We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Evaluation of the impact of polyethylene microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae
AI summary Read the abstract
Researchers evaluated the impact of polyethylene microbead ingestion on European sea bass larvae over their early development. The study detected microbeads in the gastrointestinal tract but found limited physiological consequences at the tested concentrations, suggesting that while fish larvae do ingest microplastics, the effects on early development may vary depending on exposure levels.
Microplastics are present in marine habitats worldwide and may be ingested by low trophic organisms such as fish larvae, with uncertain physiological consequences. The present study aims at assessing the impact of polyethylene (PE 10-45 μM) microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Fish were fed an inert diet including 0, 10(4) and 10(5) fluorescent microbeads per gram from 7 until 43 days post-hatching (dph). Microbeads were detected in the gastrointestinal tract in all fish fed diet incorporating PE. Our data revealed an efficient elimination of PE beads from the gut since no fluorescent was observed in the larvae after 48 h depuration. While the mortality rate increased significantly with the amount of microbeads scored per larvae at 14 and 20 dph, only ingestion of the highest concentration slightly impacted mortality rates. Larval growth and inflammatory response through Interleukine-1-beta (IL-1β) gene expression were not found to be affected while cytochrome-P450-1A1 (cyp1a1) expression level was significantly positively correlated with the number of microbeads scored per larva at 20 dph. Overall, these results suggest that ingestion of PE microbeads had limited impact on sea bass larvae possibly due to their high potential of egestion.
More Papers Like This
Microplastic in Gastrointestinal Tracts of European Sea Bass
AI summary Read the abstract
This study examined microplastics found in the gastrointestinal tracts of European sea bass caught in the Mediterranean. The detection of microplastics in commercially important food fish raises concerns about human dietary exposure through seafood consumption.
Direct ingestion, trophic transfer, and physiological effects of microplastics in the early life stages of Centropristis striata, a commercially and recreationally valuable fishery species
AI summary Read the abstract
Researchers investigated how larval and juvenile Black Sea Bass ingest and transfer microplastics through their food chain, finding that fish consumed low-density polyethylene microspheres both directly and via contaminated prey. While short-term exposure did not cause mortality, the study documented trophic transfer of microplastics and highlighted the need to understand long-term effects on commercially important fish species.
Effects of microplastic ingestion in Dicentrarchus labrax (Linnaeus, 1758) intestine health
AI summary Read the abstract
This master's thesis investigated how ingested microplastics affect intestinal health in European sea bass (Dicentrarchus labrax), a commercially important fish species. The research addresses gaps in understanding how microplastic exposure causes intestinal damage in farmed and wild fish relevant to seafood safety.
Bioaccumulation of chemical pollutants from environmental microplastics in European sea bass
AI summary Read the abstract
Researchers designed a feeding experiment to determine whether chemical contaminants from environmental microplastics undergo trophic transfer to the liver of European sea bass (Dicentrarchus labrax), testing two feeding treatments with realistic microplastic concentrations to evaluate bioaccumulation risk.
Evidence of microplastic ingestion by cultured European sea bass (Dicentrarchus labrax)
AI summary Read the abstract
Researchers evaluated, for the first time, microplastic presence in farmed European sea bass cultivated in coastal waters of Tenerife, Canary Islands. They found that 65% of the 83 examined fish contained microplastics in their gastrointestinal tracts, demonstrating that cultured fish are also exposed to microplastic contamination, not just wild-caught species.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.