Intro to Fisheries & Aquatic Resources

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Across
  1. 4. long narrow tanks with flowing water
  2. 5. nonnative species that causes harm
  3. 6. the natural home of an organism
  4. 8. position an organism holds in a food chain
  5. 13. buildup of soil in water
  6. 17. straightening or altering natural streams
  7. 18. number of individuals of one species
  8. 21. dissolved gas fish need to survive
  9. 22. organs fish use to breathe underwater
  10. 24. ratio comparing feed input to fish growth
  11. 27. variety of life in an ecosystem
  12. 28. area where land is saturated with water
  13. 29. number of fish per unit of water
  14. 30. living and nonliving things interacting together
  15. 33. a linear sequence showing how energy and nutrients move through an ecosystem
  16. 34. land area that drains water to one location
  17. 35. rapid growth of algae in water
  18. 37. cloudiness of water
  19. 38. farming fish and other aquatic organisms
  20. 39. water-based natural resources used by humans
Down
  1. 1. area where fish are managed or harvested
  2. 2. land along the edge of water
  3. 3. condition of water based on physical and chemical traits
  4. 6. facility where fish are raised
  5. 7. adding fish to a body of water
  6. 9. maximum population an ecosystem can support
  7. 10. an organism that is hunted for food
  8. 11. organism used to measure ecosystem health
  9. 12. farming a single species
  10. 14. an organism that hunts other organisms
  11. 15. practices that reduce disease risk
  12. 16. flat land that floods during high water
  13. 19. a limbless cold-blooded vertebrate animal with gills and fins and living wholly in water.
  14. 20. harvesting fish faster than they can reproduce
  15. 23. species that has a large impact on its ecosystem
  16. 25. process of fish laying eggs
  17. 26. careful use and protection of natural resources
  18. 31. farming multiple species together
  19. 32. species that naturally occur in an area
  20. 36. land area along rivers and streams