Aquatic Ecosystem Notes Outline by jamesdauray


A fillable student notes outline to accompany a lecture on aquatic ecosystems and biodiversity.

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									Environmental Science notes outline

                                     Aquatic Ecosystems
   1. Define salinity -

   2. Freshwater ecosystems _____________ have any salt in the water.

          a. Examples of freshwater ecosystems include: ____________________________


   3. List five abiotic factors affecting life in ecosystems:






Organisms of Aquatic Ecosystems

   4. Define plankton –

          a. Zooplankton -

          b. Phytoplankton -

   5. Define nekton -

          a. Examples include: __________________________________________.

   6. Define benthos -

          a. Examples include: __________________________________________.

   7. Define decomposers -
Environmental Science notes outline

Lakes and Ponds

   8. Lakes, ponds, and wetlands usually form naturally from ___________________.

          a. Define artificial lake -

   9. What abiotic factor most affects the types of organisms present?

   10. Define littoral zone -

          a. Where is it located?

          b. What organisms live there?

          c. What is the energy source of these organisms?

   11. Define benthic zone -

          a. Where is it located?

          b. What organisms live there?

          c. What is the energy source of these organisms?
Environmental Science notes outline


   12. Define eutrophication -

            a. This leads to an increase in the amount of _______________ and ____________.

            b. What eventually happens to these organisms?

            c. The bacteria in the water ____________________________________________.

                   i. Why is this a problem?

            d. The reduced oxygen in the water ______________________________________.

            e. What causes eutrophication?


   13. Define source –

   14. Define course –

   15. Define mouth –

Freshwater Wetlands

   16. Freshwater wetlands are areas of land that are: ________________________________


   17. Where are most freshwater wetlands located in the United States?

   18. Give three important functions of wetlands:



Environmental Science notes outline

   19. Where are marshes usually found?

   20. Marshes have ( trees / no trees ).

   21. Marshes can be:




   22. Where are swamps usually found?

   23. Swamps have ( trees / no trees ).

   24. Where are bogs usually found?

   25. What is so unusual about bogs?

          a. How does this affect decomposers?

          b. What effect does this have on the ecosystem?

   26. What is an estuary?

          a. Why are estuaries so rich in plant and animal life?

Human Impacts on Wetlands

   27. How did people used to feel about wetlands?

   28. What happened as a result of this opinion?
Environmental Science notes outline

   29. What laws are in place specifically to protect wetlands?

   30. Give three reasons why a local government would want to restore wetland:




   31. What is shown below?

Marine Ecosystems

Coastal Zone

   32. Where are they located?

   33. Are these areas considered underwater or dry land?

   34. What creates waves?

Coral Reefs
   35. What is a coral reef made of?

          a. Why does coral need sunlight to survive?

          b. Where are coral reefs usually found?

          c. Why are they so endangered?
Environmental Science notes outline

Sandy Beaches
   36. Beaches can be made of several different types of material. Explain each:

           a. White sand:

           b. Black sand:

           c. Brown sand:

           d. Rocky:

Mangrove Swamps
  37. This is a wetland formed from ( fresh / brackish / salty ) water.

   38. Why is this considered a swamp?

Salt Marsh
   39. This is a wetland formed from ( fresh / brackish / salty ) water.

   40. Why is this considered a marsh?

  41. Where are these usually found?

   42. Why is there so much mud in these ecosystems?

Rocky Shore
   43. Describe what a rocky shore looks like.

   44. Why are the rocks so exposed?


   45. Define tides –
Environmental Science notes outline

   46. What happens during low tide?

          a. When does this occur?

   47. What happens during flood tide?

   48. What happens during high tide?

          a. When does this occur?

   49. What happens during ebb tide?

Open Ocean Zones

   50. Describe the euphotic zone -

   51. Describe the disphotic zone –

   52. Describe the aphotic zone –

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