“…Abundance of floating plastic litter in the German North Sea has been shown to be higher (Gutow et al, 2018) than measurements in other parts of the North Sea (Tekman et al, 2022), which is consistent with our model. And similarly, surface waters in the SE Bay of Biscay have been shown to contain extremely high concentrations of plastic, with a mean of 998 g km − 2 , and up to 50,012 g km − 2 (Basurko et al, 2022).…”