Aquatic Ecosystems

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Across
  1. 3. when dense, cooler, nutrient-rich water from deep water moves towards the ocean surface
  2. 9. a ridge of jagged rock, coral or sand below the surface of the ocean
  3. 11. unwanted catch that is often killed
  4. 12. a land area that channels all snowmelt and rainfall to a singular point
  5. 13. connects marine and freshwater systems
  6. 14. a measure of all the salts dissolved in water
Down
  1. 1. microscopic organisms that float freely in aquatic ecosystems
  2. 2. decreases as you move away from the equator
  3. 4. a measure of acidity
  4. 5. make up 50% of our oxygen
  5. 6. loss of fish stocks caused by new fishing technologies
  6. 7. the variety of plant and animal life in an ecosystem
  7. 8. a measure of dissolved solutes
  8. 10. areas where water covers the soil or is present at the surface of the soil
  9. 15. ecosystems