Description:
A scoring level with four modalities taken from sFDVent, which captures the ability of a species to move around its environment as an adult. "Sessile" (level 1) indicates this species is permanently attached at the base. "Movement restricted" (level 2) indicates the movement of this species is restricted, for example, a species only lives in (or moves in) a burrow. "Crawler" (level 3) indicates movement is partially restricted or slow, for example a snail or echinoderm that crawls along the substratum. "Freely mobile" (level 4) indicates movement is unrestricted, for example a swimmer, which moves through the water column