RATHNKUMAR QUE BANK ( JRF PREPARATION )

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1. AQUACULTURE
1. PCR process was discovered by Kary B. Mullis in
a) 1983 b) 1980 c) 1974 d) 1995
2. Adipose dorsal fin present in
a) Claridae b) Heteropneustidae c) Siluridae d) All
3. T. mossambica introduced in India in year
a) 1952 b) 1960 c) 1935 d) 972
4. M. rosenbergii attain first maturity in
a) 4-7 month b)10 month c)12-15 month d) None
5. –---------is a protandrous hermaphrodite
a) Giant perchb) Oyster c) a & b d) None of the above
6. Kakabans are made of horse hair like fibres of ------
a) Indjuk plant b) Coconut leafs c) a & b d) None
7. In India C. batrachus commonly known as
a) Stinging cat fish b) Magur Snakehead d) None of these
8. ------------ is called as aquatic chicken
a) Catla b) Rohu c) Tilapia d) Channa striatus
9. Stickness of common carp egg removed by
a) Salt-carbamide solution b) Milk powder solution
c) a& b d) Formalin solution
10. Marine cat fishes coming under the family
a) Plotossidae b) Aridae c) a & b d) None
11. Number of larval stages in P. monodon is
a) 12 b) 13 c) 15 d) 9
12. The egg size of M. rosenbergii is
a) 0.3 mm b) 0.6-0.7 mm c) 0.9-1 mm d) 2 mm
13. The active compound present in Mahua oil cake is
a) Rotenone b) Saponin c) a & b d) None
14. Which is Euryhaline fish
a) Milk fish b) Sea bass c) a & b d) None
15. ---------- being first among ornamental fish producing country
a) Singapore b) India c) Malaysia d) Japan
16. Which species grow large in size
a) S. serrata b) S. tranquebarica c) P. pelagicus d) P. Sanguinolentus
17. M. roserbergii is a
a) Herbivore b) Carnivore c) Omnivore d) None

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18. Khazan lands are present in
a) Kerala b) West Bengal c) U.P d) Karnataka
19. Which in known as sanitary fish
a) Silver carp b) Grass carp c) a & b d) None
20. Induced breeding and seed production technology for grouper was developed by
a) CIBA b) CIFT c) CIFA d) CMFRI
21. In animal cell, DNA is present in
a) Nucleus b) Mitochondria c) a & b d) None
22. The inactivation of sperm for gynogenesis is done by using
a) UV ray b) X ray c) Dimethyl sulphate d) Above all
23. Gynogenesis occurs naturals in some fishes belonging to the family
a) Poecilidae b) Cyprinidae c) Cyprinodontidae d) None
24. Which method is used for transiting the gene into animal embryo
a) Microinjection b) Electroporation c) a & b d) None
25. Number of larval stages in M. roserbergii is
a) 15 b) 13 c) 11 d) 8
26. Which is called as the mother of probiotics
a) Nitrosomonas b) Latic acid bacteria c) Nitrobactor d) None
27. Which is known as golden Mahseer?
a) T. putitora b) T. tor c) T. mosal d) None
28. Which penaeid shrimp require high protein level in (around 60%) their diet
a) P. vannamei b) P. indicus c) P. japanicus d) P. setiferus
29. Dopamine antagonist present in ovatide is
a) Pimozide b) domperidone c) Tamoxifen d) None
30. Which in mycotoxin
a) Aflatoxin b) T-2 toxin c) Zearalenone d) Above all
31. In shrimp Y organ produce
a) Moulting b) Moulting inhibiting hormone
c) a & b d) None
32. Secondary sexual characters are prominent in carps during
a) Spawning season b) Through the year
c) No secondary sexual character development d) None
33. Induced breeding and seed production technology for sea bass was developed by
a) CIBA b) CMFRI c) CIFT d) CIFRI
34. ---------- is the largest producer of pearl
a) India b) USA c) Japan d) Philippines
35. In India trout hatchery is present in
a) Bhimtal b) Lonavla c) a & b d) None

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36. Which is not a cold water fish
a) Pacific salmon b) Atlantic salmon c) Trout d) None of the above
37. What is the egg size of P. mondon?
a) 0.3 mm b) 0.6 mm c) 0.9 mm d) 1 mm
38. Which non specific defense mechanism is present in shrimp
a) Phagocytosis b) Encapsulation c) Prophenoloxidase system d) All
39. ---------- is used to control EUS
a) CIFAX b) OTC c) a & b d) None
40. Crustacean parasites are controlled by applying --------------- in pond
a) Malathion b) CuSo4 c) Malachite green d) None
41. Which form is toxic to fish
a) NH4
+
b) NH3 & NO2 c) NO3 d) above all
42. Methemoglobinemia is related to ------- toxicity
a) NH4
+
b) NH3 c) NO2 d) NO2-+
43. The fecundity of 1kg grass carp is
a) 1,50,000 b) 2,00,000 c) 82,000 d) None
44. The process of message transfer from DNA to mRNA is called
a) Transcription b) Translation c) a & b d) None
45. P. monodon attain first maturity in
a) 8 month b) 10-12 month c) 13-15 month d) None
46. Which sp. is more favourable for culture?
a) O. niloticus b) T. rendallii c) T. zill d) None
47. The fish egg chorion is removed by using ------ for microinjection
a) NaCl2 solution b) CaCl2 solution c) Trypsin solution d) None
48. Which is a marginal weed
a) Ipomea b) Typha c) a & b d) None
49. Fishes which deposit eggs on sand is called as
a) Lithophils b) Psammophils c) Phytophils d) None
50. Scoliosis and Lordosis disease caused by deficiency of
a) Vitamin A b) Vitamin B c) Vitamin C d) None
51. Chelating agent used in shrimp hatchery is
a) Sodium thiosulphate b) EDTA
c) Oxytetracycline d) None of these
52. Deep sea lobster is
a) Panulirus ornatus b) Panulirus homarus
c) Puerulus sewelli d) None of these
53. Moult Death Syndrome occurs in captive
a) Crabs b) Lobsters c) Prawns d) Fishes

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54. The number of Zoea stages observed in crabs is
a) Four b) Two c) Six d) Five
55. WSSV was first reported in shrimp culture in India in
a) 1994 b) 1992 c) 1996 d) None of these
56. Which of the following is referred as Green crab
a) Scylla oceanica b) S. serrata c) S. paramamosain d) None of these
57. Which fish is known as Poor man’s pomfret
a) Drift fish b) Sail fish c) Sardines d) Mackerel
58. Gear used of Bombay duck fishery is
a) Shore seine b) Gill net c) Dol net d) Gill net
59. Gold fish is a
a) Herbivore b) Carnivore c) Omnivore d) None of these
60. Which of the following is referred as living fossil
a) Lampreys b) Coelacanth c) Hag fishes d) None of these
61. Forked teeth are found in
a) Whales b) Sardines c) Bombay duck d) All the above
62. Hooks and lines are used for catching
a) Prawn b) Tuna c) Mackerel d) None of these
63. Phenomenon of biomagnification is shown by
a) Heavy metals b) Domestic sewage
c) Distillary waste d) None of these
64. Silver carp can be used for controlling
a) Microphytes b) Algal bloom c) Duck weeds d) Emergent weeds
65. Simazine is used for controlling
a) Blue green algae b) Fish lice c) white spot disease d) None of these
66. Cyclomorphosis is very common in
a) Cladocerans b) Copepods c) Mammals d) fishes
67. Pearl is formed by the secretion of
a) Shell b) Gonadal tissue c) Mantle tissue d) Intestinal tissue
68. The chemical used for narcotizing the pearl oyster for conditioning
a) Quinaldine b) MS 222 c) Iodine d) Menthol crystal
69. One molecule of glucose on complete oxidation produces
a) 30 ATP mole b) 38 ATP mole c) 40 ATP mole d) 45 ATP mole
70. The most widely used cryoprotectant in fish gamete preservations are
a) Methanol b) DMSO c) Acetic acid d) None of these
71. The teleost fish has the following class of immunoglobulin
a) IgE b) IgM c) IgA d) IgG

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72. The common marine blue green algae responsible for causing red tide is
a) Spirulina sp b) Nostoc sp c) Trichodesmium sp d) Microcystis sp
73. The important type of reproduction in diatoms is
a) Binary fission b) Microspores c) Cysts d) auxospores
74. Ouch ouch disease is caused by eating fish contaminated with
a) Mercury b) Chromium c) Cadmium d) Zinc
75. Psammon is a group of organisms seen between
a) Sand grains b) Mud particles c) Water droplets d) None of these
76. Which of the following is a bottom soil sampler
a) Casell bottle b) Eckman grab c) Van dorn sampler d) None
77. Indian major carps breeds during monsoon in
a) Ponds b) Rivers d) Lakes All the above
78. Pectoral fins of mature brooders are rough in
a) Male b) Female c) Both Male and Female d) None of these
79. Which aquatic weed is provided to common carps for egg laying
a) Hydrilla b) Lemna c) Azolla d) None of these
80. Which of the following is a Omnivore fish
a) Rohu b) Catla c) Mrigal d) Silver carp
81. Fish that easily breed in pond is
a) Grass carp b) Catla c) Common carp d) None
82. Coracle is operated in
a) Pond b) Ocean c) Reservoir d) all the above
83. Lodhia boat is used in
a) Gujarat b) Tamil Nadu c) Karnataka d) Andhra Pradesh
84. Who is known as Brahma of Indian Fisheries
a) Frederick Nicholson b) Wilson Henry c) Francis Day d) James Hornell
85. Engraulis ringens is commonly known as
a) Chinese anchovy b) Indian anchovy c) Peruvian anchovy d) None of these
86. Seabass are considered as
a) Euryhaline b) Stenohaline c) Thermohaline d) None of these
87. The species of grouper banned for fishing is
a) Epinephelus quoyanus b) E. tauvina c) E. lanceolatus d) None
88. PCR method for detection of Vibrio cholerae was standardized by
a) CIFE b) CIFT c) CCMB d) CMFRI
89. Sixth Indian fisheries forum was held at
a) CMFRI b) NIO c) CIFE d) ICAR
90. Indian International seafood show during 2003 was held at
a) Tamil Nadu b) Mangalore c) Mumbai d) Goa

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91. The scientific name of Flower shrimp is
a) Penaeus monodon b) P. indicus c) P. semisulcatus d) None of these
92. Melanization occurs in shrimps due to the action of
a) Immunostimulants b) Hormones c) Pro-Phenoloxidase d) Immunoprophylaxis
93. Which of the following is commonly referred as “Living capsules of nutrition”
a) Benthos b) Nekton c) Plankton d) None of these
94. Which among the following is a Ostracod
a) Cypris b) Daphnia c) Moina d) Brachionus
95. Bagasse/press mud is a byproduct of
a) Wheat b) Rice c) Sugar d) Fish
96. Captive breeding of sand lobster was successfully carried out by
a) CMFRI b) CIFT c) CIBA d) NIO
97. The minimum over – lap percentage required in a satisfactory double seam of a round can is
a) 20% b) 60% c) 80% d) 50%
98. The deterioration of fats and oils is known as
a) Hydrogenation b) Rancidity c) Saponification d) Autooxidation
99. Highest heat resistance is exhibited by the spores of
a) B. subtilis b) B. stearothermophilus c) C. botulinum d) None
100. Fish proteins are rich in
a) Lysine b) Valine c) Threonine d) All the above
101. A short series of lectures is known as
a) Debate b) Panel c) Symposium d) Brain storming
102. Bacterial haemorrhagic septicaemia in fish is caused by
a) Aeromonas liquifaciens b) A. hydrophila c) Pseudomonas d) Cytophaga
103. Cotton wool disease in fish is caused by
a) Saprolegnia sp b) Branchiomyces sp c) Achlya sp d) Exophila sp
104. Biologically optimal catch is called as
a) MEY b) MSY c) SOY d) None
105. Mahima shrimp feed was developed by
a) CIBA b) CIFT c) CMFRI d) CIFE
106. Which among the following is a non-air breathing cat fish
a) Clarias batrachus b) H. fossilis c) Ompak pabda d) None of these
107. The experimental design suitable for three characters with equal sample size is
a) Split plot design b) Randomised block design
c) Completely randomized design d) Latin square design
108. Sampling method in which population is divided into subpopulation of equal size
a) Systematic sampling b) random sampling
c) Multistage sampling d) Stratified sampling

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109. Diploid chromosome number in IMC is
a) 50 b) 80 c) 58 d) 60
110. Sex linked inheritance in fish was first described by
a) T.J. Pandian b) Johannes Schmidt c) Zhu d) None of these
111. Colchicine is used for suppressing
a) Cell division b) Metaphase chromosomes c) Growth d) None of these
112. First transgenic fish was produced in the year
a) 1980 b) 1982 c) 1985 d) 1990
113. Fishes which reproduce and die within a year are called as
a) Semalparous b) Hermaphrodite c) Parthenogenesis d) None of these
114. Which of the following is a protozoan ciliate
a) Epistylis b) Vorticella c) Trichodina d) Ichthyobodo
115. Red tail disease in shrimp is caused by
a) MBV b) TSV c) WSSV d) IHHNV
116. The concentration of KMnO4 used for treating Argulus infection is
a) 10ppm b) 5 ppm c) 2 ppm 20 ppm
117. The common medium employed for fish cell line is
a) TCBS b) TSA c) MEM d) None of these
118. Behaviour patterns that are expressed outwardly are called as
a) Overt b) Covert c) Stimulus d) Response
119. The ability of an individual to cope with his environment is called
a) Behaviour b) Talent c) Intelligence d) Psychology
120. Cells responsible for synthesizing antibodies are
a) B cells b) T cells c) Both B and T cells d) None
121. Failure in induced breeding can be due to
a) Poor condition of brood b) Lack of food
c) Temperature variation d) Mishandling
122. It is recommended to use the pituitaries from
a) Same Species b) Different Species c) Different Genus d) Different Phyla
123. Inbreeding results in
a) Inbreeding depression b) Improved stock
c) Better off spring’s d) Increase hybrid vigour
124. Exposing milt to high dose of radiation result in
a) Destruction of chromosomes of the sperm cells
b) Chromosomal aberration
c) Destruction of nucleus of the sperm cells
d) Damage to cell walls of the sperm
125. Inter specific and inter generic hybridization produce
a) Viable and fertile off springs b) Non-viable offspring
c) Better growth d) Better survival

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126. Typha is a
a) Rooted higher plant b) Floating plant c) Marine algae d) Parasitic plant
127. To eradicate the weeds, weedicides used are
a) 2, 4-D b) Salt solution c) Dilute formalin d) Pottassium permanganate
128. Algal bloom is caused by
a) Microcysitis b) Seaweeds c) Filamentous algae d) Hydrilla
129. Soil sterilant is effective in destroying
a) Weeds b) Fish fry c) Bottom predators d) Surface blooms
130. Sodium arsenite kills
a) All the submerged weeds b) The larvae c) The fish d) The algae
131. The green water method of algae production is practiced in
a) Fish culture centers b) Macrobrachium culture centre
c) Prawn larvae culture centers d) Artemia culture centers
132. In the algal production centers, Copper sulphate is applied to control rotifers at a rate of
a) 100 ppm once a week b) 10 ppm once a week
c) 0.6 ppm once a week d) 0.1 ppm once in 2 weeks
133. Cyst of brine shrimp hatch out as
a) Mysis b) Nauplii c) Zoea d) Protozoea
134. Decapsulation of Artemia cyst means
a) Removal head of Artemia b) Removal hard shell of Artemia cyst
c) Selection of Artemia cyst d) Disinfection of cysts
135. In order to deactivate toxic residues, the decapsulated Artemia should be dipped in
a) Mild formalin b) Chloric acid c) 2 %HCl d) KMNO 4 solution
136. Chlorella culture thrive well in the salinity range of
a) 40 ppt b) 10-20 ppt c) 1-5 ppt d) None
137. Brachionus is a very valuable live food but early larval stage of fish is unable of ingest because
a) They move very fast b) It does not have bad odour
c) It is easily soluble in water d) cheaper
138. Nitrogen fertilizers are preferred as they are
a) Non toxic to organism b) It does not have bad odour
c) It is easily soluble in water d) Cheaper
139. Major problem in using organic manure is
a) Non availability b) Variability of composition
c) Cost factor d) Handling problem
140. Chicken manure is high in
a) Sodium content b) Nitrogen content c) Trace elements d) Zinc content
141. Food conversion ratio is the
a) Amount of feed required to produce a unit weight gain
b) Amount of fat required to produce 1g of body weight
c) Amount of carbohydrate required to produce 1 g of body weight
d) It is a measure weight loss

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142. The main problem with the use of trash fish as a feed is
a) Cost factor b) Availability
c) Deterioration of water quality and loss of nutrients d) Not palatable to fishes
143. Critical nutrients in the feed are
a) Protein b) Carbohydrate c) Vitamins d) Methionine and lysine
144. The two most important qualities of the fish pellets are
a) Colour and size b) Smell and taste
c) Hardness and water stability d) Cost and availability
145. Salmonella in the feedstuff is killed by
a) Storing in cold storage b) Pelleting
c) Heat treatment d) Keep it under reduced pressure
146. The major advantage of encapsulated diet is
a) Easy to consume b) Water quality is not spoiled
c) Specified nutritional d) Easy to handle
147. Feeding rate is estimated by
a) Multiplying the weight by conversion rate of feed used
b) Estimating the approximate number of larvae to be fed
c) Calculating the biomass
d) Estimating the mortality rate
148. A fish fry of body weight 0.25 g requires food of weight
a) 50% its body weight b) 10% of its body weight
c) 15% of its body weight d) 20% of its body weight
149. The first step requisite for the preparation of stocking pond is to
a) Fertilize the pond
b) Poisoning the pond
c) Clearing of plants and removal of predatory fishes
d) Bottom silt should be removed
150. Carrying capacity of one ha ponds fed with protein rich pellet is
a) About 2,680 kg b) About 5,000 kg
c) About 10,000 kg d) About 20,000 kg
151. Carrying capacity of the pond means
a) The weight limit of the fishes the pond can support
b) Productivity of the pond
c) Biomass of the pond
d) Algae production of the pond
152. Stocking pond of 1.25-2.0 ha can be stocked by 50-100 mm major carp fingerlings at a rate of
a) 10,000 /ha b) 15,000 /ha c) 5,000-8,000 /ha d) 2,000-3,000 /ha
153. Liming of the pond is done to
a) Reduce the pH of the water b) To kill the parasites and raise the pH
c) As a fertilizer d) To increase the productivity
154. Organic fertilizers include
a) NPK b) Urea c) Cow dung d) Super phosphate

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155. The common predatory fish found in the pond is
a) Chanos chanos b) Glassogobius giuris c) Mugil parsia d) S. longiceps
156. The weed fishes found in our ponds are
a) Anabas testudineus b) Ambassis ranga c) L. calbasu d) C. mrigala
157. Fish poison of plant origin are
a) Aldrin b) Nuvan 100 EC c) Thiometon d) Mahua oil cake
158. The important culturable species is
a) Cynoglossus bilineatus b) Colis chuna
c) Macrognathus aculeatum d) Labeo rohita
159. The head quarters of Central Inland Fisheries Research Institute is in
a) Bombay b) Calcutta c) Dhauh d) Barrackpore
160. Primary productivity is measured by using
a) Radioactive tracers like C14
b) Radioactive iodine
c) Radioactive K40
d) Radioactive Cs137
161. Nutrient cycle is a part of
a) Biogeochemical cycle b) N2 cycle c) Phosphorus cycle d) Sulphur cycle
162. The controlling factor of productivity is
a) Colloidal content of the soil b) Acidic bottom of the pond
c) Calcium content of the bottom of the pond d) Cellulose mud of the pond
163. Bicarbonate and carbonates found in water acts as reservoirs of
a) Carbon dioxide b) Carbon c) Carbonic acid d) Hydrocarbons
164. Aquarium water should be aerated during
a) Night b) Evening c) Early morning d) Noon
165. Ammonia concentration is toxic to fish beyond
a) 0.05 mg/lit b) 0.5 mg/lit c) 0.75 mg/lit d) 10 mg/lit
166. The common name of Betta splendens is
a) Angel fish b) Swordtail c) Platy d) Siamese fighter
167. Floating plants are required for breeding
a) Guppies b) Angel fish c) Swordtail d) Gourami
168. Peacock tail is a variety of
a) Swordtail b) Gold fish c) Platy d) Guppy
169. Vallisneria is a
a) Rooted plant b) Floating plant c) Shade plant d) Symbiotic plant
170. Permanent hardness is due to
a) Dissolved sulphates and Chlorides of Calcium and Magnesium
b) Dissolved Calcium oxide
c) Sodium carbonate
d) Carbon dioxide
171. A good example of livebearer
a) L. reticulata b) Gold fish c) Catla catla d) Gourami

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172. Icthyophthirius is a
a) Trematode parasite of fishes b) Protozoan parasite
c) Bacteria d) Copepod parasite
173. Acidosis is caused due to
a) Drastic reduction of calcium salts b) Increase in calcium content
c) Due to iron content of water d) Due to high chlorine
174. Blooms are produced by
a) Dinoflagellates b) Copepods c) Nematodes d) Bacteria
175. Argulus is a
a) Protozoan parasite b) Trematode parasite c) Copepod parasite d) Internal parasite
176. Infectious haematopoetic necrosis (IHN) is a
a) Bacterial disease b) Acute viral disease c) Fungal disease d) Caused by protozoa
177. Level of Tolerance of fish in water for hydrogen sulphide is
a) 1 ppm b) 0.1 ppm c) 0.01 ppm d) 0.001 ppm
178. Each female fish spawner needs__________ of pituitary hormone per kg of fish
a) 10 mg b) 10 mg c) 0.1 mg d) 1 mg
179. Stocking rate of brood fish should be
a) 1,000 – 3,000 kg/ha b) 10,000 – 30,000 kg/ha
c) 100 – 500 kg/ha d) 5,000 – 75,000 kg/ha
180. The fish poison Derris powder has
a) Rotenone b) Arsenic c) Mercury d) Chlorine
181. Aldrin is a
a) Chlorinate hydrocarbon b) Organophosphate c) Fertilizer d) Manure
182. The best food for fry of catla is
a) Phytoplankton b) Zooplankton c) Oil cake d) Wheat bran
183. The rate of ammonia excretion increases 10 times when the temperature in fish fry transport
containers raises
a) 1o
C b) 2o
C c) 8o
C to 15o
C d) 15o
C to 20o
C
184. Sodium amytal is a
a) Antibiotic b) Antibacterial agent c) Anesthetic drug d) Larvicidal
185. Common carp breeders are fed with oil cake and rice bran at a rate of 1 : 1 at
a) 2-3% of the b w b) 5-7% of the b w c) 10% of the b w d) 1% of the b w
186. Hypophysation technique was first used in
a) China b) USA c) Brazil d) India
187. If pituitary of the same species is used it is called
a) Heteroplastic b) Homoplastic c) Isotonic d) Isothermic
188. Average fecundity rate of Indian carp
a) 5 lakh eggs/kg body weight b) 2 lakh eggs/kg body weight
c) 10 lakh eggs/kg body weight d) 50,000 eggs/kg body weight

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189. Hatching ‘hapa’ has
a) One rectangular enclosures b) Two rectangular enclosures
c) Two square enclosures d) Two circular enclosures
190. Macrobrachium rosenbergi breeds in
a) Sea b) Estuaries c) Fresh water d) Salt water
191. Larval food of prawns consists of
a) Fish larvae b) Diatoms and Zooplankton c) Rice bran d) Wheat bran
192. In prawns, eggs hatches into
a) Protozoea b) Nauplius c) Mysis d) Zoea
193. True pearl oysters of Indian seas are
a) Meretrix merretix b) Pinctada fucata c) Trochus niloticus d) C. madrasensis
194. The common spiny lobsters of our coast are
a) S. serrata b) Panulirus homarus c) P. pelagicus d) Parapenaeopsis stylifera
195. Cryoprotective diluents for fish spermatozoa consist of
a) Sucrose, Potassium bicarbonate b) Glutathione
c) Dimethyl sulphoxide and egg yolk d) All
196. Milk fish feeds on
a) Fish larvae b) Pelagic zooplankton c) Small benthic worms d) bottom algae
197. Cirrhinus mrigala is a
a) Surface feeder b) Column feeder c) Herbivorous d) Bottom feeder
198. Hybrid vigor is known as
a) Heterosis b) Polyploidy c) Intergeneric mating d) Cross breeding
199. Methyl testosterone is used for
a) Faster growth b) Better colour in fishes c) Sex inversion d) Preventing deformities
200. Gynogenesis measures development of
a) Disease resistant off springs
b) Springs with exclusive maternal inheritance
c) Off spring with cold resistance
d) Resistance to pollution
201. Pleiotropy is the expression of
a) Secondary consequences of an allele
b) Expression of recessive allele
c) Expression of homozygous character
d) Character for homozygote
202. Polygenic inheritance can be measured in
a) Individuals b) Population c) Groups d) Races
203. Acrosome is found in
a) Tail portion of sperm b) Head of the sperm
c) Near the micropile of the egg d) Adjacent to the mitochondria of the sperm
204. The global ornamental fish trade is word as us $
a) 10 billion b) 5billion c) 1 billion d) 15 million

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205. The sex ratio recommended for live bearer
a) 1:3 b) 2:1 c) 2:2 d) 1:1
206. The eggs of gold fish are
a) Floating b) Adhesive c) Semi bouyant d) none
207. The Gestation period of molly
a) 28 days b) 60 days c) 12 days d) 24 days
208. The temperature requirement for gold fish breeding
a) 15-17o
C b) 19-22o
C c) 35-37o
C d) 25-27o
C
209. The discus can be bread in the pH of
a) 9-10 b) 7-8 c) 3-4 d) 5-6
210. The family which exhibit parental care
a) Cyprinidae b) Cichlidae c) Characidae d) Cyprinodontidae
211. The common name of Vallisneria
a) Elephant grass b) Eel grass c) Hornwort d) Napier grass
212. The presence of adipose fin character for the family
a) Charcidae b) Cyprinidae c) Cichlidae d) Cobitidae
213. The fish which breeds out of water
a) Jumping tetra b) Serpae tetra c) Widow tetra d) Black tetra
214. Dropsy is caused by
a) Virus b) Fungi c) Bacteria d) Algae
215. The feeding habit of Oscar
a) Herbivores b) Omnivores c) Carnivores d) Detritivores
216. The appearance of tubercle is the identification character of male
a) Gold fish b) Oscar c) Fishes d) Discus
217. The fry of which feeds on the mucus of the parent
a) Oscar b) Gourami c) Widow tetra d) Discus
218. Sex reversal is very common is
a) Guppy b) Molly c) Sword tail d) Gambusia
219. The bubble nests are built by
a) Discus b) Gourami c) Barbs d) Danios
220. The male reproductive organ of livebearers are called
a) Gonopodium b) Pearl organ c) Tubercles d) Sexual organ
221. Infusoria is a
a) Mollusc b) Crustacean c) Fisher d) Protozoan
222. Intensive aquariculture the design of the tank should be
a) Square b) Circular c) Rectangular d) Cylindrical
223. All male production of guppies can be obtained using
a) MS 222 b) Estrogen c) 17 α MT d) HCG

14. 14
224. Fin rot is caused by
a) Bacteria b) Virus c) Salmonella d) Fungi
225. The native of discus is
a) Singapore b) South America c) Sri Lanka d) India
226. Argulus is commonly called as
a) Fish louse b) Anchor worm c) Leeches d) Blood worms
227. Natural pairing is common in the family of
a) Cichlids b) Cyprinids c) Anabantids d) None
228. The fish which feed on their own young ones
a) Discus b) Fighter c) Swordtail d) Tetras
229. The sex ratio for gold fish breeding
a) 1:2 b) 2:1 c) 1:1 d) 2:2
230. The best live food for gold fish breeding
a) Earthworm b) Moina c) Mosquito larvae d) Blood worm
231. The bacteria which convert ammonia into nitrite
a) Lactobacillus b) Nitrobacter c) Nitrozomonas d) Pseudomonas
232. Probiotics mainly contains
a) Aspergillus b) Lactobacillus c) E.coli d) Nitrobacter
233. A typical ectoparasite
a) Leeches b) Gyrodactylus c) Dactylogyrus d) Bacteria
234. The coloration in the ornamental fish can be enhanced using
a) MS 222 b) Probiotics c) 17 & MT d) Carotenoids
235. The fish which is mutual to sea anemone
a) Scat b) Clown fish c) Sea angel d) Butterfly fish
236. The gut pH in fishes during digestion is reduced by the secretion of
a) Acetic acid b) Hydrochloric acid c) Formic acid d) Sulphuric acid
237. Digestion of protein and lipid is efficient in
a) Carnivorous fishes b) Herbivorous fishes c) Omnivorous fishes d) Detrivorous
238. The most expensive and important nutrient of the diet of fish is
a) Lipid b) Carbohydrate c) Protein d) Vitamins
239. Plant proteins can be efficiently utilized by
a) Tiger shrimp b) Mud crab c) Fresh water prawn d) Lobster
240. Catabolism of protein leads to the release of
a) Nitrite b) Methane c) Nitrate d) Ammonia
241. Limiting amino acids are
a) Glycine and leucine b) Lysine and methionine
c) Valine and tyrosine d) Proline and lysine

15. 15
242. n-3 fatty acids are rich in
a) Marine fish oil b) Fresh water fish oil c) Vegetable oil d) All
243. The cheapest nutrient energy source is
a) Lipid b) Protein c) Carbohyrate d) Minerals
244. The total number of water soluble vitamins prepaired by fish is
a) 12 b) 11 c) 4 d) 8
245. Anti nutritional factors in plant protein source can be destroyed by
a) Heat treatment b) Cold treatment c) Sun drying d) Chemical treatment
246. Natural antioxidant used in the aqua feed is
a) BHA b) BHT c) Vitamin E d) Ethoxyquin
247. Feed intake can be increased by the addition of
a) Attractants b) Antioxidants c) Hormones d) Pigments
248. The costliest commercial aquafeed is
a) Pigmented feed b) Medicated feed
c) Low pollution feed d) Micro-encapsulated feed
249. The mathematical technique available to nutritionists for selecting best combination of feed
ingredients to formulate diets is
a) Quadratic programming b) Linear programming
c) Best buy technique d) Peterson square method
250. The water stability of shrimp feed should be minimum of
a) 30 min. b) 45 min. c) 2 hr d) 5 hr.
251. Moist feeds are suitable for
a) Sea bass b) Tiger shrimp c) Lobster d) Fresh water prawn
252. The feed ingredient used as binder in the feed formulation is
a) Soybean meal b) Yeast c) Fish meal d) Tapioca flour
253. Carotenoid pigment present in
a) Carrot b) Rice bran c) Wheat bran d) Yeast
254. The optimum number of feed trays recommended for one hectare shrimp pond
a) 2 b) 3 c) 4 d) 8
255. Biological value in feed studies related to
a) Nitrogen b) Lipid c) Carbohydrate d) Vitamin
256. Conjugated linoleicacid (CLA) is a
a) Immunostimulant b) Antioxidant c) Antiseptic d) Antimicrobia
257. Blue disease in shrimp is caused due to
a) Bacteria b) Virus c) Protozoan d) Nutritional deficiency
258. Chronic soft shell syndrome in shrimp is caused due to defidency of
a) Ca and P b) Fe and Cu c) Mg and Mn d) Ca and Fe

16. 16
259. Herbs are incorporated in the aqua feeds to enhance
a) Palatability b) Water stability c) Immunity d) Nutritional value
260. Non-digestible carhohydrate is a
a) Probiotic b) Immunostimulant c) Prebiotic d) Antibiotic
261. Bio enrichment of live food is done to improve the nutritional value of
a) Fresh food b) Compounded feed c) Live food d) Micro feed
262. The most powerful anti-nutritional factor plant ingredient is
a) Phytic acid b) Trypsin inhibitor proteins c) Glucosinolates d) Haemoglutinins
263. The fish nutritional disorder reported due to methionine deficiency is
a) Skin discolouration b) Fin erosion c) Cataract d) Slime disease
264. Mitochondrial genome is
a) A diploid DNA with no inheritance
b) A haploid RNA with maternal inheritance
c) A haploid DNA with maternal inheritance
d) A diploid DNA with paternal inheritance
265. The diploid number of chromosome in Catla catla is
a) 52 number b) 50 pairs c) 25 numbers d) 25 pairs
266. Gynogensis is the development of embryos without genetic contribution from
a) Maternal b) Paternal c) Offspring d) Ovary
267. Cytokines are produced by
a) Viral infected cells b) Lymphocytes and lymphokines
c) Cytotoxic cells d) T helper cells
268. Epitopes are present in
a) Bacterial infected cells b) Fungal infected cells c) Viral infected cells d) None
269. Pinocytosis is a type of
a) Phagocytosis b) Endocytosis c) Exocytosis d) Vacuole formation
270. Hybridoma is a cell formed by fusion of
a) Melanin cells with B lymphocyte b) Meninges cells with antibody producing cell
c) Myeloma cell with T lymphocyte d) Myeloma cell with B lymphocyte
271. Interleukin
a) Promote protein synthesis b) Promote M protein synthesis
c) Promote lymphocyte proliferation d) Promote RBC proliferation
272. ELISA is basically_________ test
a) Haematological b) Immunological c) Calorimetric d) Electrophoresis
273. Primary haemopoietic organ of fish are
a) Thymus and GALT b) Spleen and Thymus
c) Head kidney and Thymus d) Head kidney and spleen
274. Nucleotide is a combination
a) Sugar, phosphoric group and nucleoside b) Nucleoside and phosphoric group
c) Nucleoside and phosphate group d) Nucleoside and sugar

17. 17
275. Lymphokines are
a) Specific cellular component b) Non-specific cellular secretion
c) Non-specific cellular secretion d) Specific cellular secretion
276. Acrosome is a component of
a) Embryo b) Sperm c) Egg d) Chromosome
277. In acrocentric chromosome, centromere is located
a) At the end b) At sub terminal position
c) Chromosome d) Mid way between the centre and end
278. The most abundant RNA type in the cell is
a) m RNA b) r RNA c) t RNA d) Viral RNA
279. The diameter of right-handed helix DNA is
a) 2mm b) 20 Ao
c) 20 nm d) 20 cm
280. Which of the following is quantitative phenotypes
a) Colour b) Sex c) Scale pattern d) Feed conversion
281. When a single gene influence the expression of more than one trait, then the gene is known as
a) Pleiotropism b) Multiple gene c) Epistatic gene d) Multiple alleles
282. The colour patteras in male Poecilia reticulata is a type of
a) X-linked inheritance b) Lethal gene inheritance
c) Autosome inheritance d) Y-linked inheritance
283. Hermaphrodites are found among modern teleost fishes of family
a) Carangidae b) Lutjanidae c) Serranidae d) Siluridae
284. In WZ-system of sex determination the female has
a) WZ b) ZZ c) WO d) XX
285. Sex of Megupoilon aporus (file fish) is determined by
a) XO-system b) ZY-stem c) Multiple sex chromosomes d) WZ-system
286. Metagamic sex determination is due to
a) Sex chromosome b) Sex ratio c) Autosomes d) Transgenesis
287. Inbreeding depression is controlled by
a) Selective breeding b) Induced breeding c) Mass breeding d) Cross breeding
288. Heterosis is found in fishes that are
a) Hormone treated b) Hybridized c) Haploid chromosome injected d) None
289. Quality of milt is evaluated by
a) Volume of milt b) Spermatocrit value, and sperm cell count
c) Sperm motility d) All the above
290. Chromosome are observed during
a) Anaphase b) Telophase c) Metaphase d) Interphase
291. Metaphase of cell division is arrested by
a) Trisodium citrate b) Glycerol c) Colchicine d) Glycosteroid

18. 18
292. MBV is diagnosed by the squash method using the stain
a) Malachite green b) Giemsa stain c) Ziel Nielston stain d) Gram stain
293. Giemsa stain is a
a) Specific stain b) Differential stains c) Simple stain d) None
294. The greatest O2 consuming organelle of the cell is
a) Lysosome b) Golgi apparatus c) Mitochondria d) Ribasomes
295. The close association of 2 or more genes on a single chromosome usually inherited is called
a) Linkage b) Crossing over c) Pleotropism d) Epitasis
296. The cell membrane of gram positive bacteria contain
a) Only peptidoglycan layer b) Only lipopolysaccharide layer
c) Peptidoglycan and an outer membrane d) Peptidoglycan layer and lipopolysaccharide layer
297. Tripeptides contain ------- number of peptide bonds
a) 1 b) 2 c) 3 d) Zero
298. The complete active enzyme is termed as
a) Apoenzyme b) Prosthetic group c) Cofactor d) Holo enzyme
299. Fatty acids are represented by the formula R-COOH, where R stands for
a) Alkaloid group b) Aldehyde group c) Alkyl group d) None
300. The fatty acid that are not synthesized by the body is called
a) Non-EFA b) Synthetic fatty acid c) Non-synthetic fatty acid d) EFA
301. Pepsinogen is secreted by
a) Stomach b) Most cell of lives c) Small intestine d) Buccal cavity
302. The peptide chain termination in the protein synthesis is done by the genetic code
a) AGU b) UAA c) CAU d) ACU
303. Osmosis is the movement of solvent from
a) High concentration to low concentration b) Low concentration to high concentration
c) One phase to another phase d) Solid phase to liquid phase
304. Neoplasm is synonym of
a) Tumour b) Cell death c) Cell division d) Blood plasma
305. Normal calcium metabolism is affected by the heavy metal
a) Zinc b) Cadmium c) Mercury d) Carbon
306. The gonadotropin is a
a) Steroid hormone b) Peptide hormone c) Cholesterol rich hormone d) Enzyme
307. Transcription is the process of conversion of
a) DNA to r RNA b) DNA to m RNA
c) DNA to t RNA d) DNA to mitochondrial DNA
308. Feminization in fishes is achieved mainly by using
a) Androgen b) 17α –MT c) Estrodiol 17 β d) Ethyl testosterone
309. Which of the following is a mutagen
a) Nitric acid b) Nitrous acid c) Nitrogen dioxide d) Nitrogen gas

19. 19
310. Adjuvant is a substance that
a) Enhance immune response b) Inhibit immune response
c) Degrade immune response d) None
311. Lymphocytes carrying neither T-cells nor B-cell markers are called
a) Null cell b) Hepatic cells c) Germ cell d) Chimera
312. An organ, molecule or cell that has the same function as another but is of different evolutionary
origin
a) Synonym b) Analog c) Progeny d) Phylogeny
313. Fishes which are true hermaphrodites
a) Cyprinidae and cyprinidontidae b) Siluridae and sisoridae
c) Anabantidae and cobitidae d) Serranidae and sparidae
314. A fish which are parthenogenetic
a) Anabas testudineus b) Glossogobius sp. c) Oryzias latipes d) Poecilia formosa
315. Ovary is enclosed
a) Cystovarian b) Mesovarian c) Gymnovarian d) Mesorchia
316. CETPs stands for
a) Centre for ethological treatment procedure b) Common effluent treatment plants
c) Common ecological treatment process d) None of these
317. What is the life span of Artemia / sea monkey;
a) 4 months b) 8 months c) 6 months d) 2 months
318. Precautionary principle and the “polluters pays principle” are essential features of
a) Sustainable development b) EEZ c) CRZ d) Subsistence fishing
319. Institute which initiated a research programme in 1999 to develop captive brood stock and
other commercial species of peneaid shrimps like P. indicus, P. merguiensis and Metapenaeus
japonicus under the NATP
a) CIFE b) CIBA c) CMFRI d) NIO
320. The partial pressure of oxygen in dry air is:
a) 58.5 mm Hg b) 159.2mm Hg c)159.5mm Hg d)159.9mm Hg
321. Ideal slope of pond is
a) 2:1 b) 1:1 c)1:2 d)1:2)5
322. An excavation more than……… in the ground level is uneconomical
a) 50cm b)70cm c)100cm d) 60cm
323. Wind mill is …………Type of pump
a) Centrifugal b) Reciprocating c) Turbine d) Submersible
324. Paddle wheel aerators are ------------- type of aerators
a) Gravity b) Surface c) Turbine d) Submersible
325. The top of the embankment is called
a) Crest b) Berm c) Freeboard d) None

20. 20
326. Stocking density of nauplii of shrimp in larval rearing tanks is
a) 0.1 million/litre b) 10,000/litre c) 1,000/litre d) 100/litre
327. The rate of filtration in rapid sand filter is --------- litre/sq.mt/hr
a) 500 to 1000 b) 1000 to 2000 c) 2000 to 4000 d) 4000 to 6000
328. Raceways are -------- Based aquaculture farming system
a) Water b) Land c) Re-cycling d) Integrated
329. An imaginary line joining the points of equal elevation is called as
a) Contour b) Free board c) Crest d) Trough
330. Scientific name of European sea bass is
a) Sparus aurata b) Morone sexatilis c) Dicentrarchus labrax d) Moreone chrysops
331. Scientific name of Ayu (a popular fish in Japan) is
a) Plecoglosus altevelis b) Glugea plecoglossi
c) Onchorhyncus nerka d) Epinephelus suillus
332. Anguilla anguilla spawns in
a) Bay of Bengal b) Arabian sea c) Sargasso Sea d) South china sea
333. The causative agent of Proliferative kidney disease is
a) A. salmonicida b) Tetracapsula bryosalmonae c) Myxobolus spp. d) None of these
334. Amylodinosis is caused by
a) Bacteria b) Fungi c) Leeches d) Protozoa
335. When the area of hemorrhage is less than 2mm, it’s referred to as
a) Ecchymotic b) Petechiae c) Paintbrush d) Hematoma
336. Spirulina sp. is a
a) Bacteria b) Blue algae c) Brown algae d) Cyanobacteria
337. To impart color to salmon flesh, aquaculturists use
a) Asthaxanthin b) Beta carotene c) Lycopene d) Phycocyanin
338. Anti-DIG antibody solution is used in
a) In situ Hybridisation b) PCR c) Western Blot d) Northern Blot
339. Who demonstrated the semi conservative nature of DNA replication?
a) Inman R.and Schn’s M b) Meselson M. and Stahl F
c) Okazaki R d) Sanger and Stuart
340. Who discovered transponsons (“Jumping genes”)
a) Abelson b) Harvey c) Candey d) McClintock
341. What is the approximate size of the human genome?
a) 3 Billion bases b) 10 Billion bases c) 30 billion base d) 10 million bases
342. Which of these disease causing bacteria was discovered by Robert Koch?
a) Bacillus anthrax b) Shigella dysenteriae c) Vibrio cholerae d) None of the above
343. Smallest fish genome
a) Tetraodon tersinaria b) Tetraodon cutcotia
c) Tetraodon perifiria d) None of the above

21. 21
344. What are monosaccharide components of the milk disaccharide Lactose?
a) Glucose and galactose b) Fructose and glucose
c) Glucose and manose d) glucose and glucose
345. What is the biosynthetic precursor of ketone bodies?
a) Acetyl COA b) Succinyl COA c) Adenyl COA d) None
346. What is the average time it taken to Mycobacterium tuberculosis to divide
a) 24 minutes b) 24 seconds c) 24 hours d) 24 days
347. Who first determined the primary structure of insulin?
a) Edman b) Flipper c) Sanger d) George
348. What are the Svedberg values for the subunits of the 70S ribosomes of E. coli?
a) 50S and 30S b) 50S and 40S c) Pyridoxine d) Pantothenic acid
349. Vitamin B2 is also known as
a) Riboflavinb) Thiamin c) Pyridoxine d) Panthothenic acid
350. What is the major effect of Interleukin-1 (IL-1) on the immune response?
a) It activate helper T cells b) It active killer T cells
c) It activates B cells d) All of the above
351. What is the approximate size of bacteria?
a) 0.01 mm b) 0.001 mm c) 0.1 mm d) 0.0001 mm
352. What is the approximate size of a white blood cell?
a) 1.0 mm b) 0.1 mm c) 0.01 mm d) 0.001 mm
353. Which of these three codons is a stop (termination) codon
a) UGA b) UAU c) UAC d) None of the above
354. In addition to AUG what initiation codon is recognized by prokaryotes
a) ACG b) AUC c) GUG d) None of the above
355. Linkage was first discovered by
a) Bateson at 1905 b) Morgan at 1911 c) Pandian at 1911 d) None of these
356. Tick out the odd:
a) Sturgeon b) Salmon c) Eels d) Hilsha
357. The present threat for India in connection with world aquaculture is
a) Taiwan b) China c) Bangladesh d) Indonesia
358. Clarius batrachus is having
a) X-Y gene b) W-Z gene c) X-0 gene d) Y-0 gene
359. Crystal violet is used a
a) Positive stain b) Negative stain c) Fixative d) None
360. EDTA is used as
a) Anti-chelating agent b) Binding agent c) Coloring agent d) Clotting inhibitor
361. Perches are mostly caught in -------------- maritime zone of India
a) North east b) South east c) North west d) South west

22. 22
362. Naturally occurring hybrid fish
a) Rohu – catla hybrid b) Rohu – mrigal hybrid c) Catla-mrigal hybrid d) None
363. The estimated potential production of India
a) 8.0 mm t b) 8.5 mm t c) 10.0 mm t d) None of the above
364. Chambal is the tributary of
a) Ganga b) Narmada c) Yamuna d) Godavari
365. Lonavela hatchery is a center for breeding of
a) Trout b) Mahseer c) Salmon d) None of the above
366. Chocholate mahaseer is found in -------- north-eastern state
a) Meghalaya b) Manipur c) Assam d) Sikkim
367. Hilsha ilisha is a major catch in
a) West Bengal b) Orissa c) Maharastra d) Gujarat
368. More than 40% of carbohydrate leads to
a) Increase growth in fish b) Retard growth in fish
c) No effect d) Cause disease
369. The total shrimp potential area of India is
a) 1.2x106
ha b) 1.5x106
ha c) 1.9x106
ha d) None
370. Productivity in reservoir is
a) 30-40 kg/ha b) 10-20 kg/ha c) 40-50 kg/ha d) 50-60 kg/ha
371. International Fish Farmers Day is
a) 10th
July b) 21st
July c) 10th
Nov d) 21st
Nov
372. Soft water lakes and ponds are
a) Poor productive b) Very highly productive
c) Highly productive d) None of the above
373. At pH 4.5 – 8.3 CO2 occurs in the form of
a) Free CO2 or bicarbonate b) Carbonate
c) Free CO2 carbonate d) All the above
374. Operational period of nursery pond is
a) 15-20 days b) 25-30 days c) 10-15 days d) 20-25 days
375. Quick lime contains -------- CaO
a) 98% b) 80% c) 50% d) 70%
376. Bulans is
a) The deepening part of bundh b) The shallow part of bundh
c) Both of the above d) Not at all related with bundh
377. Stocking density’s ratio in different pond i.e. Nursery: Rearing: Grow out is
a) 1:40:1280 b) 1:20:1000 c) 1:20:1280 d) 1:30:1280
378. Which fish can digest cellulose?
a) Tilapia b) Magur c) Rohu d) Catla

23. 23
379. How many % of lipid can be digested by fish
a) 80-90% b) 70% c) 10% d) 30-35%
380. Which of the following is the stocking density for cage culture
a) 100-300/m2
b) 300-500/m2
c) 500-800/m2
d) None of the above
381. Sewage contains ------% water and ---------% organic matter
a) 99, 1 b) 80, 20 c) 90, 10 d) 95, 5
382. CRZ was first started in
a) 1975 b) 1986 c) 1991 d) 1995
383. Which nutrients are limited in freshwater and marine water
a) Ca, P b) N, P c) P, N d) Ca, N
384. The desired discharge level of the BOD, COD is
a) 25 ppm; 30ppm b) 20 ppm; 20 ppm c) 30 ppm; 40 ppm d) None of the above
385. The concept of composite fish culture was brought up by
a) CIFA b) CIBA
c) CIFRI d) Rajiv Gandhi Center for freshwater aquaculture
386. The standard combination of N:P:K is
a) 10:8:4 b) 18:8:4 c) 18:8:4 d) 18:8:2
387. Liquid excreta urine contain more water N2, K but less
a) P b) P, Ca c) Ca d) None
388. Poultry excretes ---------- of their body weight
a) 2% b) 5% c) 3% d) 4%
389. Mahua oil cake contain
a) 5-6% saponin b) 9-10% saponin c) 4-15% saponin d) None of the above
390. Tea seed cake toxicity lasts for
a) 10-12 days b) 20-30 days c) 40-50 days d) 5-7 days
391. The dose of bleaching powder to be applied in pond is
a) 25-30 ppm b) 15-20 ppm c) 40-50 ppm d) 25-40 ppm
392. Which chemical is used to control abnoxious gas
a) Zeolite b) CaOCl2 c) Alum d) CaCO3
393. If pH is 6.5 – 7.5 then in which proportion the lime will be used
a) 500 kg/ha b) 400kg/ha c) 200kg/ha d) 700 kg/ha
394. In race way culture water flow is -------- liter/min/kg
a) 0.5 – 1 b) 5 – 10 c) 3 -6 d) 2 – 3
395. Brown Trout was introduced in India in
a) 1906 b) 1805 c) 1806 d) 1804
396. NACA is situated in
a) Philippines b) Bangkoy c) Malaysia d) Thailand

24. 24
397. DDVP in the name of NOVAN 100 EC was manufactured by
a) CIBA b) CIFA c) CIFRI d) CIFT
398. Algal weed can be controlled by KMnO4 at the rate of
a) 5.5 ppm b) 2.5 ppm c) 2.6 ppm d) 7.2 ppm
399. Cattle dung consists of ----, ------- and ------ percent of N2, P2O5 and Potash respectively
a) 5, 0.1 and 2.5 b) 0.5, 0.1 and 2.5 c) 0.5, 0.4 and 0.5 d) 0.5, 0.1 and 0.5
400. Pulu rearing temperature is
a) 10o
C b) 20o
C c) 32o
C d) 26o
C
401. Trichodesmia is
a) N2 fixer b) Phosphate solubiliser c) Compost acceletor d) None of the above
402. Which animal has considerable amount of phosphorus in urine
a) Cattle b) Swine c) Poultry d) Pig
403. Red tide phenomena is caused by
a) Nitzschia b) Gymnodium c) Trichodesmium d) None
404. Truly freshwater prawn is
a) Scampy b) M. choprai c) M. malcomsonii d) None
405. Gracilaria is a
a) Brown algae b) Green algae c) Red algae d) None
406. The pokkali paddy field in Kerala has an area of
a) 7440 ha b) 7000 ha c) 6500 ha d) 4400 ha
407. Stocking density of fish fingerling in fish cum duck farming is
a) 6000-8000 ha b) 8000-10000 ha c) 10000-15000 ha d) 100000-150000 ha
408. White pekin and Muscovy are
a) Meat type poultry b) Egg type poultry c) Meat type duck d) Egg type duck
409. Protein content of spirulina is
a) 50-60% b) 60-70% c) 70-80% d) 80-90%
410. Blue – green algal toxins are
a) Neurotoxic b) Hepatotoxic c) a & b d) None
411. One gram of Artemia cysts produce about ------- million naupii
a) 0.2 b) 0.4 c) 1 d) 2
412. Which of the following belongs to Halobacterium
a) Pseudomoras b) Sarcina c) Basillus d) Moraxella
413. CICEF is situated in
a) Mumbai b) Delhi c) West Bengal d) Bangalore
414. The first success in inducing breeding of Indian major carps by injections of fish pituitary
hormones in the year
a) 1957 b) 1952 c) 1967 d) 1987

25. 25
415. Match List – I correctly with List – II and select your answer using the codes given below
List I List II
a) Floating weed 1) Typha
b) Emergent weed 2) Lemna
c) Submerged weed 3) Eichhornea
d) Surface weed 4) Vallisneria
Codes:
A B C D
a) 2 1 4 3
b) 1 3 4 2
c) 2 4 1 3
d) 3 1 4 2
416. Common name for Eichhornea is
a) Water lilies b) Water hyacinth c) Arrow head d) Pond weeds
417. Macrobranchium rosenbergii is a
a) Fresh water prawn b) Giant fresh water prawn c) Tiger prawn d) White prawn
418. Which one the following is correctly matched
a) Catla catla - Giant freshwater prawn
b) Labeo rohita - Catla
c) Cyprinus carpio - Common carp
d) Macrobranchium rosenbergii - Rohu
419. Commonly used anaesthetic drugs
a) DMSO b) MS222 c) Quinoldine d) None
420. Among the following which fish is called as aquatic chicken
a) Catla b) Rohu c) Tilapia d) All
421. Which river passes through the state of Tamil Nadu
a) Mahanadi b) Ganga c) Cauvery d) Yamuna
422. Rohu is a
a) Voracious feeder b) Column feeder c) Bottom dweller d) Omnivorous
423. The criteria for selecting site for pond culture mainly depends on
a) Species to be cultured b) Targeted production level
c) Physiological requirement of the species d) All the above
424. The soils having pH value equal to or less than 4 are called as
a) Sand soil b) Loamy soil c) clayey soil d) Acid sulphate soil
425. Chemical name for dolomite is
a) Calcium carbonate b) Calcium magnesium carbonate
c) Calcium oxide d) Calcium hydroxide
426. Turbidity in pond water can be measured easily by
a) Salinometer b) Secchi disk c) pH meter d) Refractometer
427. For intensive farming commonly used farm type is
a) Circular shape b) Rectangular shape c) Square shape d) a & c

26. 26
428. The main purpose of peripherial dike is
a) To provide over all protection to the form from flood, storm etc
b) To retain water for culture operation
c) a & b
d) To facilitate the proper drainage of waste water
429. In drainage channel recommended side slope for clay soil is
a) 1:5:1 b) 2:1 c) 3:1 d) 1:1
430. Which type outlet gates are more efficient in draining bottom water in the pond is
a) Monk sluice b) Open sluice c) Pipes made structure d) None
431. Example for positive displacement pump is
a) Centrifugal pump b) Propeller pump c) Air lift pump d) Reciprocating pumps
432. The most commonly used aeration device for aeration in aquaculture pond is
a) Splasher aerator b) Paddle wheel aerator c) Bubbler aerator d) Surface aerator
433. Which form of ammonia more toxic to fish
a) Ionized ammonia b) Un-ionized ammonia c) Ammonium chloride d) None
434. Hardness of water refers to
a) Sum of calcium and phosphorus concentration
b) Sum of calcium ions concentration
c) Sum of magnesium and Nitrogen concentration
d) Sum of calcium and Magnesium
435. Compute the power requirement for pumping 1200 cum/hr against a head 10m, assuming
a pump efficiency of 65%
a)100BHP b) 65 BHP c) 68 BHP d) 70 BHP
436. Consider the statements:
I) Mettur dam was the first reservoir where a fish seed farm was established in the 1940
II) Mettur dam is located in Tamil Nadu
III)Mettur dam is located in kerala
Of the statements
a) I alone correct b) I & II is correct
c) I, II & III is correct d) II & III is correct
437. Nagarjuna sugar reservoir located at which state
a) Tamil Nadu b) Andhrapradesh c) Uttra Pradesh d) Bihar
438. The most common fungus attack fry, fingerlings and adult fish is
a) Saprolegnia parasitica b) Branchiomyces sp c) Aspergillus sp d) Trichodina indica
439. The commonest protozoan disease in fresh water fishes
a) Eye diseaseb) Finrot c) Dropsy d) White spot disease
440. Consider the statements
I) Hooghly matlah estuary is the biggest estuary of the country
II) It is located in the state of west Bengal
III) The fish fauna of hoogly – matlah estuary has been classified into residents and migrants
Of the statements
a) I & II is correct b) II & III is correct
c) I & III is correct d) All are correct

27. 27
441. India has a coastal length of
a) 8143 km b) 1000km c) 1250 Km d) 7650 km
442. Which Institute engaged in culture of fish in brackish water region
a) CMFRI b) CIFT c) CIBA d) CIFE
443. The most important disease in farmed finfish is
a) Streptomysis b) Edwardsiellosis c) EUS d) Vibriosis
444. Larval stages of mussel is
a) Nauplius b) Trocophore c) Megalopa d) Zoea
445. Gonopodium is the modification of a following part in the males of cyprinodonts
a) Dorsal fin b) Pelvic fin c) Pectoral fin d) Anal fin
446. Protandrous hermaphrodism is shown by
a) Carp b) Mullet c) Grouper d) Sea bass
447. Match list – I correctly with list – II and select your answer using the codes given below
List – I List – II
A) Grey mullet 1) Sardinella sirm
B) Bhetki 2) Euthynnus affinis
C) Little tuna 3) Mugil cephalus
D) Spotted sardine 4) Lates calcarifer
Codes:
A B C D
a) 4 3 1 2
b) 3 4 1 2
c) 3 4 2 1
d) 4 3 2 1
448. Polynemus paradiseus is commonly known
a) Indian salmon b) Mango fish c) Monk fish d) Pony fish
449. Bhetki is
a) Mullet b) Mussel c) Milk fish d) Asian seabass
450. Which one of the following is correctly matched?
a) Sport fish - Ctenophary godon idella
b) Food fish - Carassius auratus
c) Larvicidal fish - Gambusia affinis
d) Oramental fish - Salmo gairdnerii
451. Consider the following statements
i) Assertain (A): In Indian seas, a number of prized fisheries resources are declining
in quantity and size)
ii) Reason (R): Due to intensified fishing efforts in the inshore regions, fisheries
resources are declining)
Now select your answer according to the coding scheme given below
a) Both (A) and (R) are true (R) is the correct explanation of (A)
b) Both (A) and (R) are true but (R) is no the correct explanation of (A)
c) (A) is true but (R) is false
d) (A) is false and (R) is true

28. 28
452. The organism responsible for black gill disease in shrimp hatcheries is
a) Bacteria b) Fungi c) Protozoan d) parasites
453. Natural antioxidant used in the aquafeed is
a) BHA b) BHT c) Vit E d) Ethoxyquin
454. Head quarters of ICLARM is located at
a) Indonesia b) Malaysia c) Switzerland d) Rome
455. Probiotics mainly contain the following organism
a) Aspergillus b) Lactobacillus c) E. coli d) Nitrobactor
456. Bheries are present in which state
a) West Bengal b) Bihar c) Tripura d) Kerala
457. Which state has longest coastal line
a) TamilNadu b) Andrapradesh c) Gujarat d) Maharastra
458. Blackening of gills of shrimps due to
a) Lack of food b) Low dissolved oxygen concentration
c) Disease or decomposed mud d) High temperature
459. DNA polymerase is isolated from
a) Thermus aquaticus b) Pseudomonas c) Aeromonas d) All
460. Brine shrimp is known as
a) Acetus indicus b) Penaeus indicus c) Metapenaeus indicus d) Artemia salina
461. Methyl testosterone is used for
a) Faster growth b) Better colour in fishes c) Sex inversion d) Preventing deformities
462. Eel is a
a) Catadromous b) Anadromous c) Riverdromus d) None
463. Ichthyophthiriasis caused by
a) Bacteria b) Fungi c) Virus d) Protozoan
464. Central Inland Capture Fisheries Research Institute located at
a) Lucknow b) Barrackpore c) Bangalore d) Chennai
465. Floating weeds are controlled by
a) 2-4 D b) MS-222 c) Quinoline d) Copper sulphate
466. The National fish of India is
a) Indian Mackeral b) Indian oil sardine c) Seer fish d) None of these
467. The scientific name of Deep sea lobster is
a) Panulirus ornatus b) Panulirus homarus c) Puerulus sewelli d) None of these
468. Pond sealing may be accomplished by following method
a) Soil compaction b) Water proof lining c) Bentonite application d) All of these
469. For fish production on e of the following is harmful
a) Producer b) Parasite c) Consumer d) None

29. 29
470. Which fish is placed under chondrichthys group
a) Herring b) Eel c) Loaches d) Shark
471. Which of the following ecosystem is most productive from aqua cultural point of view
a) River b) Reservoir c) Canal d) Pond
472. Which of the following fish group is most abundant in swamps
a) Carps b) Catfish c) Mullet d) Clupeids
473. Which among the following is anadromous fish
a) Hilsa b) Catfish c) Magur d) Pangasius
474. Which river system is the original habitat of IMC
a) Indus b) Ganga c) Bhramaputra d) Narmada
475. Which is the head foot animal
a) Garden snail b) F.W. mussel c) Sea mussel d) Cuttle fish
476. Big eye tuna
a) T. alalunga b) T. albacares c) T. Obesus d) T. tonggol
477. Unio is
a) Edible oyster b) F.W. mussel c) F.W.snail d) Sea mussel
478. Mackerel is
a) Rastrelliger b) Tirichurus c) Both a & b d) None
479. Pomfret is
a) Pampus b) Rastrelliger c) Tirichurus d) None
480. Marine cat fish
a) Trachysurus b) Etroplus c) Thunnus d) Harpodon
481. Exotic game fish
a) Brown trout b) Snow trout c) Masheer d) Tilapia
482. Net for Bombay duck in Gujarat coast called
a) Gill b) Dol c) Trammel d) Trawl
483. Which aqua farming technique is most appropriate to utilize the autochthonous potentialities
of beels
a) Pen culture b) Duck cum fish culture
c) Cage culture d) Pig cum fish culture
484. Scale less fish
a) Scoliodon b) Singhi c) Catla d) Hilsa
485. Soil group most suitable for fish culture is
a) Sandy soil b) Clayey soil c) Loamy soil d) Silty clay soil
486. Oxygen depletion occurs mostly in pond having high density of
a) Bacteria b) Insects c) Gastropods d) Macrophytes
487. The pH of solution indicates
a) Acidity b) Alkalinity c) Both a & b d) Ionic strength

30. 30
488. Actual representative of true fish
a) Jelly fish b) Cuttle fish c) Star fish d) Dog fish
489. Demersal fish
a) Flat fish b) Duck c) Tuna d) Anchovy
490. Predatory fish
a) Catla b) Rohu c) Mrigal d) Seenghala
491. Groupers are
a) Protandrous b) Hermaphrodite c) Protogynous d) None
492. Largest sized murrel
a) Channa marulius b) C. Striatus c) C. Punctatus d) C. gachua
493. Presence of barbs is characteristic features of
a) Carps b) Cat fish c) Mullet d) All fish
494. Exclusively marine family
a) Cyprinidae b) Cobitidae c) Claridae d) Muraenidae
495. Fishes thrive best in aquarium having green hydrophyte because hydrophyte provides
a) Food b) O2 c) CO2 d) Organic debris
496. Body cavity of shrimp is called
a) Coelome b) Haemocoel c) Preudocoel d) Gastrovasuclar cavity
497. Natural anti-oxidant is
a) α-tocopherol b) BHA c) BHT d) Ethoxynin
498. Gills in chondrichthys are
a) Uncovered b) Covered c) absent d) None of the above
499. Which one is flying fish
a) Torpedo b) Scoliodon c) Anguilla d) Exocoetus
500. Fish that can be used in biological control of mosquito is
a) Carp b) Gambusia c) Singhi d) Eel
501. An aquatic animal which periodically casts of exoskeleton is
a) Eel b) Clam c) Loligo d) Tiger prawn
502. Glochidium larvae is found in
a) Pila b) Unio c) Sepia d) Loligo
503. Pearl is a secretion of
a) Mantle b) Mouth c) Kidney d) None
504. Transparent juvenile of eel assemble from the river known as
a) Elvers b) Spawn c) Fry d) Fingerling
505. GDP from fisheries of agricultural GDP is
a) 3.6% b) 4.6% c) 5.6% d) 6.6%
506. Hormone responsible for moulting of crustacea
a) Testosterone b) Estrogen c) Ecdysone d) Androgen

31. 31
507. Diatoms used in shrimp larval rearing
a) Chaetoceros b) Chlorella c) Daphnia d) Spirulina
508. Pigment found in aquatic animal
a) Chlorophyll b) Haemoglobin c) Astaxanthine d) None
509. Preferred feed for grass carp is
a) Fish meal b) Hydrilla c) Pelleted feed d) Mustard oil cake
510. Aquatic insect of freshwater nursery are controlled by application of
a) Soap oil emulsion b) Cow dung c) Ground nut oil cake d) Mustard oil cake
511. Laminaria is
a) Fish b) Sea weed c) Clams d) Mussel
512. Euchemia is a raw material for
a) Algin b) Carrangenan c) Agar d) None
513. Which farming technology is eco-friendly and scientific
a) Extensive b) Semi-intensive system c) Intensive system d) Super-Intensive
514. Which culture practice is adapted for culture of sea weed
a) Pen culture b) Pond culture c) Cage culture d) Floating raft
515. Which culture technology is suitable for culture of sea bass
a) Pen b) Cage c) Pond d) Floating raft
516. Most common mud crab species in India
a) Portunus pelagicus b) P. Sanguinolentus
c) Scylla trangubarica d) Uca annulipus
517. Which one is not an air breathing fish
a) Clarius batrachus b) Clupisoma garua c) A. testudiueus d) C. marulius
518. White spot disease in shrimp is caused by
a) Protozoa b) Virus c) Bacteria d) Fungus
519. Which monogenean trematodes causes gill disease in carps
a) Trichodina b) Dactylogyrus c) Costia d) Icthyobodo
520. Which parasitic group is responsible for the black spot disease in F.W fish
a) Cestodes b) Monogenetic trematodes
c) Digenetic trematodes d) Nematode
521. Disease in fishes caused by crustacean parasite is called
a) Liqulosis b) Dactylogyrasis c) Argulosis d) Gyroductylosis
522. Disease caused due to saprolegnia is called
a) Mycotic disease b) Protozoan disease c) Bacteria disease d) Metazoan
523. Which one is the primary producer in fish pond
a) Daphnia b) Moina c) Chlorella d) None
524. Which one is blue green algae (BGA)
a) Chlorella b) Navicula c) Microcystis d) Fragillaria

32. 32
525. Which one is floating aquatic weed
a) Water lilly b) Lotus c) Water hyacinth d) Hydrilla
526. Which is a member of zooplankton
a) Closterium b) Pediustrum c) Enderina d) Daphnia
527. Which one is used as fish poison in nursery pond
a) Mahua oil cake b) Ground nut oil cake c) Mustard oil cake d) Soyabean
528. Respiratory pigment found in fish is known as
a) Haemocyanin b) Haemoglobin c) Haemerythrin d) None
529. Which fish act as scavenger
a) Magur b) Catla c) Rohu d) Silver carp
530. Which one is pesticide
a) Malathion b) Boran mixture c) Sodium chloride d) Urea
531. Who is the father of DNA finger printing
a) Leuwen hock b) Aristotle c) Paul berg d) Alecc Jeffery
532. Study of abnormal embryonic growth is called
a) Teratology b) Carcinology c) Teleology d) Geronotology
533. Which of the following is known as energy currency of cell
a) DNA b) ATP c) RNA d) Vitamins
534. Which one is used for production of marine pearls
a) C. madrasensis b) Perna viridis c) Pinctada fucata d) None
535. Which is an indigenous major carp
a) Common carp b) Silver carp c) Grass carp d) Genetic carp
536. Which one form protein cover of virus
a) Envelop b) Capsid c) Virion d) Viroid
537. Bacteriophages area those which kill
a) Virus b) Bacteria c) Fungi d) Monera
538. Which one of the following is purine
a) Cytosine b) Guanine c) Thiamine d) Uracil
539. Functional protein is
a) Collagen b) Vitamin c) Enzyme d) Assein
540. RNA differ from DNA due to presence of
a) Uracil b) Thiamine c) Adenine d) Guanine
541. The continental shelf area of the country approximately
a) 0.5 million sq.km b) 0.7 million sq. km
c) 1.0 million sq. km d) 1.5 million sq. km
542. Among the coastal states marine fish catch is highest in
a) Andra Pradesh b) Goa c) Gujarat d) Karnataka

33. 33
543. Inland fish production highest in
a) Bihar b) Ardra Pradesh c) Orissa d) West Bengal
544. Which one is the sign of diseased fish
a) Bright colouration b) Eroded skin c) Absence of spot d) Normal swimming
545. DNA finger printing the sequence which matcher are
a) Minisatellite DNA b) Moderately repetition sequence
c) Microsatellite DNA d) Satellite DNA
546. For DNA finger printing DNA is obtained
a) White blood capsule b) Hear root cell c) Body seer d) All the above
547. Antibiotics are mostly prepared from
a) Fungi b) Actinomyces c) Cyanobacteria d) Both a& b
548. Genetic engineering is related to
a) Mitotic division of cell b) Deletion and repair of mechanisms
c) Nucleotide transfer d) None
549. Hormone are produced by
a) All steroid b) All protein c) Some steroids and some protein d) None
550. The protein of the sea adjoining the coast line and the falling with in depth line is called
a) Coastal water b) Off shore water c) Oceanic water d) None
551. The sea fishes during close to sea bed are called
a) Pelagic b) Demersal c) Columnar d) None
552. Pearl spot is the common name
a) Anabas testudineus b) Uca annulipus c) Etroplus suratensis d) None
553. Probiotics are commonly used in shrimp farming for
a) Water quality management b) Increasing oxygen level
c) Control disease d) None
554. Which causes luminescent disease
a) Virus b) Bacteria c) Protozoa d) Fungi
555. Which one is agar yielding sea weeds
a) Sargassum b) Ulva c) Enteromorpha d) Gracillaria
556. Which one is green seaweed
a) Ulva b) Sargassum c) Laminaria d) Undaria
557. The omega -3 fatty acid is
a) Palmitic acid b) Stearic acid c) Linolenic acid d) Oleic acid
558. Which algae causes toxicosis and disturbance on oxygen balance
a) Microcystis b) Chlorella c) Chlamydomonus d) Nitzhia
559. Which one is termed live fish
a) H. fossilis b) C. catla c) L. rohita d) C. mrigal
560. Which of the following is called a Banana shrimp
a) P. semisulcatus b) P. merguiensis c) P. indicus d) None

34. 34
561. Which is called as mango fish
a) Polynemous paradiscus b) P. indicus c) P. sexataris d) P. heptadactylus
562. Common carp eggs are
a) Demersal b) Pelagic c) Adhesive d) None
563. Most of carp spawn produced in India
a) Circular hatchery b) Conventional c) Jar hatchery d) Earthen pit
564. pH for carp culture
a) 8-8.6 b) 4-5 c) 5-7 d) 7-11
565. Rostrum triangular shape in which shrimp
a) P. merguensis b) P. monodon c) P. indicus d) M. affinis
566. Best feed for milk fish
a) Lab lab b) Zooplankton c) Detritus d) Phytoplankton
567. Optimum stocking density of carp spawn
a) 5-10 million b) 10-20 million c) 0.5 – 1 million d) 200-30 million
568. Exotic fish in India
a) Catla b) Rohu c) Puntius sp d) Mugil cephalus
569. Indian river shad
a) H. ilisha b) Kovala koval c) Channa marulius d) None
570. Pokkali field in India
a) Andra Pradesh b) Karnataka c) Kerala d) Maharastra
571. Bio fertilizer used in aquaculture in India
a) Azolla b) Lemna c) a & b d) None
572. Hill stream fishes
a) Rohu b) Trout c) Catla d) Mrigal
573. Fecundity of P. monodon
a) 1 lakh b) 2 lakh c) 4 lakh d) 5 lakh
574. South American catfish
a) C. punctatus b) C. batrachus c) a & b d) None
575. In controlled condition carp eggs hatch out within
a) 15 hours b) 9 hours c) 48 hours d) 58 hours
576. Colour of fertilized egg in catla
a) Yellow b) Deep orange c) Light green d) Whitish
577. Silver carp basically
a) Surface feeder b) Column c) Bottom d) None
578. Favourable feed for Ctenopharyngodon idella
a) Phyto plankton b) Zooplankton c) Aquatic weed d) None
579. Best live feed for giant prawn
a) Chetoceros b) Artemia naupli c) Brachionus d) None

35. 35
580. Integrated fish farming is widely practiced in
a) India b) Japan c) China d) None
581. P. japanicus family
a) Penaeid b) Pandolidae c) a & b d) None
582. Scientific name of Banana shrimp
a) P. merguiensis b) Metapenaeus affinis c) a & b d) None
583. Stocking density of M. rosenbergii in grow out
a) 40000-50000 PL/ha b) 30000-40000 PL/ha
c) 25000-30000 PL/ha d) 50000-60000 PL/ha
584. Main live food used in shrimp zoea
a) Moina b) Chaetoceros c) Artemia d) None
585. Number of maturity stages in shrimp
a) 4 b) 6 c) 8 d) 3
586. Commonly used inorganic fertilizer used in carp pond
a) Super phosphate b) Ammonia c) a & b d) None
587. Fringed lips is present in
a) Rohu b) Catla c) a & b d) None
588. Fingerling stocking density in composite fish culture
a) 5000-10000 b) 10000-20000 c) a & b d) None
589. Indian river prawn
a) M. rosenbergii b) M. malcomsoni c) a & b d) None
590. Seer fish is also known as
a) King fish b) King of fish c) Salai d) None
591. Pen culture is practiced in
a) Pulicat lake b) Chilka lake c) Koleru lake d) Vembanad
592. Fertilized egg size of common carp
a) 0.9mm b) 1.6 mm c) 2.5 mm d) 3.5mm
593. Fresh water mussel for pearl production
a) Lamellidens marginalis b) Pinctada fucata c) a & b d) None
594. Bheries are present in
a) W. Bengal b) Bihar c) Tripura d) Kerala
595. Toxic algae present in pond
a) Microcystis b) Macrocystis c) a & b d) None
596. Mahua oilcake cake quantity used in pond preparation
a) 2500kg b) 200kg c) 20kg d) 4000kg
597. Scientific name of milk Fish
a) Chanos chanos b) Elops machnata c) Saurida tumbil d) None

36. 36
598. Anchor worm
a) Lernea b) Argulus c) a & b d) None
599. Pomfrets are always graded as
a) Pounds b) U/10 c) 10-20 d) 20-30
600. Saponin is always extracted from
a) Sea horse b) Sea urchin c) Holothuria d) None
601. Most suitable shrimp sp in India to culture
a) P. monodon b) P. indicus c) a & b d) None
602. If cephalothorax portion is removed from the shrimp the following may be yield
a) 40% b) 45% c) 60% d) 80%
603. For development of fishery in small reservoir which most suitable technique
a) Culture based fishery b) Capture fishery c) a & b d) None
604. Which types of cell division takes place in gonads
a) Mitosis b) Amitosis c) Meiosis d) Both a and b
605. Fish spp. likely to be in danger of extinction in the near future are
a) Endangered b) Rare c) Vulnerable d) None
606. For control of EUS which one is used
a) CIFACA b) CIFAMA c) CIFAX (0.1 ppm) d) CIFAPRA
607. A compound produced by an organism that inhibits the growth of another microorganism is
called
a) Antiseptic b) Antibiotic c) Anticoagulant d) Antibodies
608. The excreting organ is called
a) Malpighian tubule b) Nephridia c) Green glands d) Kidney
609. Which one is mainly responsible for growth in fishes
a) Starch b) Vitamins c) Amino acid d) Fatty acid
610. Ideal depth for a brackish water fish pond
a) 1.5m b) 1m c) 3m d) 4m
611. Profitability of a shrimp farm depends on
a) Capital b) Seed c) Feed d) All
612. Cryoprotectant used in fishes
a) Methanol b) Glucose c) Propandiol d) Glycerol
613. Human tape worm
a) Bothriocephalus b) Diphyllobothrium c) a&b d) None
614. The ornamental fish which is banned in India is
a) Discus b) Oscar c) Piranah d) Peacock cichlid
615. Breeding traps are generally used for
a) Goldfish b) Danio c) Livebearers d) Anabantids

37. 37
616. The tank should be darkened for the breeding at
a) Rosy barb b) Zebra danio c) Neon tetra d) Tiger barb
617. Dorsal fin is absent in the case of
a) Lion head gold b) Celestial gold c) Moord Common gold
618. The fish which feeds on their own young ones
a) Discus b) Fighter c) Swordtail d) Tetras
619. The sex ratio for goldfish breeding
a) 1:2 b) 2:1 c) 1:1 d) 2:2
620. Velvet disease is caused by
a) Protozoan b) Bacteria c) Leeches d) Fungi
621. Which of the following gives the feeling of the presence of and grains
a) Loamy soil b) Sandy soil c) Silty soil d) Clayey soil
622. If the diameter of soil particles is less than 0.002mm, the soil will be
a) Silty b) Clayey c) Sandy d) Gravelly
623. While studying the textural group of a soil sample, the relative proportion of different-sized
particles was found to be 50% sand and 50% clay or silt or both; the soil will be
a) Loamy b) Silty c) Sandy d) Loamy-Sandy
624. The soil phosphorus level (P2O5) less than 30ppm is indicative of
a) Poor production b) Average production c) High production d) No production
625. India Major Carps thrive well at temperatures between
a) 20-37o
C b) 35-40o
C c) below 20o
C d) above 40o
C
626. Application of Gypsum in a pond corrects the
a) pH b) Alkalinity c) Hardness d) Turbidity
627. ‘Secchi disc’ is used to measure
a) Transparency b) H2 -ion-concentration c) Alkalinity d) Hardness
628. The most common method of correcting the low pH, is
a) Addition of Gypsum b) Liming c) Addition of oil cake d) Organic Manure
629. Which hardness value will be considered suitable for growth of fish
a) 15ppm or above b) Less than 10pp c) Less than 5ppm d) 10ppm to 12ppm
630. The animals which are relatively large and powerful, and can combat water currents, are called
a) Neuston b) Nektons c) Planktons d) Swimmers
631. The terms ‘Epifauna’ and ‘Infauna’ are related with:
a) Neustons b) Nektons c) Benthos d) Profundal fauna
632. ‘Episammic’ form is that which grows on:
a) Surface of water b) Plants c) Rocks d) Sand
633. Which is called as ‘Water milfoil’:
a) Hydrilla b) Salvinia c) Myriophyllum d) Jussiaea

38. 38
634. ‘Cattail’ is the common name for:
a) Typha b) Vallisaneria c) Pistia d) None
635. Which one of the following is a Marginal Emergent Weed:
a) Vallisneria b) Typha c) Eichhornia d) Hydrilla
636. Which one of the following is a ‘Desmid’:
a) Cosmarium b) Navicula c) Coelastrum d) Pediastrum
637. Diatoms belong to
a) Xanthophyceae b) Myxophyceae c) Bacillariophyceae d) Dinophyceae
638. Microcystis is a
a) Green Algae b) Blue-Green Algae c) Brown Algae d) Dinoflagellate
639. Which one of the following is Dinoflagellate
a) Chlamydomonas b) Peridinium c) Volvox d) Eudorina
640. ‘Sun Animalcule’ is the common name for a
a) Protozoan b) Molluscan c) Coelenterate d) Crustacean
641. ‘Wheel – Animalcules’ belong to:
a) Insect b) Rotifera c) Porifera d) Trematods
642. Which one of the following is of ‘Bugs’
a) Aelosoma b) Moina c) Brachionous d) Piscidium
643. ‘One – Eyed giant’ is the name for:
a) Daphnia b) Cyclops c) Euglena d) None
644. ‘Dragon Flies’ belong to:
a) Zygoptera b) Anisoptera c) Diptera d) Plecoptera
645. Which set of the following is to ‘Bugs’:
a) Gernis, Notonecta, Ranatra, Lacctrephes
b) Gernis, Notonecta, Cyclops, Cybster
c) Ranatra, Corixa, Cybister, Hydaticus
d) Notonecta, Hydrometra, Daphnia, Cybister
646. ‘Beetles’ belong to order:
a) Orthroptera b) Hemiptera c) Coleoptera d) Diptera
647. Which one of the following is called ‘Water Boatman’
a) Coxia b) Nepa c) Notonecta d) Gerris
648. To hold the water at a definite level in a pond and also to serve as a causeway, it is essential to
construct a:
a) Spilway b) Monk c) Sluice d) Dike
649. ‘Freeboard’ is the term used with reference to the construction of
a) Dike b) Spilway c) Screen d) Sluice
650. The conjugated proteins which determine heredity is
a) Pyrimidine b) Purine c) Both a & b d) None

39. 39
651. Adenine is an example of
a) Pyrimidine b) Purine c) Both a & b d) None of these
652. Commonly DNA contains _________ different types of nucleotides
a) 1 b) 3 c) 4 d) 5
653. Between A and T in the double stranded DNA there are ---- hydrogen bonds
a) 4 b) 2 c) 3 d) None
654. In the DNA double helix it takes _________ for one complete turn
a) 44Ao
b) 35Ao
c) 34Ao
d) 36Ao
655. The same word “parthenogenesis” in fish seed production is
a) Induced breeding b) Stripping method c) Gynogenesis d) Cytogenesis
656. Cryo preservation fish egg can not be done because of
a) Large size b) High water content c) High fat d) Yolk
657. A substance that causes a specific immune response in an animal
a) Bacteriocin b) Probiotics c) Vaccine d) Antigen
658. A gene whose over activity causes cells to become cancerous as
a) Super gene b) Oncogene c) Autogene d) Progene
659. The fish which is mutual to see anemone
a) Pentamer b) Tetramer c) Trimer d) Dimer
660. Antibody molecules in fish are
a) Pentamer b) Tetramer c) Trimer d) Dimer
661. Primers are
a) Douoble stranded RNA molecules b) Single stranded RNA molecules
c) Single stranded short oligobucleotides d) Double stranded short oligonucletides
662. Defence mechanisms in shrimp does not include
a) Encapsulation b) Prop PO system c) Complement fixation d) Phagocytosis
663. Parasite responsible for fungal infection is
a) WSSV b) Ichtyophonus hoeferi c) Ichthyophthirius multifilis d) Myxosoma sp
664. Recommended treatment for fungal infection is
a) Tetracycline b) Ozone c) chlorine d) Formalin
665. Epizootic ulcerative syndrome in fish is spread due to
a) Saprolegnia b) Aphanomyces c) Achyla d) Branchyomyces
666. Enzyme of retroviruses, which is essential for their replication
a) RNA dependent RNA polymerase b) Reverse transcriptases
c) DNA gyrase d) Taq DNA polymerase
667. Aggregates of macrophages in haematopoietic tissues of fish having pigment granules
a) T helper cells b) Plasma cell centers
c) Melanomacrophage centers d) Phagocytic macrophages
668. Attachment of --------- on a particle / antigen can activate the phagocytic activity in fish
a) Antibody b) Adjuvant c) Complement d) Interferon

40. 40
669. Substances administered along with antigens to increase the antibody production
a) Vaccines b) Adjuvants c) Trans ferrin d) Antibiotics
670. Organism causing bacterial haemorrhagic septicaemia
a) Lernea b) Costia c) Pseudomonas d) Mycobacterium
671. Viruses at present are grown in the laboratory by
a) Egg inoculation b) Agar plates c) cell culture d) Broth culture
672. Pathological changes of the gills include
a) Hyperplasia b) Ulcer c) Lithiasis d) None
673. Primary lymphoid organ in fish
a) Intestine b) Bone marrow c) Thymus d) Pancreas
674. Which is capable of phagocytosis
a) Neutrophil b) Thrombocyte c) Plasma cell d) Erythrocyte
675. Pseudo-tuberculosis is caused by
a) Pasteurella b) Aeromonas c) Vibrio d) Nocardia
676. One of the notifiable disease as per OIE
a) Viral haemorrhagic septicaemia b) Vibriosis
c) Whirling disease d) Black gill disease
677. PUFA which reduce cholesterol & coronary disease
a) Docasapentaenoic acid b) Eicospentanoic acid
c) Glycerol d) None
678. Range of salinity for fresh water aquaculture
a) <0.5‰ b) 0.5-1‰ c) 1-15‰ d) None
679. Range of salinity for brackish water aquaculture
a) 0.5-20% ‰ b) 0.5-10‰ c) 0.5 – 30 ‰ d) 1-30 ‰
680. Range of salinity for Mariculture
a) 30 - 35 ‰ b) 20-25‰ c) 35-40‰ d) 30-40‰
681. Range of salinity for Metahaline
a) >25‰ b) >20‰ c) >35 ‰ d) 30‰
682. Species cultured mostly in pen are
a) Chanos chanos b) Lates calcarifer c) Mugil cephalus d) All
683. Pole culture is mainly for
a) Mussel b) Lobster c) Crab d) None
684. Salinity of super saline salt pan
a)100 ‰ b) 150 ‰ c)100-150 ‰ d) >200 ‰
685. Species mainly culture in supersaline area
a) Artemia salina (brine shrimp) b) Daphnia c) Spirulina d) None
686. Faster growing species among IMC is
a) Rohu b) Catla c) Silver carp d) Mrigal

41. 41
687. Maximum size of catla is
a) 2.0 m b) 1.4 m c) 1.5 m d) 1.8m (45 kg)
688. Tastiest species among IMC is
a) Catla b) Grass carp c) Mrigal d) Rohu
689. Maximum size of Rohu is
a) 1 m b) 2m c) 1.5 m d) 2.5 m
690. Maximum size of Mrigal is
a) 0.5m b) 0.6m c) 0.8 m d) 0.9m
691. Silver carp fed on phytoplankton of size
a) >0.025 mm b) <0.25 mm c) <0.025 mm d) <0.25 mm
692. Maximum size of silver carp
a) 60 cm b) 100 cm c) 60 cm d) 50 cm
693. Artificial breeding of silver carp success in
a) 1961 b) 1952 c) 1960 d) 1962
694. Maximum size of Grass carp
a) 2.0 m b) 1.5 m (30 kg) c) 2.5 m d) 1.0 m
695. Common carp, silver carp, grass carp are Collectively called as
a) Sanitary fish b) Larvicidal fish c) Tastiest fish d) None
696. Maximum size of Black rohu
a) 1.5 m b) 2.0 m c) 2.5 m d) 1 m
697. Maximum size of cauvery carp (L) fimbriatus) fringe lipped carp
a) 1 m b) 90 cm c) 50 cm d) 2 m
698. Cauvery carp is distributed mainly in
a) South Indian river b) North Indian water
c) South East Indian river d) None
699. Maximum size of white carp (cirrhinus cirrhosa)
a) 90cm b) 50 cm c) 45 cm d) 60 cm
700. Sarana is mainly found in
a) South Indian river b) East Indian river c) a & b d) None
701. Largest catfish is
a) Wallago attu (2m – max) b) Clarius c) a & b d) None
702. It is a genetic process by which message from the DNA which remains in coded form is
transfers to mRNA is called
a) Transcription b) Translation c) a & b d) None
703. Purines are
a) Guanine & Cytosine b) Cytosine & Thinamine
c) Adenine & Thiamine d) Adenine & Guanine

42. 42
704. Pyrimidine are
a) Adenine & Thiamine b) Cytosine & Thiamine
c) Adenine & Guanine d) None
705. Nucleoside refers
a) Sugar + Phosphate b) Base + Phosphate
c) Base + Sugar d) Base + Sugar + Phosphate
706. The bond between bases & sugars
a) Glycosylic b) Glycosidic bond c) Hydrogen bond d) a & b
707. If the sugar is deoxyribose then the compounds are called
a) Ribonucleotides b) Deoxyribopeptide
c) Deoxyribonucleotides d) None
708. Nucleotide
a) Sugar + Phosphate b) Base + Sugar + Phosphate
c) Base + Sugar d) Base + Phosphate
709. The repeating monomers of DNA or RNA are represented by a single letters
a) A b) T c) G d) All
710. In the double Helix structure Purine & Pyrimidine pair is such that
a) Guanine pairs with cytosine b) Adenine pairs with thymine
c) a & b d) Guanine Pairs with adenine
711. The different forms of nucleic acid double helix structures are
a) A helix b) B helix c) Z helix d) All
712. SINES refers
a) Short Interspersed Nucleic Elements b) Short inter nucleic elements
c) Shelf interspersed nucleic acid d) None
713. LINES refers
a) Left interspersed Nucleic elements b) Long Interspersed Nucleic Elements
c) Line inter space elements d) None
714. It consists of sequence from a few hundred base pairs is
a) SINES b) LINES c) SNP d) RFLP
715. It consists of sequence between 1 & 5 thousand base pairs is
a) SINES b) CODON c) SNP d) LINES
716. SNP
a) Simple Nucleo phosphate b) Short nucleotide polymorphism
c) Single nucleotide polymorphism d) None
717. RFLP
a) Replication of Fragment Length Polymorphism
b) Restriction Fragment Length Polymorphism
c) Restricted Fragment line Polymorphism
d) None
718. Any piece of DNA which replicates a single unit is called
a) Seine b) Lines c) Codon d) Replican

43. 43
719. The initiation of a DNA replication within a replican always occurs at a fixed point known as
a) Origin b) Base c) Apex d) None
720. DNA is only of
a) Two type b) One type c) 3 type d) None
721. RNA types include
a) mRNA b) tRNA c) rRNA d) All
722. RNA does not
a) Transcribe b) Replicate c) a & b d) None
723. DNA consists of a large number nucleotides up to
a) 2.5 million b) 3 million c) 40 million d) 4.3 million
724. RNA concentration of fish nucleotides up to
a) 10,000 b) 15,000 c) 12,800 d) 13,000
725. A unit of recombination gene
a) Recon b) Replican c) Cistron d) All
726. Gene as a unit of mutation is called
a) Replican b) Cistron c) Muton d) a& b
727. Gene as a unit of function is called
a) Replican b) Cistron c) Muton d) a& b
728. The operon model to explain the control of gene activity
a) Jacob & Monald (1961) b) M.F. Maury c) Edward Forbes d) None
729. The relationship between the sequence of bases in DNA / RNA and the sequence of amino
acids in a polypeptide chain is called a
a) Codon b) Transcription c) Genetic code d) None
730. The average annual per capita fish consumption is
a) 15 kg b) 10 kg c) 2 kg d) 5 kg
731. Example for Predatory – prey culture is
a) Murrel – tilapia b) Murrel – catfish c) Catla – Murrel d) None
732. Silver carp introduced in India during
a) 1939 b) 1959 c) 1961 d) 1957
733. Chinese carp was introduced in India in
a) 1958 b) 1948 c) 1939 d) 1937
734. Labeo calbasu is commonly known as
a) Sanitary fish b) White rohu c) Black rohu d) None
735. L. fimbriatus (fringe-lipped carp) is commonly known as
a) Cauvery carp b) Big mouth carp c) White carp d) None
736. Example for fresh water shark is
a) Cirrhinus cirrhosa b) Heteropneustes fossilis
c) Wallago attu d) None

44. 44
737. A platform – like space between bund and watery area known as
a) Berm b) Bench line c) Dike d) & b
738. A mixture of silt, sand and clay in the ratio of
a) 1:3:2 b) 1:2:3 c) 1:2:1 d) 1:3:1
739. Temporary algal bloom forming in the pond waters include
a) Euglena b) Chlamydomonas c) Volvox d) All
740. Example for filamentous algae
a) Spirogyra b) Nitella c) a & b d) None
741. Leaves float above the surface and the roots underneath
a) Floating weeds b) Emerged weeds c) Submerged weeds d) None
742. Example for Emerged weeds
a) Nymphaea b) Nymphoides c) Myriophyllum d) All
743. Example for floating weeds
a) Eichhornia b) Lemna c) Pistia d) All
744. Roots are attached to the bottom and leaves freed float on the surface
a) Floating weeds b) Emerged weeds
c) Submerged weeds d) Marginal weed
745. Example for rooted submerged weeds
a) Vallisneria b) Hydrilla c) Najas d) All
746. Example for rootless submerged weeds
a) Utticularia b) Ceratophyllum c) a & b d) None
747. Example for marginal weeds
a) Marsilia b) Jussiaea c) a & b d) None
748. The common weed fish species are
a) Puntius ticto b) P. sarana c) Rasbora danicoius d) All
749. Derris root powder contain
a) Rotenone b) Saponin c) a & c d) None
750. Derris root powder causes damage to
a) Circulatory system b) Respiratory system c) Digestion system d) All
751. Effective dosage of derris root powder is
a) 5-10 ppm b) 10-15 ppm c) 8-12 ppm d) None
752. Saponin causes
a) Haemolysis of white blood corpuscles b) Haemolysis of red blood corpuscles
c) Respiratory system d) None
753. Amount cobalt chloride per kg feed may enhance the growth rate and survival (> 90%) of fish)
a) 1 mg b) 1g c) 2 mg d) 5g
754. The standard combination of NPK as is generally recommended is
a) 18 : 10 : 4 b) 10:8:4 c) 9:6:2 d) None

45. 45
755. The Brazilians were the first to use hypophysation successfully in pond fish culture as early as
a) 1936 b) 1934 c) 1942 d) 1957
756. India was the third country to apply hypophysation technique successfully in IMC and
Chinese carps during ------ and ------- respectively
a) 1942, 1957 b) 1957, 1934 c) 1957, 1962 d) None
757. Detecting the state of gonadal maturation in female breeders by
a) Catheterization b) Hypophysation c) Immobilization d) All
758. The average fecundity of IMC at about
a) 2 lakh eggs / kg b) 5lakh egg/kg
c) 10 lakh eggs/kg d) None
759. Mirror carp is introduced into Nilgris during
a) 1939 b) 1941 c) 1938 d) None
760. Which one is Doctor fish
a) Tench (Tinca tinca) b) Trout c) Garra d) All the above
761. Indian trout is
a) Barilius bola b) Schizothorax c) Plychobarbus d) None
762. In the aquarium ammonia concentration is beyond --------- is toxic to fish
a) 1.5 mg/l b) 0.2mg/l c) 0.5 mg/l d) 1.0mg/l
763. Aquarium fish may excrete ammonia in the range of
a) 0.3 – 4.0 g/kg fish / day b) 0.2-4.0g/kg fish /day
c) 1.0-5.0g/kg fish/day d) None
764. Tilapia (Oreochromis mossamibicus) introduced in India from East coast of Africa is
a) 1958 b) 1952 c) 1937 d) 1942
765. Fin and tail rot produced by
a) Nematodes b) Fungi c) Bacteria d) All
766. Sign of Dropsy is
a) Open sores or ulcers on the body
b) Accumulation of fluid inside the body cavity
c) Scale protrusion; exophathalmic condition
d) b & c
767. reatment for Dropsy disease is
a) Dip treatment in 5 ppm Kmno4 solution for 2 min
b) Chloromycetin bath for 1 hour
c) 1 min dip treatment in 50 ppm Kmno4 solution
d) All
768. Costiasis is caused by
a) Bacteria b) Fungi c) Protozoans d) Nematodes
769. The most important game and food fish transplanted in India in
a) Trout b) Mirror carp c) Tench d) All the above
770. Suitable pH for the spawning of major carp is
a) 7.5 – 8.3 b) 6.5 – 7.5 c) 8.5 – 9.5 d) None

46. 46
771. Sequencing of triple bare in mRNA which specify amino acid is called
a) Muton b) Cistron c) Codon d) LINE
772. The total genetic contribution of organism is called
a) Genome b) Codon c) a & b d) None
773. The effect of a single gene upon two or more characters which are not related is called
a) Mutation b) Pleiotropism c) Sex reversal d) None
774. Process of hormone injection for the induce breeding of fish is called
a) Hypophysation b) Catheterization c) Irradiation d) All
775. Successful long term storage of spermatozoa has been achieved by
a) Mounib et al (1968) for cod (Gadus morhua) b) Johannes Schmidt
c) Jacob d) Peter
776. First genetic studies on colour pattern of Poecillia reticulata were performed by
a) Mounib b) W.S. sutton c) Johannes Schmidt d) Jacob
777. Hypothesis of chromosome as physical basis of heredity was proposed by
a) W.S.Sutton (1902) b) Johannes c) Jacob d) None
778. Sex-linked inheritance in fish was first described by
a) Jacob b) Johannes c) Johannes schmidt d) None
779. Origin of Penculture is
a) China b) Brazil c) India d) Indonesia
780. Protein requirement of M. rosenbergii larvae is
a) 40-45% b) 45-50% c) 50-55% d) 30-40%
781. Dropsy is caused by
a) Aeromonas hydrophilla b) Pseudomonas punctata
c) Saprolegnia d) a & b
782. Origin of cage culture is
a) China b) America c) Cambodia d) None
783. Eggs of IMC is
a) Demersal b) Pelagic c) Transparent d) a & b
784. Brackish water aquaculture originated in
a) a & b b) Russia c) Indonesia d) China
785. Species extensively cultured in cage of Japan is
a) Yellow tailb) Catla c) Murrel d) Mullet
786. Hormones were used in breeding of fish for the first time by
a) American b) Indian c) a & b d) Russian
787. Egg membrane is also called
a) Oolema b) Aliquot c) a & b d) None
788. Protection of all female by mating maternal chromosomes
a) Parthanogenesis b) Gynogenisis c) Androgenesis d) None

47. 47
789. Protection of all male by mating maternal chromosomes
a) Gynogenis b) Parthanogenesis c) Androgenesis d) None
790. Cryopreservation is done only
a) Sperm b) Egg c) a & b d) None
791. Sperm + Extender solution is called
a) Immunostimulant b) Aliquot c) Probiotic d) None
792. Function of Cryoprotectant
a) Minimizing freezing of fluid
b) Check the formation of lethal concentration of electrolyte
c) a & b
d) None
793. Ratio of milt and extender solution in marine fish is
a) 1:4 b) 1:3 c) 2: 1 d) 1:2
794. Ratio of milt and extender solution in fresh water fish is
a) 1: 4 b) 1:3 c) 2:1 d) 4:1
795. Dissolution of genetic material is called
a) Mutation b) Pleiotrophism c) Pyknosis d) None
796. Largest area for shrimp farming in India is
a) Tamil Nadu b) West Bengal c) Kerala d) cochin
797. Soil practice are called
a) Regoliths b) Corixa c) Monk d) None
798. Best material for dyke construction is
a) Sandy clay b) Loamy soil c) Sandy soil d) None
799. Carp dies at pH
a)< 4 b) >11 c) a & b d) 7.5
800. Soil having equal proportion of sand silt and clay is called
a) Sandy soil b) Loamy soil c) clay soil d) None
801. The use of hormone injection (induced breeding) start first time in
a) Brazil (1932) b) Russia c) China d) Cambodia
802. Cell culture medium used in fish cell culture are
a) L-15 b) RPM11640 c)M199, MEM d)All
803. Cloning vectors which are used in recombinant DNA technology are
a) Plasmids, bacteriophages b) Cosmids c) Viruses d)All
804. Malathion dosage for Argulosis disease in fish
a) 0.25 ppm b) 2ppm c) 1ppm d) None
805. In culture shrimps, feeding rate is adjusted based on
a) Estimated survival b) Feed consumption c) Individual body weight d) All

48. 48
Match the following
806. a) C. carpio var specularis - Leather carp (Large shiny & scattered scales) (c)
b) C. carpio var nudus - Pig mouth carp (d)
c) C. carpio var communis - Mirror carp (a)
d) L. konitus - White carp (e)
e) Cirrhinus cirrhosa - Scale carp leathery appearance due to absence of scale (b)
807. a) Murrels - Giant snake head (b)
b) Channa marulius - Striped snake head or common murrel (c)
c) C. striatus - Brown trout (d)
d) Salmo trutta fario - Rainbow trout (e)
e) Salmo gairdneri gairdneri - Snake heads (a)
808. a) Mahseer - Etroplus suratensis (b)
b) Pearl spot - Chanos chanos (c)
c) Milk fish - T. putitora (a)
d) Giant murrel - Red finned mahseer (e)
e) Tor tor - Channa marulius (d)
809. a) Protozoan disease - Haemorrhagic septicemia (b)
b) Bacterial disease - Saprolegniasis (c)
c) Mycotic disease - Branchiomycosis (d)
d) Gill rot disease - Yellow finned mahseer (e)
e) I. putitora - Trichodinosis (a)
810. a) Horse mackerel - Mid water trawl (c)
b) Tuna - Purse seine (a)
c) Seer fish - Bottom trawl (d)
d) Shrimp - Chocolate mahseer (e)
e) Acrossocheilus hexagonolepis - Pole and line (b)
811. a) Frog - C. batrachus (c)
b) Snow trout - Rana tigrina (a)
c) Air breathing fish - H. Scabra (d)
d) Sea cucumber - C. mrigal (e)
e) Carp - Schizothorox sp (b)
812. a) Chaetoceres - Nori (d)
b) Spirulina - Algae rich in vitamins (c)
c) Dunaliella - Bacillariophyta (a)
d) Porphyra - Chlorophyta (e)
e) Chlamydomonas - Algae rich in Protein (b)
813. a) Hammer-head shark - Negapriom acutidens (b)
b) Indian lemon shark - Charcharhinus hemiodon (d)
c) Tiger shark - Charcharhinius melomopterus (e)
d) Long-nosed shark - Spyrna diplana (a)
e) Black-fin reef shark - Galeocerdo cuvieri (c)
814. a) White bait - Stolephorus indicus (c)
b) Gizzard shad - Sprateloides deticatulus (a)
c) Indian anchovy - Strongylura strongylura (d)
d) Round –tail needle fish - Variola louti (e)
e) Moontail sea bass - Amodontostoma chacunda (b)

49. 49
815. a) Indian thread fin - Coryphaena hippurus (d)
b) Yellow tail scad - Mene maculata (e)
c) Indian scad - Atule mate (b)
d) Dolphin fish - Decapterus russelli (c)
e) Moonfish - Alectis indicus (a)
816. a) Red tide - Gracillaria (b)
b) Red seaweed - Dinoflagellate (a)
c) Brown seaweed - Vorticella (e)
d) Parasitic fungus - Saprolegnia (d)
e) Parasitic protozoa - Sargassum (c)
817. a) Flower tail prawn - P. indicus (c)
b) Banana prawn - M. dobsoni (a)
c) White prawn - P. monodon (d)
d) Tiger prawn - P. Semisulcatus (e)
e) Green tiger prawn - P. merguensis (b)
818. a) Blue mussel - M. metacutti (c)
b) Edible oyster - M. edulis (a)
c) Brown mussel - Anadora granosa (d)
d) Blood clam - Perna viridis (e)
e) Green mussel - Crassosterra madrasensis (b)
819. a) Catla catla - Mahseer (c)
b) L. rohita - Catla (a)
c) T. putitora - Common carp (d)
d) Cyprinus carpio - Rohu (b)
820. a) Thread fins - Harpodon neherius (e)
b) Sea – eel - Polynemus indicus (a)
c) Silver bellies - Lactarius lactarius (d)
d) White fish - Muraena punctata (b)
e) Bombay duck - Leiognathus equatus (c)
821. a) Giant murrel - Anabas testudineus (c)
b) Milk fish - Channa marulius (a)
c) Climbing perch - Mugil cephalus (d)
d) Grey mullet - Etroplus suratensis (e)
e) Pearl spot - Chanos chanos (b)
822. a) PAHS - Carbon with 6 double bond (e)
b) Lipids - Biological value (c)
c) BV - Carbon with 5 double bond (d)
d) EPA - Poly aromatic hydrocarbons (a)
e) DHA - Triglycerides (b)
823. a) Megalopa - Artemia (d)
b) Mysis - Crab (a)
c) Spawn - Shrimp (b)
d) Cyst - Trout (e)
e) Eyed ova - Carp (c)

50. 50
824. a) White shrimp - P. mondon (e)
b) Mullet - P. japanicus (d)
c) Sea bass - Lates calcarifer (c)
d) Flower - P. indicus (a)
e) Tiger - Mugil cephalus (b)
825. a) FAD - Fish yield (d)
b) FCR - General yield (c)
c) GSI - Aggregations of fish (a)
d) MSY - Life stages (e)
e) PL - Feed (b)
826. a) Deep sea spiny lobster - Panulirus longipes (c)
b) Pointed spiny lobster - Thenus orientalis (d)
c) Long – legged spiny lobster - Puerulus sewelli (a)
d) Sand lobster - Panulirus homarus (b)
e) Aquaculture authority of India - Chennai (e)
827. a) Fish farmers day - Disinfectant (d)
b) World fisheries day - July 10 (a)
c) Ipomea - November 21 (b)
d) Hydrogen peroxide - Gypsum (e)
e) Calcium sulphate - Morning glory/Marginal weed (c)
828. a) Shell fish parasite is - Malaysia, phillipines (d)
b) Live feed for prawns - Lernaea (a)
c) Fishes with chin barbels - Artemia (b)
d) ICLARM head quarters - Bangkok, Thailand (e)
e) Head quarters of NACA - Cat fish (c)
829. a) Eel larvae - Digenian trematode (e)
b) Luminous bacterial disease - Mother of offspring (d)
c) Cotton shrimp disease - Vibiro harveyi (b)
d) Vertical transmission of disease - Leptocephalus (a)
e) Black spot disease in fish - Microsporean (c)
830. a) Immunoglobulin in fish - Virus (e)
b) Aflatoxin - IgM (a)
c) Furunclosis - Aspergillus (b)
d) TCBS agar - Aeromonas salmonicida (c)
e) L-15 medium - Vibrio (d)
831. a) Gill rot - Fix the nitrogen (d)
b) Bacterial kidney disease - Bio-fertilizers (e)
c) Yellow head disease - Renibacterium (b)
d) Blue green algae - Virus (c)
e) Azolla weed - Branchiomyces (a)
832. a) BV - Protein efficiency (c)
b) PUFA - Biological value of feed (a)
c) PER - Renibacterium (e)
d) NDGA - Polyunsaturated lipid (b)
e) BKD - Nor diuretic acid (d)

51. 51
833. a) Mussel - Chlorella salina (b)
b) Microalgae - Algal control (e)
c) Blood clam - Anadora granosa (c)
d) Sodum Chloride - Parasite (d)
e) Calcium hypochlorite - M. edulis (a)
834. a) The arm ratio for the subtelocentric chromosome -1.7- 3.0 (d)
b) The arm ratio for the telocentric chromosome -3.1 – 7.0 (a)
c) The arm ratio for the metacentric chromosome -7.0 & above (b)
d) The arm ratio for the submetacentric chromosome - Ozonation (e)
e) Treatment of water - 1.0-1.7 (c)
835. a) Agriculture - Ecology (c)
b) Aquaculture - Science of crop farming (a)
c) Bionomics - Statistical study of biological problem (d)
d) Biometrics - Flow of energy (e)
e) Bioenergetics - Science of fish farming (b)
836. a) Deepest trench - Primary productivity (d)
b) A&N island - Mariana (a)
c) Dinoflagellates - East ridge (b)
d) Pheophytin - Disinfection of eggs (e)
e) Betaine - Red tide (c)
837. a) Aeromonas salmonicida - A. hydrophila (b)
b) Swim bladder inflammation - Low pH (d)
c) White spot disease - Furunculosis (a)
d) Glycogen to lactic acid - Artificial breeding (e)
e) Induced breeding - I. multiphilis (c)

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2. FISHERIES BIOLOGY
1. Logistic model was developed by
a) Schaefer b) Daniel pauly c) Gulland d) None
2. Chlorophyll estimation forms a major input data in
a) Logistic model b) Box model c) Stochastic model d) Analytical model
3. Which of the constant is referred as growth coefficient
a) K b) ∞ c) ω d) Lt
4. Lm/L α is an index to
a) Reproduction b) Reproductive stress c) Reproductive capacity d) None
5. Exploitation of a fish stock at right age is called as
a) Under fishing b) Over fishing c) Eumetric fishing d) None of these
6. Which ELEFAN system is used to study length frequency data
a) ELEFAN 5 b) ELEFAN 4 c) ELEFAN 3 d) ELEFAN 0
7. The curve used to show income distributions of people
a) Indifference curve b) Philips curve c) Lorenz curve d) None of these
8. Fish eggs with a small amount of yolk are called as
a) Oligolecithal b) Alecithal c) Isolecithal d) Telolecithal
9. The yolk sac is segmented in
a) Sciaenids b) Clupeids Serranids d) Flat fishes
10. Larval stage capable of reproducing is known as
a) Parthernogenesis b) Hermaphrodites c) Paedogenesis d) None of these
11. In tropical countries, the fish matures:
a) Early b) Late c) Seasonally d) At the given time
12. Reproductive function can be controlled by
a) Hypothalamus b) Insulin c) Thyroxin d) Adrenalin
13. Gonodotropic hormone with low carbohydrate content induces
a) Maturation and ovulation b) Vitellogenesis c) Spawning d) Hatching ratio
14. Vitellogenesis in decapod crustaceans is controlled by
a) Hormones b) Environmental condition c) Temperature d) Tide
15. Maturation process is inhibited by
a) Gonodotropin b) Environmental conditions c) GIH d) Temperature
16. Abalation of eyestalk in crustaceans
a) Accelerate vitellogenesis b) Retard maturation
c) Increase fecundity d) Promote mortality
17. The following hormones induces maturation and ovulation
a) LH and HCG b) GIH c) Crustecdysone d) Thyroxine
18. Complete extraction of Gonodotropin is done by
a) Saline solution b) Trichloro acetic acid c) Distilled water d) Alcohol

53. 53
19. Pituitary extract injection is usually given
a) Near anal fin b) Base of pectoral fin
c) Base of Anterior part of dorsal fin d) Near pelvic fin
20. Fishes are usually
a) Ureotelic and uricotelic b) Ureotelic c) Amminotelic and ureotelic d) Uricotelic
21. Sense organs found in fishes as unique feature
a) Auditory sense organs b) Olfactory sense organs
c) Lateral line organs d) Semi circular canals
22. Scales of elasmobranch are
a) Ctenoid b) Ganoid c) Cycloid d) Placoid
23. Petromyzon is not a true fish because of
a) Absence of operculum b) Absence of median fins
c) Absence of paired fins and true jaws d) Presence of gills
24. Heart in fishes
a) Two-chambered b) Four chambered c) Three chambered d) Six chambered
25. Gills are pouch-like in
a) Amphibia b) Pisces c) Cyclostomes d) All of these
26. Which of the following scales are present on the body of a lamprey?
a) Ctenoid b) Placoid c) Cycloid d) None of these
27. Which one of the following is a fish?
a) Sea urchin b) Sea horse c) Sea pen d) Sea lion
28. Air bladder is
a) Hydrostatic organs of bony fish b) Excretory organ of fish
c) Excretory organs of mammals d) Respiratory organs of cephlopids
29. Peculiarity of fish heart is that it has
a) No blood at all b) All venous blood
c) All arterial blood d) Partly arterial blood & Partly venous blood
30. A fish has no
a) Tail b) Head c) Neck d) Trunk
31. Which one of the following fishes can produce electricity?
a) Scoliodon b) Torpedo c) Hilsa d) All
32. Climbing fish is
a) Anguilla b) Labeo c) Scoliodon d) Anabas
33. Living fossil is
a) Dodo b) Dogfish c) Coelacanth (Latimeria) d) Flying fish
34. In fishes respiration takes place by
a) Gills, lungs and fins b) Gills
c) Lungs d) Gills and accessory respiratory organs
35. In adult fishes the kidney is
a) Opisthonephros b) Mesonephros c) Pronephros d) Metanephros