FISHERIES

1. In fish culture, Costiasis is caused by

(A) Mustigophoresis
(B) Mustigophore
(C) Mastigophore
(D) Mastigophorii

2. Herbivores have good capacity to digest CHO than

(A) Protein and fat
(B) Vitamins
(C) Minerals
(D) None of the above

3. Black gill disease in shrimp is caused due to

(A) High organic content alone

(B) High organic content, debris, ammonia and H2S
(C) Debris alone
(D) H2S alone

4. Example for a Cytozoic parasite is

(A) Diphyllobothrium
(B) Microsporadia
(C) Nematodes
(D) Cestodes

5. Traditional coastal aquaculture systems in India are

(A) Bheries (Kerala) + Pokkali (WB) + Khazan (Goa) +

Khar (Karnataka) + Ghery (Odisha)
(B) Bheries (Goa) + Pokkali (Kerala) + Khazan (WB) +
Khar (Karnataka) + Ghery (Odisha)
(C) Bheries (WB) + Pokkali (Kerala) + Khazan (Goa) +
Khar (Karnataka) + Ghery (Odisha)
(D) Bheries (WB) + Pokkali (Kerala) + Khazan (Odisha) +
Khar (Karnataka) + Ghery (Goa)
6. Control of Water pH within the optimum of 7.5 - 8.5, requires limiting diurnal pH
fluctuation to

(A) < 1.5

(B) < 0.5
(C) <2
(D) < 0.01

7. Loamy soil refers to

(A) Clay + Silt + Sand + Gravel

(B) Clay + Silt
(C) Clay + Silt + Sand + Gravel + Pebbles
(D) Clay + Silt + Sand

8. FCE is the reciprocal of

(A) Protein Efficiency Ratio and expressed in %

(B) Feed Conversion Efficiency and expressed in %
(C) Specific Growth Rate and expressed in %
(D) Feed Conversion Ratio and not expressed in %

9. IMTA means

(A) Internal Multi-Trophic Aquaculture

(B) Integrated Multi-Trophic Agriculture
(C) Integrated Multi-Trophic Aquaculture
(D) Impressed Multi-Trophic Aquaculture

10. Rectangular pond should be oriented north to south in order to maximize the

(A) Sunlight hitting pond

(B) Moon hitting pond
(C) Bottom hitting pond
(D) None of the above

11. The test to know whether the soil has clay or not is called as

(A) Institute Test

(B) Institution Test
(C) Insitu Test
(D) Integrated Soil Test
12. Undersized lobsters are

(A) > 100 g

(B) 100 – 200 g
(C) < 100 g
(D) > 200 g

13. Longer sides should be oriented parallel to prevailing wind direction so that the pond
aeration can be increased in

(A) Circular pond

(B) Triangle pond
(C) Square ponds
(D) Rectangular ponds

14. “Overall Protecting Structure” of a pond is

(A) Secondary dike

(B) Main dike
(C) Tertiary dike
(D) Partition dike

15. Live feeds are considered as

(A) Living Capsules of Nutrition

(B) Non Living Capsules of Nutrition
(C) Aquatic feed
(D) Non aquatic feed

16. Microalgae, grown typically, contain more protein in

(A) Decline phase

(B) Lack phase
(C) Lag phase
(D) Log phase

17. Soil Texture consists of

(A) Silt + Sand + Cobble

(B) Clay + Silt + Sand
(C) Soil + Sand + Seepage
(D) Clay + Sand + Grain
18. Identified Brackishwater area in India is

(A) 0.24 million ha

(B) 112.4 million ha
(C) 11.24 million ha
(D) 1.24 million ha

19. Three major causes of fish diseases are

(A) Parasitic, non parasitic and nutritional factors

(B) Stress, poor intake and poor soil
(C) Poor water quality, environmental pathogens and low resistance of fish stock
(D) None of the above

20. Better production and lower risk of disease outbreaks is noticed in

(A) Foggy water

(B) Yellow water
(C) Green water
(D) Black water

21. In most cases, the haemolymph of healthy shrimp will coagulate as little as in

(A) 10 seconds
(B) 60 seconds
(C) 1 minute
(D) 110 seconds

22. Milk fish prefer

(A) Geosmin
(B) Lumet
(C) Lab lab
(D) None of the above

23. IPN stands for

(A) Internal Pond Necrosis

(B) Infections Pancreatic Necrosis
(C) Infectious Pyramid Necrosis
(D) Infectious Pond Necrosis
24. The three steps involved in Artemia hatching are

(A) Hydration + Decapsulation + Hatching

(B) Decapsulation + Hatching + Hydration
(C) Decapsulation + Hydration + Hatching
(D) Hydration + Hatching + Decapsulation

25. Large scale ‘vannamei’ shrimp farming was introduced in

(A) 2011
(B) 1985
(C) 2009
(D) 1995

26. The scientific name of ‘pearl spot’ is

(A) Lates calcarifer

(B) Etroplus suratensis
(C) Mugil cephalus
(D) None of the above

27. Brachionus is a

(A) Rotifer
(B) Artemia
(C) Moina
(D) Daphnia

28. The specific gravity of fish is

(A) 1.02 - 1.06

(B) 1.03 - 1.04
(C) 1.04 - 1.05
(D) 1.05 - 1.06

29. Fresh water ecology is also called as

(A) Hydrology
(B) Limnology
(C) Meteorology
(D) None of the above
30. Area which remains underwater at high tide and remains terrestrial at low tide

(A) Wetland
(B) Intertidal zone
(C) Beach
(D) None of the above

31. Apex body in agriculture and related allied fields including research and education is

(A) ICAR
(B) IARI
(C) ICMR
(D) IASRI

32. New entrant in Indian mariculture sector is

(A) Marine Pen Culture

(B) Marine Cage Culture
(C) Brackishwater Cage Culture
(D) Freshwater Cage Culture

33. Phyllosoma is a larval stage of

(A) Lobsters
(B) Eels
(C) Mussels
(D) Crabs

34. Fish popularly known as the Aquatic chicken is

(A) Zebra fish

(B) Brown trout
(C) Cobia
(D) Tilapia

35. In India, the first sea cage was established by CMFRI during 2007 at

(A) Chennai
(B) Vijayawada
(C) Gujarat
(D) Visakhapatnam
36. The example for plant derivatives based fish toxicant is

(A) Mahua Oil Cake

(B) Aldrin
(C) Endrin
(D) Super Phosphate

37. First RAS was started in

(A) Korea
(B) China
(C) Japan
(D) USA

38. Major ornamental fish exporting center of India is

(A) Mumbai
(B) Kolkata
(C) Chennai
(D) Paradip

39. An indigenous species of ornamental fish among the following is

(A) Puntius denisonii

(B) Astronotus ocellatus
(C) Carassius auratus
(D) Helostoma temmincki

40. Which among the following is known as Amazon sword plant?

(A) Echinodorus sp.

(B) Cabomba sp.
(C) Eichhornia crassipes
(D) Salvinia

41. Paramoecium can be cultured in a medium containing

(A) Banana peelings

(B) Cabbage
(C) Potato
(D) All the above
42. Moisture content of dry feed will be in the range of

(A) 15-35
(B) > 35
(C) 8-12
(D) <8

43. During transportation of ornamental fishes, the ratio between oxygen and water in the
transport polythene bag will be

(A) 1:3
(B) 3:1
(C) 1:4
(D) 4:1

44. Conditioning of brood fish can be achieved by a varied diet with increased content of

(A) Carbohydrate
(B) Protein
(C) Fat
(D) Minerals

45. Hydraulic radius of a canal is calculated by

(A) Cross section area of a dike / wetted perimeter

(B) Cross section area of a dike / dry perimeter
(C) Cross section area of a channel / wetted perimeter
(D) Cross section area of a bund / wetted perimeter

46. A marginal aquatic plant among the following is

(A) Echinodorus
(B) Najas
(C) Potomogeton
(D) Utricularia

47. Cow dung is the medium for culturing

(A) Mosquito larvae

(B) Rotifer
(C) Infusoria
(D) None of the above
48. Angel fish is a

(A) Bubble nest builder

(B) Egg scatterer
(C) Viviparous fish
(D) Egg depositor

49. Which among the following is a cladoceran?

(A) Brachionus
(B) Chlorella
(C) Daphnia
(D) Isochrysis

50. The process involved in improving nutritional status of live food organisms is

(A) Bleaching
(B) Hydration
(C) Chorion
(D) Bio-encapsulation

51. The addition of which one of the following further buffers the water against pH
changes in algal tanks?

(A) O2
(B) HCO2
(C) O3
(D) CO2

52. Natural collections of algae kept in culture vessels in laboratory is called as

(A) Maintenance culture

(B) Enrichment culture
(C) Unialgal culture
(D) Axenic culture

53. CAA is responsible for granting permission to

(A) Import shrimp broodstock and culture

(B) Culture Alone
(C) Import shrimp broodstock alone
(D) Certification of products
54. Zooplankton samples can be preserved in

(A) Glucose
(B) HCl
(C) Formalin
(D) Spirit

55. Fertilizing the fish pond increases the abundance of

(A) Artificial fish food

(B) Complete fish food
(C) Supplementary fish food
(D) Natural fish food

56. Biofloc Technology (BFT) involves

(A) Autotrophic Bacteria + Nitrogen

(B) Bacteria + Nitrogen + Carbon + Phosphorus
(C) Heterotrophic Bacteria + Nitrogen
(D) Heterotrophic Bacteria + Nitrogen + Carbon

57. Diatoms come under

(A) Cyanophyceae
(B) Bacillariophyceae
(C) Chlorophyceae
(D) Protozoa

58. Example for annelid is

(A) Mosquito worm

(B) Green worm
(C) Tubifex
(D) Yellow Worm

59. Artemia is a

(A) Selective filter feeder

(B) Non selective filter feeder
(C) Partially selective filter feeder
(D) Semi selective filter feeder
60. The "stable tea" rearing system is a culture medium and is made up of a mixture of

(A) Oil, manure and water

(B) Manure and water
(C) Oil and manure
(D) CO2 + C + O2

61. Three tier modular system for mud crab was developed by

(A) CIFA
(B) CMFRI
(C) CIBA
(D) CIFRI

62. Synthesis of organic carbon through the process of photosynthesis is called as

(A) Primary Production

(B) Tertiary Production
(C) Secondary Production
(D) Swarming

63. Fishes that feed on crustaceans are called as

(A) Insectivores
(B) Piscivorous
(C) Carcinophagous
(D) Malacophagous

64. Base of the food chain is occupied by

(A) Zooplankton
(B) Bloom
(C) Benthos
(D) Phytoplankton

65. Area of land within a distance of 2 km HT of sea, river, creeks and back water is

(A) Mariculture Area

(B) Coastal Area
(C) Open Mariculture Area
(D) Off Shore Area
66. The RAS involves

(A) Autotrophic Bacteria + Nitrogen

(B) Heterotrophic Bacteria + Nitrogen + Carbon
(C) Heterotrophic Bacteria + Nitrogen
(D) Bacteria + Nitrogen + Carbon + Phosphorus

67. Bloom of Fragiilaria oceanica is an indication of abundance of

(A) Oil sardine
(B) Anchovies
(C) Catfishes
(D) Indian major carps

68. The adhesive eggs are produced by

(A) Catla
(B) Silver carp
(C) Grass carp
(D) Common carp

69. The scientific name of Silver carp is

(A) Aristichthys nobilis

(B) Ctenopharyngodon idellus
(C) Hypophthalmichthys molitrix
(D) Cyprinus carpio

70. GIFT Tilapia is

(A) Genetically modified fish

(B) Transgenic fish
(C) Genetically improved fish
(D) None of the above

71. Which of the following is not an air breathing fish

(A) Magur
(B) Singhi
(C) Murrel
(D) Pangasius
72. The optimal temperature for cold water fisheries is

(A) 0 – 20 °C
(B) 10 – 20 °C
(C) 10 – 40 °C
(D) 0 – 10 °C

73. Eutrophication of lakes is an indication of

(A) Excessive nutrient enrichment

(B) Optimal level of nutrients
(C) Accumulation of sediments
(D) None of these

74. Optimal range of pH for fish culture is

(A) 6 – 10
(B) 5.5 – 9.0
(C) 5–8
(D) 6.5 – 8.5

75. The most important river system from fisheries point of view is

(A) Brahmaputra
(B) Indus
(C) Ganga
(D) Mahanadi

76. Induced breeding technology for Sea bass was developed by

(A) CIBA
(B) CIFA
(C) CMFRI
(D) CIFE

77. The estuarine water resources of India is estimated at

(A) 2.11 million ha

(B) 1.88 million ha
(C) 1.44 million ha
(D) 1.20 million ha
78. Which one of the following is an example for a fish that shows
anadromous migration?

(A) Hilsa
(B) Eel
(C) Anabas
(D) Bombay duck

79. The largest estuarine system in India is

(A) Godavari
(B) Mahanadi
(C) Narmada
(D) Hooghly Matlah

80. Both lotic and lentic characters are seen in

(A) Rivers
(B) Tanks
(C) Reservoirs
(D) Lakes

81. The indigenous cold water fish group is

(A) Salmons
(B) Mahaseers
(C) Trouts
(D) Tenches

82. The first successful induced breeding of carps was achieved by

(A) Dr. Alikunhi and Dr. Chaudhury

(B) Dr. Sundarraj
(C) Dr. Khan and his group
(D) None of the above

83. Ipomoea is a

(A) Floating weed

(B) Marginal plant
(C) Emergent plant
(D) Submerged plant
84. The phase of rearing spawn to fry stage is called as

(A) Fingerling phase

(B) Nursery phase
(C) Rearing phase
(D) Grow out phase

85. Largest Freshwater lake in the world by surface area is

(A) Lake Superior

(B) Lake Victoria
(C) Vembanad lake
(D) Chilka lake

86. The organ that helps in maintaining buoyancy in fishes

(A) Pelvic fins

(B) Dorsal fins
(C) Swim bladder
(D) Caudal fin

87. Calanus is a

(A) Fish Parasite

(B) Fungus
(C) Zooplankton
(D) Phytoplankton

88. The Indian Environment Protection Act (EPA) was enacted in

(A) 1990
(B) 1986
(C) 1985
(D) 2002

89. Fish oils are rich in

(A) Poly unsaturated fatty acids

(B) Palmitic
(C) Oleic
(D) Squalene
90. A seaweed extract from Red sea weed is

(A) Gelatin
(B) Alginate
(C) Pectin
(D) Agar

91. Solar fish drier has been developed by

(A) CIFT
(B) CFTRI
(C) CIFA
(D) CIFNET

92. IQF means

(A) Internally fully frozen

(B) Individual quick freezing
(C) Improved quality fish
(D) Innovative quality freezing

93. The first Krishi Vigyan Kendra was established in the year

(A) 1979
(B) 1985
(C) 1947
(D) 1974

94. The puffer fish poisoning is due to

(A) Saxitoxin
(B) Tetradotoxin
(C) Ciguatoxin
(D) Yessotoxin

95. The code of conduct for Responsible Fisheries was adopted by FAO in the year

(A) 1990
(B) 1998
(C) 1995
(D) 1996
96. The Coastal Aquaculture Authority of India is/was established under

(A) Act of Parliament

(B) State legislatures
(C) ICAR regulation
(D) None of the above

97. 17 Alpha-Methyltestosterone is a/an

(A) Inducting agent

(B) Estrogen
(C) Cryopreservative
(D) Androgen

98. Soap-oil emulsion is used in fish nursery rearing to eradicate

(A) Weed fishes

(B) Aquatic weeds
(C) Predatory fishes
(D) Aquatic insects

99. Temperature conditions required for sterilizing microbial media by autoclave

(A) Less than 121°C for 10 minutes

(B) 100 °C for 10 minutes
(C) 300 °C for 10 minutes
(D) 121 °C for 15 minutes

100. Red tide in marine waters is mainly caused by

(A) Diatoms
(B) Dinoflagellates
(C) Seaweeds
(D) Sewage

101. Which of the following is called as a Brook trout?

(A) Barilius bola

(B) Barilius bendelisis
(C) Salvelinus fontinalis
(D) Barilius vagra
102. Epizootic Ulcerative Syndrome (EUS) disease is also known as

(A) Bacterial Disease

(B) White Spot Disease (WSD)
(C) Air Bubble Disease
(D) Mycotic Granulomatosis (MG)

103. Rigor Mortis in fish is characterized by

(A) Shrinkage of fish fillet

(B) Shortening, drip loss and tougher texture
(C) Drip loss
(D) All of the above

104. Which of the following is not a diatom?

(A) Chaetoceros
(B) Ditylum
(C) Dinocerous
(D) Biddulphia

105. The non-point source pollution is by

(A) Domestic sewage

(B) Agricultural run off
(C) Industrial effluents
(D) Cargo ship leakage

106. The scientist who led the first Indian expedition to Antarctica

(A) Dr. E.G. Silas

(B) Dr. S.A.H. Abidi
(C) Dr. S.Z. Qasim
(D) Dr. N.R. Menon

107. Theory of continental drift was proposed by

(A) Alfred Wegener

(B) Alfred C. Wallace
(C) Edward Forbes
(D) Matthew Maury
108. The scientific name of Indian dog shark is

(A) Sphyrna zygaena

(B) Rhincobatus djeddensis
(C) Himanthura bleekeri
(D) Scoliodon laticaudus

109. Inbreeding in fish can be reduced by

(A) Giving balanced feed

(B) Phased manuring
(C) Providing good water quality
(D) Increasing effective population size

110. Largest freshwater Man-Made Lake in India

(A) Sulekere Lake, Karnataka

(B) Govind Vallabh Pant Sagar(Rihand Dam)
(C) Chilka Lake, Orissa
(D) Sukhna Lake, Chandigarh

111. The larval stage of freshwater mussel is

(A) Plerulus
(B) Pediveliger
(C) Glochidium
(D) Brachionus

112. Which of the following fish diseases is caused by the bacteria,

Aeromonas salmonicida?

(A) Goldfish ulcer disease

(B) Furunculosis of salmonids
(C) Carp erythrodermatitis
(D) All of the above

113. Which one of the following is a non-essential amino acid?

(A) Histidine
(B) Lysine
(C) Threonine
(D) Alanine
114. The number of sets of chromosomes in a triploid fish is

(A) 2n
(B) 3n
(C) 1n
(D) 4n

115. Government of India legislated the Biodiversity Act in the year

(A) 2010
(B) 2008
(C) 2005
(D) 2002

116. Increase in cell number is referred as

(A) Hyperplasia
(B) Hypertrophy
(C) Metaplasia
(D) Neoplasia

117. Cryopreservation of sperm is done at

(A) – 80 °C
(B) – 196 °C
(C) – 100 °C
(D) – 180 °C

118. A Horizontal slice of a fish is referred as

(A) Fillets
(B) Portin
(C) Steak
(D) Circle

119. The last stage of larva during the development of rock lobsters is

(A) Puerulus
(B) Pediveliger
(C) Glochidium
(D) Brachionus
120. Hypoxanthine in fish is formed from

(A) TMA-O
(B) Urea
(C) ATP
(D) Free amino acid

121. Indicator micro-organism for fecal contamination is

(A) Salmonella
(B) E. coli
(C) Shigella
(D) Staphylococcus

122. The freezing and boiling temperatures of water respectively in °C are

(A) 32 and 212

(B) 0 and 100
(C) 4 and 100
(D) –1 and 100

123. The range of total alkalinity ideal for fish growth is

(A) 0-75 ppm

(B) 50-75 ppm
(C) 75-300 ppm
(D) More than 300 ppm

124. Inbreeding leads to inbreeding depression that results in

(A) Increased heterozygocity.

(B) Decrease in growth and other traits.
(C) Increase in population.
(D) Improved aquaculture performance.

125. Induced breeding of bivalves is done by

(A) Photoperiod regulation

(B) Artificial insemination
(C) Thermal stimulation
(D) Electrocauterisation
126. In fishes, testosterone is produced by

(A) Androgenic gland

(B) Vas deferens
(C) Spermatheca
(D) Leydig cells

127. The copulatory organ in cephalopods is known as

(A) Hectocotylus
(B) Gonopodium
(C) Petasma
(D) Needham’s sac

128. Number of larval stages in Macrobrachium rosenbergii is

(A) 4
(B) 2
(C) 11
(D) 15

129. The anesthetic seen in clove oil and used in transportation of live fishes is

(A) Benzocaine
(B) Phenoxy ethanol
(C) Euginol
(D) Quinaldine

130. The disease caused by deficiency of Ascorbic acid in fishes is

(A) Broken back disease

(B) Necrosis
(C) Septicaemia
(D) Gill rot

131. Pinctada margaritifera produces

(A) Agar Agar

(B) Black pearls
(C) Sodium alginate
(D) Squalene
132. Bacterial spoilage in canned food is caused by

(A) Listeria
(B) Staphylococcus
(C) Clostridium
(D) Shigella

133. Ambergris is obtained from

(A) Shark
(B) Sperm whale
(C) Blue whale
(D) Dolphin

134. Chelating agent used in shrimp hatchery is

(A) Zeolite
(B) EDTA
(C) Oxytetracyclin
(D) Sodium thiosuphate

135. Cotton wool disease in fish is caused by

(A) Penicillium sp.

(B) Branchiomyces sp.
(C) Saprolegnia sp.
(D) Bacteria

136. Acidosis is caused due to

(A) Decrease in sulfate content

(B) Increase in chlorine content
(C) Decrease of calcium salts
(D) Increased iron content in water

137. Ingredients added to enhance coloration of fish feed is

(A) Carotenoids
(B) Gelatin
(C) Cellulose
(D) CMC
138. The larva of Lamprey is

(A) Tadpole
(B) Tonaria
(C) Trochophore
(D) Ammocoete

139. Elasmobranchs remove sodium chloride through

(A) Rectal glands

(B) Gills
(C) Kidney
(D) Liver

140. Placoid scales are present in

(A) Hag Fishes

(B) Lamprey
(C) Salmons
(D) Sharks

141. Puffer fish belong to the family

(A) Mastacembelidae
(B) Tetradontidae
(C) Anguillidae
(D) Muraenesocidae

142. The major osmoregulatory organ in fishes is

(A) Stomach
(B) Liver
(C) Kidney
(D) Gills

143. Lobsters are caught using

(A) Shore seines

(B) Purse seines
(C) Trawls
(D) Traps
144. The most common traditional method of fish preservation is

(A) Chilling
(B) Smoking
(C) Salting
(D) Sun drying

145. Isinglass is employed in

(A) Preservation of wines

(B) Clearing of wines
(C) Distillation of wines
(D) Preparation of wines

146. Physostomous is a term associated with

(A) Intestine
(B) Swim bladder
(C) Gills
(D) Kidney

147. Gel strength is a quality parameter for

(A) Freeze dried products

(B) Alginate compounds
(C) Fish silage
(D) Surimi

148. Carrageenan is obtained from

(A) Kappaphycus alvarezii

(B) Caulerpa racemosa
(C) Sargassum waitei
(D) Gracilaria edulis

149. Spring Viraemia commonly affects

(A) Carps
(B) Mussels
(C) Shrimps
(D) Salmon
150. Fish that deposits eggs in dead molluscan shells is

(A) Rhodeus amarus

(B) Etroplus surratensis
(C) Protopterus aethiopicus
(D) Amia calva
 ANSWER KEY
Subject Name: 608 FISHERIES
SI No. Key SI No. Key SI No. Key SI No. Key SI No. Key
1 C 31 A 61 C 91 A 121 B
2 A 32 B 62 A 92 B 122 B
3 A 33 A 63 C 93 D 123 C
4 B 34 D 64 D 94 B 124 B
5 C 35 D 65 B 95 C 125 C
6 B 36 A 66 A 96 A 126 D
7 D 37 C 67 A 97 D 127 A
8 B 38 B 68 D 98 D 128 C
9 C 39 A 69 C 99 D 129 C
10 A 40 A 70 C 100 B 130 A
11 C 41 D 71 D 101 C 131 B
12 C 42 C 72 B 102 D 132 C
13 D 43 B 73 A 103 B 133 B
14 B 44 B 74 D 104 C 134 B
15 A 45 C 75 C 105 B 135 C
16 D 46 A 76 A 106 C 136 C
17 B 47 A 77 C 107 A 137 A
18 D 48 D 78 A 108 D 138 D
19 C 49 C 79 D 109 D 139 A
20 C 50 D 80 C 110 B 140 D
21 A 51 D 81 B 111 C 141 B
22 C 52 A 82 A 112 B 142 C
23 B 53 A 83 B 113 D 143 D
24 A 54 C 84 B 114 B 144 D
25 C 55 D 85 A 115 D 145 B
26 B 56 D 86 C 116 A 146 B
27 A 57 B 87 C 117 B 147 D
28 A 58 C 88 B 118 A 148 A
29 B 59 B 89 A 119 A 149 A
30 B 60 A 90 D 120 A 150 A