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Definition of Intertidal:
The intertidal zone is the area of the shore that lies between the highest normal high tide and the lowest normal low tide. It is also called littoral zone. [1]

It can be further subdivided into:

  • high tide zone or high littoral zone
  • middle tide zone or mid-littoral zone
  • low intertidal zone or lower littoral zone
This is the common definition for Intertidal, other definitions can be discussed in the article


  1. Pinet P.R. 1998.Invitation to Oceanography. Jones and Barlett Publishers. p. 508