Ocean Zones

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Ocean Zones

• The ocean is divided into 3 zones.

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Ocean Zones

• Intertidal Zone stretches from the highest high
  tide line on land to the point out on the
  continental shelf that is exposed by the lowest
  low tide line.
• Neritic Zonearea of the ocean that extends from
  the low-tide line out to the point of the
  continental shelf.
• Open-Ocean Zone deepest, darkest area of the
  ocean beyond the edge of the continental shelf.

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Ocean Zones
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Physical Conditions

• Each zone has certain physical conditions that
  help determine what organisms can live in that
  zone.

• Light
• Temperature
• Salinity
• Wave Action
• Pressure

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The Intertidal Zone

• The ocean coasts supports a variety of plant and
  animal life.

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The Intertidal Zone

• Inter between and Tidal relating to the
  tides. So intertidal means between the tides.
• Low Tide its dry and exposed to direct sunlight.
  
• High Tide its covered with water.

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Along the Shore

• Organisms that live in the intertidal zone must
  be able to tolerate the pounding waves and
  changes in temperature and salinity.
• They must also be able to withstand periods of
  being underwater and periods of being exposed to
  air.

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The Intertidal Zone
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Freshwater and saltwater meet on the coasts.

• Estuaries where freshwater from rivers mixes
  with saltwater.
• Wetlands land area that is covered with a
  shallow layer of water during some or all of the
  year.