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Ingested Microplastics in 18 Local Fish Species from the Northwestern Mediterranean Sea

Microplastics 2022 17 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Mel Constant, Philippe Kerhervé, Lisa Weiss Lisa Weiss Lisa Weiss Lisa Weiss Philippe Kerhervé, Philippe Kerhervé, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Philippe Kerhervé, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Mel Constant, Lisa Weiss Lisa Weiss Philippe Kerhervé, Philippe Kerhervé, Philippe Kerhervé, Philippe Kerhervé, Philippe Kerhervé, Wolfgang Ludwig, Wolfgang Ludwig, Mathieu Reynaud, Philippe Kerhervé, Wolfgang Ludwig, Philippe Kerhervé, Philippe Kerhervé, Lisa Weiss Lisa Weiss Philippe Kerhervé, Lisa Weiss Mel Constant, Mel Constant, Lisa Weiss Philippe Kerhervé, Philippe Kerhervé, Wolfgang Ludwig, Philippe Kerhervé, Lisa Weiss Mel Constant, Philippe Kerhervé, Mel Constant, Philippe Kerhervé, Lisa Weiss Mel Constant, Wolfgang Ludwig, Wolfgang Ludwig, Wolfgang Ludwig, Mel Constant, Philippe Kerhervé, Wolfgang Ludwig, Wolfgang Ludwig, Wolfgang Ludwig, Wolfgang Ludwig, Wolfgang Ludwig, Lisa Weiss Philippe Kerhervé, Wolfgang Ludwig, Mel Constant, Wolfgang Ludwig, Wolfgang Ludwig, Lisa Weiss

Summary

Researchers investigated microplastic occurrence and polymer composition in the digestive tracts of 18 coastal fish species from the northwestern Mediterranean Sea, using hydrogen peroxide digestion and FTIR spectrometry with rigorous blank controls, which led to removing 78% of initially suspected particles. Corrected microplastic concentrations ranged from 0.00 to 5.15 items per fish, consistent with other Mediterranean studies, with polymer type variation across species.

Polymers

PA PES PP

Body Systems

Digestive

Plastic waste and its fragments (microplastics, <5 mm) are a global, persistent, and ubiquitous threat for land and marine ecosystems. We have investigated the occurrence and composition of microplastics within 18 coastal fish species of the northwestern Mediterranean Sea. Digestive tracts were digested using hydrogen peroxide, and residues were observed under a stereo-microscope. Suspected microplastics were analyzed with a Fourier Transform InfraRed (FTIR) spectrometer to confirm its plastic nature and to identify the polymer type. A rigorous blank control and FTIR correction was applied, leading to the removal of 78% of the initially sorted and suspected particles. Corrected concentrations range from 0.00 to 5.15 items per fish, a result within the same range than this has been reported for other coastal species previously investigated in this area. Fibers, made of polyester (PES), polyamide (PA), acrylic (A) and polypropylene (PP), largely dominate the microplastic shapes (91%). A single driving force could not be identified, but several species traits (morphology, feeding, and habitat) may influence the number of ingested microplastics.

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