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Marine litter in the Croatian part of the middle Adriatic Sea: Simultaneous assessment of floating and seabed macro and micro litter abundance and composition.
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Floating and seabed macro- and micro-litter in the Croatian middle Adriatic Sea were simultaneously surveyed, finding average floating micro-litter concentrations of 127,000 particles per square kilometer and seabed micro-litter of 36 particles per 100 g dry weight. The study confirms that plastic pollution is widespread at all depths in this semi-enclosed Mediterranean sea.
In this study, abundance, distribution and composition of floating and seabed macro and micro litter in the Central Adriatic Sea were assessed. Floating macro litter observations were made. Floating and seabed micro litter were sampled with manta net and Van Veen grab, respectively. Micro litter particles visually found under the microscope were chemically analyzed with Fourier Transform Infrared microscope. Average calculated concentrations of floating macro (175 items/km), floating micro (127 thousand particles/km) and seabed micro litter (36 particles/100 g dry weight) show similar values as other published studies from the Mediterranean Sea. A statistically significant (p < 0.01) correlation between the floating micro and macro litter concentrations was found for the sites located in the channel waters. Disagreement between model and observations revealed gaps in our knowledge concerning the sea circulation and litter sources. Simultaneous samplings and observations of marine litter in different marine compartments proved possible, efficient and informative.
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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.