Water Quality Assessment and Treatment Systems
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Questions and Answers

What is the main purpose of water treatment systems?

  • To decrease the biological characteristics of water
  • To remove impurities and contaminants from water (correct)
  • To enhance the growth and development of aquatic organisms
  • To increase the radiological characteristics of water
  • Which element is vital for fish respiration and overall health?

  • Dissolved oxygen (correct)
  • Chlorination
  • Bioremediation
  • Ozonation
  • What is the main function of aeration in water?

  • To add oxygen to the water (correct)
  • To reduce stress in aquatic ecosystems
  • To decrease the physical characteristics of water
  • To improve feed conversion in aquatic organisms
  • Which parameter is evaluated to determine if water is suitable for drinking and agriculture?

    <p>Chemical, physical, and biological characteristics</p> Signup and view all the answers

    What plays a crucial role in improving and maintaining water quality?

    <p>Water treatment systems</p> Signup and view all the answers

    What is the primary purpose of aeration devices in fisheries water treatment systems?

    <p>To introduce oxygen into the water for the survival of aquatic organisms</p> Signup and view all the answers

    Which water treatment method is specifically designed to increase the oxygen exchange at the water surface?

    <p>Aeration</p> Signup and view all the answers

    What is the main function of oxygenation pumps in fisheries water treatment systems?

    <p>To ensure adequate dissolved oxygen levels for fish respiration and overall health</p> Signup and view all the answers

    Which characteristic of water quality is crucial for supporting aquatic ecosystems and agricultural use?

    <p>Biological characteristics</p> Signup and view all the answers

    What plays a crucial role in improving and maintaining water quality by removing impurities, contaminants, and undesirable substances from water?

    <p>Water treatment systems</p> Signup and view all the answers

    What is the most effective temperature for killing parasites in fish intended for raw consumption?

    <p>-35 °C for 20 hours</p> Signup and view all the answers

    Which process may reduce the parasite hazard in fish, but not eliminate it?

    <p>Candling and trimming belly flaps</p> Signup and view all the answers

    Which type of parasites are commonly referred to as nematodes, cestodes, and trematodes?

    <p>Helminths</p> Signup and view all the answers

    Which biotoxin is associated with fish poisoning and is also known as 'ciguatera'?

    <p>Ciguatoxin</p> Signup and view all the answers

    What is the species of tapeworm of most concern associated with the consumption of fish?

    <p>Dibothriocephalus latus</p> Signup and view all the answers

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