Filter-feeding mussels ŽMytilus spp.. are one of the important major groups of
seston-feeding bivalves that inhabit estuarine and coastal rocky shore ecosystems
characterized by relatively high and variable abundance of suspended particulate matter
ŽSPM.. Concentrations of suspended particles or seston typically range from a few
milligrams per liter to several tens of milligrams per liter ŽFegley et al., 1992. and can
be primarily Že.g., 70–80% for estuarine conditions. comprised of inorganic matter
ŽStecko and Bendell-Young, 2000..