Zonation in the Ocean
The ocean can be divided into zones.
<ul><li>neritic zone </li></ul><ul><li>shallow water over the continental shelf </li></ul><ul><li>lots of light </li></ul>...
 
ocean light zones <ul><li>photic zone </li></ul><ul><li>sunlit, upper layers of ocean </li></ul><ul><li>made up of  euphot...
ocean light zones <ul><li>euphotic zone </li></ul><ul><li>sunlit, upper layers of ocean </li></ul><ul><li>upper 150 m – de...
ocean light zones <ul><li>disphotic zone </li></ul><ul><li>twilight zone </li></ul><ul><li>enough light to see, but not en...
ocean light zones <ul><li>aphotic zone </li></ul><ul><li>permanently dark </li></ul><ul><li>no sunlight </li></ul><ul><li>...
vertical zonation of the ocean depends on depth
The Epipelagic Zone
The Mesopelagic Zone
The Bathypelagic Zone
The Abyssopelagic Zone
The Hadal or Hadopelagic Zone
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Zonation in the ocean powerpoint

  1. 1. Zonation in the Ocean
  2. 2. The ocean can be divided into zones.
  3. 3. <ul><li>neritic zone </li></ul><ul><li>shallow water over the continental shelf </li></ul><ul><li>lots of light </li></ul><ul><li>oceanic zone </li></ul><ul><li>water over the deep sea </li></ul><ul><li>light only at the surface </li></ul>
  4. 5. ocean light zones <ul><li>photic zone </li></ul><ul><li>sunlit, upper layers of ocean </li></ul><ul><li>made up of euphotic and disphotic zones </li></ul>
  5. 6. ocean light zones <ul><li>euphotic zone </li></ul><ul><li>sunlit, upper layers of ocean </li></ul><ul><li>upper 150 m – depending on where you are </li></ul><ul><li>phytoplankton can survive and photosynthesize here </li></ul>
  6. 7. ocean light zones <ul><li>disphotic zone </li></ul><ul><li>twilight zone </li></ul><ul><li>enough light to see, but not enough for photosynthesis </li></ul><ul><li>extends to a few hundred meters deep </li></ul>
  7. 8. ocean light zones <ul><li>aphotic zone </li></ul><ul><li>permanently dark </li></ul><ul><li>no sunlight </li></ul><ul><li>no photosynthesis </li></ul><ul><li>most of ocean </li></ul><ul><li>extends to sea floor </li></ul>
  8. 9. vertical zonation of the ocean depends on depth
  9. 10. The Epipelagic Zone
  10. 11. The Mesopelagic Zone
  11. 12. The Bathypelagic Zone
  12. 13. The Abyssopelagic Zone
  13. 14. The Hadal or Hadopelagic Zone

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