Fisheries MCQ Quiz - Multiple Choice Questions & Answers Page 2

11. In Heteropneutis fossils the total number of barbels occurring are

1. 2
2. 4
3. 6
4. 8

12. The amount of protein in live body weight of fish is

1. 10-13%
2. 15-20%
3. 18-23%
4. 5-12%

13. In fish body the share of minerals is

1. 1-2%
2. 3-4%
3. 4-5%
4. 5-6%

14. Cartilaginous fishes are:

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

15. pH of vermiculture is kept at

1. Near neutral
2. Alkaline
3. Acidic
4. Highly alkaline

16. If more than single species of fish is cultured at a time, then it is called

1. Monoculture
2. Aquaculture
3. Polyculture
4. Mori culture

17. Pisciculture is rearing and production of

1. Fishes
2. Birds
3. Reptiles
4. Wool yielding animals

18. Inand fisheries are

1. deep sea fishing
2. capturing fishes from sea coast
3. raising and capturing fishes in fresh water
4. oil extraction from fish

19. Isinglass is employed in

1. Preparation of wines
2. Clearing of wines
3. Distillation of wines
4. Preservation of wines

20. Some elasmobranchs have modified pelvic fin for copulation called:

1. Penis
2. Cloaca
3. Clasper
4. None