Fisheries Question Bank MCQ on Fisheries Science PDF Download

Important Fisheries Questions and Answers useful for General Agriculture for ICAR and other JRF, SRF, ARS, Ph.D., M.Sc. IBPS, AFO, AO, IFS, NABARD Agri Competitive exams and Tests.

1. The major pollution compounds released in the aquatic ecosystem from oil spillage is–
(A) Nitrogen (B) Hydrocarbon✓
(C) Phosphates (D) Ammonia

2. Optimum salinity requirements for the breeding of Macrobrachium ntalcolmsonii–
(A) 12 - 14 ppt (B) 10 - 15 ppt
(C) 18-20 ppt✓ (D) 25-28 ppt

3. Fishes possessing only maternal inheritance is known as–
(A) Androgenesis (B) Gynogenesis✓
(C) Oognesis (D) Parthenogenesis

4. Scientific name of golden snapper is–
(A) Lutjanus sp.✓ (B) S. guttutus
(C) S. commersoni (D) Lates calcarifer

5. First triploid in fish was produced by–
(A) Swarup et al✓ (B) Palmitter et al
(C) Minimoto et al (D) Zhu et al

6. Fat digesting enzyme is–
(A) Amylase (B) Diastase
(C) Lipase✓ (D) Cellulase

7. The largest quantity of prawns and Shrimps are produced by–
(A) Malaysia (B) India
(C) USA (D) Thailand✓

8. Device used to draw eggs for microscopic study is known as–
(A) Spatula (B) Scalpel
(C) Canula✓ (D) Dracula

9. Eichhornia crassipes was introduced in India from–
(A) Germany (B) Indonesia
(C) USA✓ (D) China

10. Lines joining points of equal depths in oceans are called–
(A) Isobar (B) Isopleth
(C) Isobath✓ (D) Isotherm

11. The most dominant species of krill is–
(A) Sardinops sllgax (B) Engraulis ringens✓
(C) Euphasia superba (D) Nemipierus Japonica

12. A commercially important airbreathing fish in the Indian sub continent is–
(A) Anguilla bengalensis (B) Clupea ganta
(C) Notopterus chitala (D) Heteropneustes chitala✓

13. Fish Fisheries Extension unit in India was started at–

14. Species contributing largest to fish catch in India–
(A) Indian mackerel (B) Sardin✓
(C) Bombay duck (D) Tuna

15. Head quarter of World Fish Centre (earlier ICLARM) is located at–
(A) Malaysia (B) Indonesia✓
(C) Germany (D) USA

16. Indian river prawn is associated with–
(A) M., rosenbergii (B) M. lameraii
(C) M. malcolmsonii✓ (D) M. idea

17. The scientific name of the Indian shad is–
(A) Polijdactsjlus indicus (B) Tenualosa ilisha✓
(C) Rastrelliger kanagurta (D) Harpodon nehereus

18. The magnitude of natural mortality of a fish stock in the sea depends mainly on–
(A) Diseases (B) Predation✓
(C) Death due to old age (D) Fishing efforts

19. Vitamin B12 is–
(A) Alfa-tocopherol (B) Ascorbic acid
(C) Cyano cobalamine✓ (D) Citric acid

20. Highest capture species in world is–
(A) Peruuian anchori✓ (B) Salmon
(C) Mackerel (D) Tuna

21. About 80 % of the worlds fish meal supply comes from–
(A) South America✓ (B) Australia
(C) Europe (D) Africa

22. Isinglass is made from–
(A) Shark fins (B) Fish maws✓
(C) Prawn shell (D) Chitin

23. Chitosan is–
(A) Polysaccharide✓ (B) Polypeptide
(C) Polycyclic aromatic hydrocarbon  (D) Polyester

24. Tenulosa ilisha propagation by–
(A) Induced breeding (B) Wet striping✓
(C) Both (A) and (B) (D) None

25. Active ingredient of Nuvan is–
(C) DDVP✓ (D) Bleaching powder

26. leads all the Indian states in aquaculture production–
(A) W.B.✓ (B) Orris a
(C) Gujarat (D) Kerala

27. The following Oceans exploited nearer to its maximum fisheries potential–
(A) Pacific (B) Atlantic✓
(C) Indian (D) Antarctic

28. The second stage in the food chain of an aq uatic ecosystem is mainly contributed by–
(A) Macrophytes (B) Benthos
(C) Zooplankton✓ (D) Fin fish

29. In which of the following group of phytoplankton silica forms the basis of the skeletal systems ?
(A) Chlorophyceae (B) Cyanophyceae
(C) Bacillariophyceae✓ (D) one

30. Which one of the following is an essential fatty acid ?
(A) Oleic acid (B) Palmitic acid
(C) Arachidonic acid✓ (D) All of these

31. If temperature, salinity increases, what will happen to dissolved oxygen of water?
(A) Decrease✓ (B) Increase
(C) Remain constant (D) None of these

32. Freshwater pearls can be developed in–
(A) Pila globosa (B) Crassostrea niadrasensis
(C) Pinctada jucuia (D) Lamellidens marginal is✓

33. Lentic habitat includes–
(A) Lakes✓ (B) Rivers
(C) Oceans (D) Estuaries

34. Bombay duck is mostly fished by–
(A) Gill net (B) Cast net
(C) Dol net✓ (D) Cover pot

35. The main causative agent of Epizootic Ulcerative Syndrome (EVS) is–
(A) Aphanonnjces inuadens✓ (B) A. hydrophilla
(C) Pseudomonas maxima (D) Myxobolus cyprini

36. Melanosis causes–
(A) Yellow discolouration in frozen pomfrets (B) Blacking of prawns✓
(C) Blue discolouration of crabs (D) White colouration of fish

37. One of the largest breeding grounds for marine turtles is located in–
(A) Orissa✓ (B) Tamil Nadu
(C) Gujarat (D) Karnataka

38. The continental slope extends from–
(A) 200 - 500 m✓ (B) 100 - 200 m
(C) 500 - 700 m (D) 150 - 450 m

39. Which of the following is not a bony fish?
(A) Rohu (B) Catla
(C) Prawn✓ (D) Grass carp

40. Larvicidal fish is–
(A) Gambusia affinis✓ (B) Catla catla
(C) Tilapia (D) Labeo rohita

41. Trichodesmium causes.........which kills the fishes and other organisms
(A) White tide (B) Blue tide
(C) Red tide✓ (D) Yellow tide

42. To estimate population variance which test is used ?
(A) t - test (B) Z - test
(C) F - test✓ (D) Correlation

43. Ambergris is found in–
(A) Some sharks (B) Some whale✓
(C) Dolphins (D) Turtles

44. Phyllosoma is the larvae of–
(A) Bivalves (B) Oysters
(C) Lobster✓ (D) Cuttle Fish

45. Which one of the following is not an exotic species ?
(A) Tinca tinea (B) Osphronentus goraini
(C) ClIaIlOS chanos✓ (D) Cyprilllls carpio

46. Freezing at - 196 0 C is known as–
(A) Rapid freezing (B) Slow freezing
(C) Chilling (D) Cryogenic✓

47. Which day is remembered as first day when induced breeding was carried out in India ?
(A) 10 July, 1957✓ (B) 10 August, 1957
(C) 15 May, 1960 (D) 10 June, 1960

48. Large quantity of tuna is captured in laccadives by employing Methods of fishing–
(A) Trawling (B) Long line
(C) Hook & line (D) Pole and line✓

49. Blood pigment of crustaceans is known as–
(A) Haemoglobin (B) Haemocyanin✓
(C) Phycocyanin (D) Phycobilin

50. Major fatty acid seen in coconut oil is–
(A) Oleic acid (B) Lauric acid✓
(C) Arachidonic acid (D) Citric acid

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