The lowest zone is the part of the shore exposed only at
the lowest tides. It is made up of the
Infralittoral Fringe and Infralittoral - (Sublittoral) - zones.
Because of the longer submersion period, organisms here do
not have to be as sturdy and adaptive. This is why more organisms
make this zone their home. A variety of algae
grow here like surf grass and sea palm and provide shelter for
many small animals who find plentiful food in this zone.
This area includes the sub tide zone and normally underwater.
It is only exposed by a negative tide and covers approximately
-0.1 to -1.6 feet. The organisms here can only tolerate slight
exposure from the air or sun.