1. Life in the Ocean

2. Why is the Ocean Blue? Absorbed Reflected
Color of the water is determine by the way sunlight is
Absorbed
Reflected

3. How do plants and animals influence life in the ocean?

4. How does the deep water move upward?
Wind blows parallel to the shore, moving surface water offshore.
UPWELLING
Wave action

5. Photosynthesis Reaches the upper 100 m of water
Plankton- free floating microscopic living things
Zooplankton- ANIMALS
Phytoplankton- PLANTS

6. Nekton
Ocean life that can swim
Examples ?

7. Benthos
Organisms that live on the
Ocean Floor.
Examples?

8. Ocean Environments
Benthic
Bottom
Pelagic
Water

9. Benthic Zone Intertidal zone Sublittoral zone Bathyal zone
Abyssal zone
Hadal zone

10. Intertidal Zone Between high and low tides
Example: sea anemones and seeweed

12. Sublittoral Zone Submerged in shallow water
Example: sea stars and sea lilies

14. Bathyal Zone No sunlight zone upto 4000 m deep
Example: Octopus and brachiopods

16. Abyssal Zone No sunlight zone from 4000-6000 m deep
Example: Sea cucumbers and worms

18. Hadal Zone No sunlight zone from below 6000 m deep
Example: microorganisms

20. Pelagic Zone
Neritic zone
Oceanic zone

21. Neritic Zone Abundant sunlight Moderate temperatures Low pressure
Examples?

22. Oceanic Zone
Deep open ocean
4 zones
Marine life decreases with depth