Fisheries Multiple Choice Questions and Answers

31. Smooking is used as a technique of

1. Fish preservation
2. Mushroom cultivation
3. Crystalisation of sugar
4. Crop harvesting

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

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

33. The extinct body fishes are:

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

34. The armored fishes are:

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

35. Bony armor fishes are:

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

36. For induced breeding in carps this is not used

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

37. The fish live in stagnant water is:

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

38. Which fish is important for caviar?

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

39. The lung fish found in tropical Africa is:

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

40. Which fish of the following aestivate?

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