The littoral zone is the beach area between high and low tides. It also refers to the benthic division – between high tide and a depth of 200m (656ft). The larger zone is divided into the eulittoral, from high tide to a 50m (164ft) depth, and the sublittoral, from 50–200m (164–656ft). The lower edge of the eulittoral is the lowest limit at which abundant attached plants can grow. See also littoral fauna.
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