Intertidal zone
Intertidal zones are coastal areas, the space between high and low tides. They often have rock, sand or mud that is under water at high tide, and above water at low tide.
Rock pools are common on some shores. These areas are often home to many species of crabs, shellfish, shallow water fish and many other animals. Many environmental things affect these areas, for example, waves, sunlight, salinity, wind, and water tide. About 300,000 species have been found in the intertidal zone. These species have to tolerate the pounding of waves, the changes in temperature, and the drying out at low tide.
Intertidal Zone Media
The rocky shoreline of Saint-Malo, northwestern France, with a stripe of the black lichen Hydropunctaria maura at the high tide line
Tide pools at Pillar Point showing zonation on the edge of the rock ledge
A rock, seen at low tide, exhibiting typical intertidal zonation, Kalaloch, Washington, western United States.
A California tide pool in the low tide zone
Beach fishing in Edgartown, Massachusetts
Nutrition (Eutrophic) Pollution in Assateague Island National Seashore, Maryland
Mussels in the intertidal zone in Cornwall, England
A tidal pool in the intertidal zone during low tide, Sunrise-on-Sea, South Africa
Unexplained crumbs of sand that appear to have been deposited around stone by escaping air
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