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Assessment of marine debris on the Belgian Continental Shelf
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Researchers assessed marine debris across beach, sea surface, and seafloor compartments of Belgian coastal waters over two consecutive years, finding that plastic items dominated macrodebris at over 95% of all debris by count. Microplastic concentrations were also quantified in all three compartments, revealing consistent contamination across the Belgian Continental Shelf.
A comprehensive assessment of marine litter in three environmental compartments of Belgian coastal waters was performed. Abundance, weight and composition of marine debris, including microplastics, was assessed by performing beach, sea surface and seafloor monitoring campaigns during two consecutive years. Plastic items were the dominant type of macrodebris recorded: over 95% of debris present in the three sampled marine compartments were plastic. In general, concentrations of macrodebris were quite high. Especially the number of beached debris reached very high levels: on average 6429±6767 items per 100 m were recorded. Microplastic concentrations were determined to assess overall abundance in the different marine compartments of the Belgian Continental Shelf. In terms of weight, macrodebris still dominates the pollution of beaches, but in the water column and in the seafloor microplastics appear to be of higher importance: here, microplastic weight is approximately 100 times and 400 times higher, respectively, than macrodebris weight.
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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.