Lesson 4

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Lesson 4

  1. 1. Water Ecosystems
  2. 2. What are water ecosystems
  3. 3. What are water ecosystems 97% of the Earth is Salt Water
  4. 4. What are water ecosystems 97% of the Earth is Salt Water 3% is Fresh Water
  5. 5. What are water ecosystems 97% of the Earth is Salt Water 3% is Fresh Water Water Ecosystems divided into 3 main categories of Organisms Plankton: Creatures that drift freely Nekton: Fish, Turtles, Whales: Large active swimmers Benthos: Made of Scavengers and Decomposers
  6. 6. What are freshwater ecosystems
  7. 7. What are freshwater ecosystems Rivers and streams are running-water Ecosystems Faster-moving bodies of water have more oxygen Slower moving bodies of water support more producers than Faster moving bodies
  8. 8. What are freshwater ecosystems Rivers and streams are running-water Ecosystems Faster-moving bodies of water have more oxygen Slower moving bodies of water support more producers than Faster moving bodies Lakes and Ponds are Standing-Water Ecosystems 3 zones: Shallow water Open Water Bottom
  9. 9. What are ocean ecosystems
  10. 10. What are ocean ecosystems Zones: Intertidal: Shallowest Neritic: Algae Kelp and other producers grow here Oceanic bathyal Abyssal
  11. 11. Where do salt and fresh water meet
  12. 12. Where do salt and fresh water meet Estuary: part salt water and part fresh water
  13. 13. Where do salt and fresh water meet Estuary: part salt water and part fresh water Estuaries usually contain salt marshes

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