(a) Fibres of different colors (c) coloured granule and (f) transparent film from the Yangtze Estuary, sampling site Y1; (b) blue fibre, (d) green and (e) yellow fragments
from the East China Sea, B transect, TCS (trawls closest to the shore). (For interpretation of the references to colour in this figure legend, the reader is referred to the web
version of this article.)