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Evaluacija sadržaja mikroplastike u mediteranske dagnje (Mytilus galloprovincialis Lamarck, 1819) uz hrvatsku obalu Jadrana

2020
Katarina Dražić

Summary

This Croatian thesis investigated microplastic occurrence, categories, and size distribution in Mediterranean mussels collected from three locations along the Croatian Adriatic coast. Both wild and farmed mussels contained microplastics, with results varying by location.

In this paper, we investigated the occurrence, categories and length range of microplastics in Mytilus galloprovincialis, Lamarck, 1819. Sampling was performed at three locations the northern (Lim Bay), middle (Sibenik Channel) and southern (Mali Ston Bay) part of the Adriatic Sea. N = 60 (N = 30 wild, N = 30 breeding) individuals were sampled. The results show the presence of microplastics in all analyzed individuals. Microplastic items (fragments, fibers and others) were recovered from the soft tissues of mussels and they varied depending on the item from 0.02 to 4.46 items/g in wild and 0.02 to 5.52 items/g in farmed and from 0.033 to 6.36 items/individual in wild and 0.33 to 5.43 items/individual in farmed. Isolated microplastic particles and materials used in the cultivation were analyzed on a Micro-Raman spectrometer. This first evaluation of microplastic on species M. galloprovincialis in Croatian Adriatic Sea represents a baseline for further research.

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