Fisheries MCQ Questions and Answers Quiz

31. The hormone administered in fish diet for promoting maleness in grass carp is

  1. Thyroxine
  2. Oestrogen
  3. Methyltestosterone
  4. FSH

32. The extinct body fishes are:

  1. Chondrichthyes
  2. Osteichthyes
  3. Placoderms
  4. Acanthodians

33. The armored fishes are:

  1. Chondrichthyes
  2. Osteichtliyes
  3. Placoderms
  4. Acanthodians

34. Bony armor fishes are:

  1. Placoderms
  2. Ostracoderms
  3. Elasmobranchs
  4. None

35. For induced breeding in carps this is not used

  1. Ovaprim
  2. Ovatide
  3. Wova-FH
  4. Methyltestosterone

36. The fish live in stagnant water is:

  1. Lepidosiren
  2. Protopterus
  3. Neoceratodus
  4. None

37. Which fish is important for caviar?

  1. Lepidosiren
  2. Protopterus
  3. Neoceratodus
  4. Sturecons

38. The lung fish found in tropical Africa is:

  1. Neoceratodus
  2. Protopterus
  3. Lepidosiren
  4. None

39. Which fish of the following aestivate?

  1. Neoceratodus
  2. Protopterus
  3. Lepidosiren
  4. None

40. One of the following is not a benefit of vermicompost

  1. Protection of water bodies from pollution
  2. Reduction in microbialo activity
  3. increased availability of minerals
  4. increased hydration and aeration
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