics, alone and combined with chemical pollutants, affect the gut health and microbiome of European sea bass. They found that microplastic ingestion altered the gut microbial community composition and that combined exposure with pollutants amplified the harmful effects. The study suggests that microplastics may serve as carriers for toxic chemicals, compounding their impact on fish health and potentially affecting seafood safety.
Plastic particle ingestion by farmed European sea bass (Dicentrarchus labrax)
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Researchers examined 83 farmed European sea bass (Dicentrarchus labrax) cultivated in coastal waters off Tenerife, finding microplastics in the gastrointestinal tracts of 65% of individuals at an average of 0.6 to 2.7 particles per fish. FTIR analysis identified fibers as dominant (81%), composed mainly of cellulose and nylon, with PE and PP fragments also present, demonstrating that even farmed fish in managed aquaculture settings accumulate environmental microplastics.
Effects of microplastics on trophic parameters, abundance and metabolic activities of seawater and fish gut bacteria in mesocosm conditions
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Mesocosm experiments showed that microplastics altered bacterial community structure and metabolic activity in both seawater and fish guts, suggesting that plastic pollution can disrupt microbial ecosystems in the marine environment. The findings raise concerns about how microplastic-driven microbiome changes could affect fish health and broader ecosystem functioning.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.