Human Impacts on Aquatic Systems

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Across
  1. 5. atmospheric gases which help warm the Earth
  2. 6. use of aquatic and marine food resources which does not deplete or reduce its productivity
  3. 11. significant long-term change to global temperature, precipitation and weather events
  4. 12. use of land and soil to an extent which does not deplete or reduce its productivity
  5. 13. energy sources which can be used indefinitely
  6. 15. excessive capture of fish stocks beyond carrying capacity or ecosystem recovery
  7. 16. increase in average global atmospheric temperature
  8. 18. single-celled photosynthetic aquatic organisms
Down
  1. 1. warming of the planet by gases in the atmosphere
  2. 2. broken down into smaller parts by weathering and sun exposure
  3. 3. increase in concentration of chemicals in each organism over a food chain
  4. 4. buildup of absorbed chemicals in an organism over time
  5. 7. lowering of the pH of oceans (and water bodies) by dissolving certain gases such as carbon dioxide
  6. 8. able to be recycled back to inorganic usable forms by decomposition
  7. 9. chemical management of industrial sulfur and nitrogen oxide production
  8. 10. small to microscopic plastic particles from biodegradable plastics breakdown
  9. 14. excess nutrients in a water body causing dense growth of algae/cyanobacteria resulting in choking of the waterway and a toxic low oxygen environment
  10. 17. non target fish and marine ecosystem species caught as part of commercial fishing