Dissolved Oxygen in Aquatic Ecosystems

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Across
  1. 6. percentage of the amount of DO that is available in saltwater ecosystems versus freshwater ecosystems
  2. 8. the surface water has _____ ______
  3. 11. the DO in water is ___ bonded to any other molecule
  4. 12. producers use sunlight to synthesize food from carbon dioxide and water while generating oxygen as a by-product.
  5. 17. is needed in order to complete the process of photosynthesis
  6. 18. are the organisms that break down dead organsims
  7. 22. is one molecule needed in the process of photosynthesis
  8. 23. oxygen needed for the process of decomposition
Down
  1. 1. important for respiration by aquatic organisms
  2. 2. the ocean floor where dead phytoplankton, plants, and animals, have fallen to the bottom from the surface water have _____ ______
  3. 3. the action of water which increases the amount of dissolved oxgyen
  4. 4. the process where breaking down something to organic matter
  5. 5. dissolved oxygen come into and out of an aquatic ecosystems by this source
  6. 7. temperature leads to increased ____ which increases the need for dissolved oxygen
  7. 9. ____ temperature causes decreased DO
  8. 10. the energy that is made during the process that occurs in cells of all organisms
  9. 13. besides glucose, what else is made during photosynthesis
  10. 14. One factor the causes a fluctuation of dissolved oxygen levels in aquatic ecosystems
  11. 15. an important factor for dissolved oxygen in aquatic ecosystems
  12. 16. the type of plankton the produces oxygen through photosynthesis
  13. 19. how dissolved oxygen moves into and out of the water
  14. 20. if this factor increases, it decreases the amount of dissolved oxygen
  15. 21. increased salinity causes _____ DO