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The presence of plastic in the environment has become a major problem for marine ecosystems. The identification of the global micro and mesoplastic uptake by commercial fish populations may allow for a better understanding of their impact. This study aims to determine the presence and composition of plastic in two pelagic fish (Engraulis encrasicolus and Scomber scombrus) and two demersal species (Scyliorinus canicula and Mullus barbatus) from the Alboran Sea (western Mediterranean) to quantify the relationship between plastic prevalence and the environment and feeding behavior in the selected fish species. Samples of these four fish species from sites in the Alboran Sea were studied for ingested plastics. These localized samples were also compared to published values which covered a broader geographical range. Samples from the Alboran Sea study sites showed that the predominant fiber color was black and the predominant plastic polymers were polyethylene and cellulose. At the Alboran Sea study site the highest plastic occurrence was found in S. scombrus, whereas in the published literature the highest occurrence of plastics in digestive tracts was found in E. encrasicolus. The general prevalence of marine plastic pollution and levels of macro- and micro-plastic ingested by commercial fish species in this study support the idea that quantifying plastic presence and composition may be essential to understanding potential impacts on marine ecosystems.
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| http://dx.doi.org/10.1016/j.scitotenv.2022.158025 | DOI Listing |
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