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The Benthic Zone

The Benthic Zone. Chapter 11 Oceans. What adaptations have organisms made to survive in the deepest, darkest parts of the ocean?. Adaptations. Extremely high pressure No sunlight Bioluminescence - create light through a chemical process (i.e. firefly in PA) Large teeth, skulls, & stomachs.

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The Benthic Zone

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  1. The Benthic Zone Chapter 11 Oceans

  2. What adaptations have organisms made to survive in the deepest, darkest parts of the ocean?

  3. Adaptations • Extremely high pressure • No sunlight • Bioluminescence- create light through a chemical process (i.e. firefly in PA) • Large teeth, skulls, & stomachs

  4. Fangtooth Fish

  5. Why do you think bioluminescence occurs?

  6. Light Fish

  7. Bioluminescence • Find food • Attract prey • Defend against predators • Communication • Find mates

  8. How does it work? • Luciferase enzyme reacts with the chemical luciferin • 3rd element present (depending on organism (i.e. ATP, calcium, etc) • Luciferin + Luciferase + Oxygen + Salt  Light + Water

  9. Angler Fish

  10. Other Adaptations • Pressure- 3000-9000 pounds/square inch! • No sunlight • Large teeth, skulls, & stomachs- scientists are still unsure of why organisms have these characteristics

  11. Giant Squid

  12. Dragon Fish

  13. Gulper Eel

  14. Giant Isopod

  15. Long-nosed chimaera

  16. Explain different adaptations organisms made to survive in the deepest, darkest parts of the ocean.

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