Fish Farming in Running Water Systems
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Questions and Answers

What is the main advantage of static culture in fish farming?

  • Higher energy consumption
  • Increased water usage
  • Lower capital costs (correct)
  • Less suitable for tilapia farming
  • How does the presence of Avicennia help indicate productive soil in aquaculture areas?

  • It shows high pH levels
  • It indicates a lack of nutrients
  • It suggests excess salinity
  • It indicates low pH levels (correct)
  • What type of water quality is preferred for aquaculture in terms of pH?

  • pH below 5
  • pH above 9
  • pH between 6.5-7.5
  • pH of 7.8-8.5 (correct)
  • Why is it important to have a buffer zone with substantial mangrove growth in aquaculture areas near river banks and coastal shores exposed to wave action?

    <p>To protect against erosion and provide habitat</p> Signup and view all the answers

    What does the presence of nipa and trees with high tannin content indicate in aquaculture areas?

    <p>Low pH levels</p> Signup and view all the answers

    What type of water supply is preferred for aquaculture in terms of quantity throughout the year?

    <p>Steady supply</p> Signup and view all the answers

    Why are static ponds preferred for tilapia farming in countries like the Philippines, Taiwan, and Indonesia?

    <p>Lower water usage</p> Signup and view all the answers

    Why did interest in producing rice and fish together decline in recent years?

    <p>Because of the need for fish-toxic pesticides to protect high yielding rice varieties</p> Signup and view all the answers

    What are the recommended types of risks to consider in integrated risk management in aquaculture?

    <p>Commonly recommended risks in integrated risk management</p> Signup and view all the answers

    What is a characteristic of extensive aquaculture systems?

    <p>Extensive use of natural fertilization</p> Signup and view all the answers

    In terms of inputs and production, which type of aquaculture system adopts a medium level?

    <p>Recirculating aquaculture system</p> Signup and view all the answers

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