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Investigation of microplastic presence in the intestinal and muscle tissues of wild and farmed gilthead sea bream (Sparus aurata).
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Researchers compared microplastic contamination in farmed and wild gilthead sea bream (Sparus aurata) across seasons in Turkish waters, finding that wild fish in winter had significantly higher intestinal microplastic loads (1.23 items/fish) than farmed fish, with polystyrene and polyethylene being the only polymers identified.
The occurrence of microplastics in gilthead sea bream (Sparus aurata) was comparatively investigated under different rearing conditions (farmed and wild) and across seasons (summer and winter). A total of 172 fish were analyzed for microplastics in muscle tissue and intestines. Microplastics were separated using a 10% potassium hydroxide (KOH) digestion protocol, and polymer types were identified via ATR FT-IR spectroscopy. Suspicious particles in the meat samples were smaller and more suitable for measurement with the μ-FT-IR device, and therefore could not be detected. In terms of microplastics in the intestines, the number of positive fish in the wild group during the winter period was significantly higher (p<0.05) compared to the farm group. The MP/Fish Count in the wild samples during the winter period (1.23±0.17) was significantly higher than in the summer (0.61±0.10) and winter (0.37±0.11) farm groups (p<0.05). The average amount of microplastics was 0.52 microplastics/fish in farmed samples and 0.94 microplastics/fish in natural samples. Two types of plastics were identified: polystyrene and polyethylene. This study contributes to the literature by providing important and comparative data on microplastic contamination in gilthead sea bream from aquaculture and wild environments in Turkish waters.
More Papers Like This
Investigation of microplastic presence in the intestinal and muscle tissues of wild and farmed gilthead sea bream (Sparus aurata).
AI summary Read the abstract
Researchers compared microplastic contamination in farmed and wild gilthead sea bream (Sparus aurata) across seasons in Turkish waters, finding that wild fish in winter had significantly higher intestinal microplastic loads (1.23 items/fish) than farmed fish, with polystyrene and polyethylene being the only polymers identified.
Microplastics Presence in Cultured and Wild Sea Bream Gasrointestinal Tract
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This study detected and characterized microplastics in the gastrointestinal tracts of both wild-caught and farmed sea bream from the Adriatic Sea. Finding microplastics in both farmed and wild fish indicates widespread environmental contamination and raises food safety questions for seafood consumers.
Screening for microplastics in gastrointestinal tract of sea bream (Sparus aurata) from the Northern Adriatic
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Researchers screened the gastrointestinal tracts of commercially important sea bream (Sparus aurata) from the Northern Adriatic for microplastic contamination, sampling fish during autumn and spring spawning periods and digesting intestines in potassium hydroxide solution. They found 77 microplastic particles in autumn and 17 in spring, with fibers being the most common morphology.
Microplastic ingestion evidence by economically important farmed fish species from Turkey
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Researchers examined microplastic ingestion in farmed rainbow trout, gilthead seabream, and European seabass from Turkey, finding microplastics in 50-63% of fish gastrointestinal tracts, predominantly fibers and fragments from polyethylene and polypropylene.
Occurrence and Characterization of Microplastics in Gilthead Seabream (Sparus aurata) Reared in the Sardinian Coastal Environments, Italy: Implications for Consumer Exposure
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Researchers checked farmed sea bream from Italy's Sardinian coast for tiny plastic bits and found them in about 1 in 4 fish, mostly in the guts rather than the edible muscle (only 8% of fish had plastic in the part we actually eat). While this means eating farmed sea bream does carry some risk of ingesting microplastics, the contamination levels found were quite low—so this study is more of a first step in understanding the issue than a reason for alarm.
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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.