Hard to say. Oyster larvae are highly mobile and move their bodies around extensively both to eat and to find places to eventually anchor to, but I don’t know how I would compare that to spores or seeds, say, or to lifetime movement; and oysters “move their bodies around” and are not purely static—they would die if they couldn’t open and close their shells or pump water. (And all the muscle they use to do that is why we eat them.)
Are they more or less mobile than, say, oysters?
Hard to say. Oyster larvae are highly mobile and move their bodies around extensively both to eat and to find places to eventually anchor to, but I don’t know how I would compare that to spores or seeds, say, or to lifetime movement; and oysters “move their bodies around” and are not purely static—they would die if they couldn’t open and close their shells or pump water. (And all the muscle they use to do that is why we eat them.)