Aquaculture Revision

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Across
  1. 5. Grow lights and pumps both require this form of energy
  2. 6. Aquaponics is considered more environmentally ________
  3. 8. Fish food often contains wild-caught fish ________
  4. 10. Barramundi and prawns are examples of species grown in ________
  5. 11. Organisms that make their own food using sunlight
  6. 14. Overfishing is causing fish numbers in the oceans to ________
  7. 18. The process where bacteria convert ammonia into nitrites and nitrates
  8. 20. Fish farming is also known as this
  9. 21. The country mentioned as having a growing aquaculture industry
  10. 25. The type of farming that grows plants without soil
  11. 26. Nitrites are converted into ________ by bacteria
Down
  1. 1. A farming system that combines fish farming and growing plants without soil
  2. 2. Aquaponics systems use up to 90% less ________ than traditional farming
  3. 3. Plants help clean and ________ the water in aquaponics systems
  4. 4. The less harmful compound that plants absorb as nutrients
  5. 7. Tiny living organisms that convert ammonia into safer compounds
  6. 9. The fish tank water provides ________ for plant growth
  7. 11. A device used to move water around an aquaponics system
  8. 12. Organisms that break down waste and help recycle nutrients
  9. 13. A compound created from ammonia that is still harmful to fish
  10. 15. Organisms that eat other organisms are called ________
  11. 16. Fish and plants depend on each other in a ________ relationship
  12. 17. Aquaponics can help improve global food ________
  13. 19. The API kit is used to test water ________
  14. 20. High levels of this substance are dangerous for fish and should be 0 ppm
  15. 22. A sustainable system where outputs are reused as inputs is called a “closed ________”
  16. 23. Waste produced by fish that can be toxic in high amounts
  17. 24. A common water quality test measured on a scale from acidic to alkaline