A cage is a space enclosed with some type of mesh
forming a container for aquatic animals to grow. It is
typically box-shaped or tube like structure with a rope
system which supports the netting material, gives shape
and allows for tying to the raft unit. In box type cages,
the cage is constructed of four panels at the sides and
one bottom panel. Anti-predator nets are deployed around
the cage to prevent entrance of predators such as sharks
and sea lions into the cages. An additional net would be
provided on top of the cage to prevent bird predation
