There's notmanyspecieshere, somethinglikeoystersformreefsonformstructure, which a lotofotheranimalsuseplacedinsacksandattachedtometalframes.
They'llsoonbecoveredbytheincomingtide.
A singleoystercanfilter 50 gallonsofwaterperdayasitfeeds, andmanybelievethiscouldevenhave a cleaningeffectonthisestuary, knownas a delicacyofthedinnertable.