FISHERIES SCIENCE- PAGE 10
1. The planet Earth is covered by Oceans as much as
(A) 70.8% of its surface (B) 80.8% of its surface
(C ) 60.8% of its surface (D) 50.8% of its surface
Ans: A
2. The power required to overcome the hull resistance in a boat is called
(A) Brake horse power (B) Effective horse power
(C) Indicated horse power (D) Thermal horse power
Ans: B
3 . The new Eastern trade rate from Europe to Asia was established after the expedition to India by
(A) Christopher Columbus
(B) Vasco da Gama
(C) Ferdinand Magellan
(D) James cook
Ans: B
4. The scientific name of the mirror carp
5. When the Earth-Moon-Sun system is aligned in straight line and the tide caused under such condition is called
(A) Spring tide (B) Neap tide (C ) Food tide (D) Ebb tide
Ans: A
6. Unlike freshwater, sea water at 35 ppt continues to increase in density until it freezes at a temperature of
(A) 4°C
(B) 0°C
(C) -4°C
(D) -1.9°C
Ans: D
7. The quantity of heat absorbed or emitted without change of temperature during a change of state of unit mass of a material is celled
(A) Specific heat (B) Latent heat (C ) Sensible heat (D) Absolute heat
Ans: B
8. The trade winds which blow from the south east in southern hemisphere and from the north east in the northern hemisphere result in the formation currents called
(A) Equatorial counter currents
(B) Labrador current
(C ) Equatorial currents
(D) Florida current
Ans: C
9. A popular warm water current said to be responsible for the reduced population of anchovies in the coastal waters of Peru is called
(A) El Nino current
(B) La Nina current
(C) Alaska current
(D) California current
Ans: A
10. The overlapping joint of wood during boat construction is called
(A) Lap joint (B) Scarf joint (C ) Butt joint (D) Keel joint
Ans: A
11. In the biogenous sediment formation, foraminifers are responsible for the formation of
(A) Calcium carbonate (B) Silica (C) Manganese (D) Iron
Ans: A
12. The table containing the details of lines-drawing of a boat is called
(A) Hydrostatic table
(B) Lines of plan table
(C ) Offset table
(D) HaIf breadth plan table
Ans: C
13. Bobbins are attached in the foot rope of
(A) Trawl net
(B) Gill net
(C ) Purse seine
(D) Ring seine
Ans: A
14. The metal used as sacrificial anode in vessels constructed with Aluminium or steel to prevent corrosion is
(A) Zinc
(B) Cu
(C )Mg
(D) Stainless steel
Ans: A
15. The basic molecule present in the PA 6 is
(A) Poly-Carpolactum
(B) Poly Vinyl Alcohol
(C ) Poly ethylene
(D) Polyester
Ans: A
16. Warehousing of fishery products creates ____
(A) Time
(B) Place
(C) Form
(D) Possession
Ans: A
17. Advantages of sole-proprietorship include all of the following except
(A) Speedy decision making (B) Easy inception
(C) Transcending trade secrets (D)Shared responsibility
Ans: D
18. In the process of new product development test marketing is necessary to
(A) Identify potential customers
(B) Pretest before mass production
(C) Keep ready in bound logistics
(D) Conduct market research
Ans: B
19. Tunicata includes
(A) Acorn worms
(B) Sea squirts
(C) Lancelets
(D) None of the above
Ans: B
20. Maxillary belongs to
(A) Lateralline (B) Muscle (C) Tail (D) Jaw
Ans: D
21. The golden age of fishes is
(A) Tertiary (B) Triassic (C) Silurian (D) Devonian
Ans: D
22. Which fish has electric organ?
(A) Narcine timlei
(B) Labeo rohita
(C) Wallago attu
(D) Heteropneustes fossilis
Ans: A
23. In French, the term ‘fish’ is known as
(A) Fishch (B) Pisces (C) Poisson (D) Pescado
Ans: C
24. Sardinella longiceps is popularly called as
(A) Lesser sardine
(B) Oil sardine
(C) Rainbow sardine
(D) White sardine
Ans: B
25. Rabbit fishes come under the family
(A) Scomhridae (B) Xiphiidae (C) Signamidae (D) Eleotridae
Ans: C
26. Arowana is
(A) Ornamental fish (B) Flying fish (C) Fish pathogen (D) Squid
Ans: A
27. The cell wall of diatom is made up of
(A) Silica (B) Carbon (C) Calcium (D) Lipid
Ans: A
28. Artemia cysts hatch out in
(A) 20—40 % saline water (B) Pure fresh water
(C) Cold water of 0°C (D) Cold water of -5°C
Ans: A
29. A crustacean parasite is
(A) Trypanoplasma (B) Chlorella (C ) Lernea (D) Vallisneria
Ans: C
30. Veliger is the larval form of
(A) Polychaete (B) Crab (C) Snail (D) Molluscs
Ans: D
31. The fry of which fish feeds on the mucus of its parent
(A) Rohu (B) Gourami (C) Catla (D) Discus
Ans: D
32. Gold fish belongs to the genus
(A) Rasbora (B) Carassius (C) Cyprinus (D) Colisa
Ans: B
33. Pituitary gland is a
(A) Neuroepithelial complex (B) Epithelial complex
(C) Reproductive complex (D) Restigeal gland
Ans: A
34. In freshwater prawn from zoea to post larvae, the moulting occurs
(A) 5 times
(B) More than 10 times
(C) 7 times
(D) None of the above
Ans: B
35. Seer fish is
(A) Scomberomorus (B) Leiognathus (C ) Pampus (D) Polynemus
Ans: A
36. The normal strength of formalin preservative is
(A) 90-100%
(B) 50-65%
(C ) 75-80%
(D) 37-40%
Ans: D
37. Off—flavour in certain fresh water formed fish species is due to
(A) Cold
(B) Geosmin
(C) Cadaverine
(D) Cocci
Ans: B
38. Which is not a synthetic hormone
(A) Ovaprim
(B) Ovatide
(C) WOVA-FH
(D) HCG
Ans: D
39. Clasper in Elasmobranch is a
40. Microcystis bloom can be controlled by using
41. Prolactin in fishes is secreted by
(A) Sella turcica (B) Chromaffin tissue
(C ) Adenohypophysis (D) Neurohypophysis
Ans: C
42. Marks used in age determination by fish scales are,
(A) Radii (B) Circuli (C ) Annuli (D) None of the above
Ans: C
43. With regard to age determination Sagitta is associated with
(A) Pectoral fin (B) Scale (C ) Otolith (D) Spine
Ans: C
44. The value added marine pearls produced through CMFRI perfected technique are called as
(A) Baroque pearls
(B) Mabe pearls
(C) Keshi pearls
(D) Akoya pearls
Ans: B
45. The Indian EEZ area is
(A) 1.82 million sq. km.
(B) 0.86 million sq. km.
(C) 3.20 million sq. km.
(D) 2.02 million sq. km.
Ans: D
46. The Coelacanth, Latimeria is
47. Genus Homarus refers to
(A)Shrimp
(B) Scampi
(C ) Crab
(D) None of the above
Ans: D
48. Hippocampus is called as
49. Lower, Grand and Upper Anicuts are found in,
(A) Yamuna (B) Godavari
(C) Bhavani (D) Cauvery
Ans: D
50. Echinodorus is an
(A) Fish (B) Aquatic insect (C ) Aquarium plant (D) Echinoderm
Ans: C
(A) 70.8% of its surface (B) 80.8% of its surface
(C ) 60.8% of its surface (D) 50.8% of its surface
Ans: A
2. The power required to overcome the hull resistance in a boat is called
(A) Brake horse power (B) Effective horse power
(C) Indicated horse power (D) Thermal horse power
Ans: B
3 . The new Eastern trade rate from Europe to Asia was established after the expedition to India by
(A) Christopher Columbus
(B) Vasco da Gama
(C) Ferdinand Magellan
(D) James cook
Ans: B
4. The scientific name of the mirror carp
- Cyprinus carpio var. communis
- Cyprinus carpio var. specularis
- (C) Cyprinus carpio var. nudus
- Cyprinus carpio var. Flavipinnis
5. When the Earth-Moon-Sun system is aligned in straight line and the tide caused under such condition is called
(A) Spring tide (B) Neap tide (C ) Food tide (D) Ebb tide
Ans: A
6. Unlike freshwater, sea water at 35 ppt continues to increase in density until it freezes at a temperature of
(A) 4°C
(B) 0°C
(C) -4°C
(D) -1.9°C
Ans: D
7. The quantity of heat absorbed or emitted without change of temperature during a change of state of unit mass of a material is celled
(A) Specific heat (B) Latent heat (C ) Sensible heat (D) Absolute heat
Ans: B
8. The trade winds which blow from the south east in southern hemisphere and from the north east in the northern hemisphere result in the formation currents called
(A) Equatorial counter currents
(B) Labrador current
(C ) Equatorial currents
(D) Florida current
Ans: C
9. A popular warm water current said to be responsible for the reduced population of anchovies in the coastal waters of Peru is called
(A) El Nino current
(B) La Nina current
(C) Alaska current
(D) California current
Ans: A
10. The overlapping joint of wood during boat construction is called
(A) Lap joint (B) Scarf joint (C ) Butt joint (D) Keel joint
Ans: A
11. In the biogenous sediment formation, foraminifers are responsible for the formation of
(A) Calcium carbonate (B) Silica (C) Manganese (D) Iron
Ans: A
12. The table containing the details of lines-drawing of a boat is called
(A) Hydrostatic table
(B) Lines of plan table
(C ) Offset table
(D) HaIf breadth plan table
Ans: C
13. Bobbins are attached in the foot rope of
(A) Trawl net
(B) Gill net
(C ) Purse seine
(D) Ring seine
Ans: A
14. The metal used as sacrificial anode in vessels constructed with Aluminium or steel to prevent corrosion is
(A) Zinc
(B) Cu
(C )Mg
(D) Stainless steel
Ans: A
15. The basic molecule present in the PA 6 is
(A) Poly-Carpolactum
(B) Poly Vinyl Alcohol
(C ) Poly ethylene
(D) Polyester
Ans: A
16. Warehousing of fishery products creates ____
(A) Time
(B) Place
(C) Form
(D) Possession
Ans: A
17. Advantages of sole-proprietorship include all of the following except
(A) Speedy decision making (B) Easy inception
(C) Transcending trade secrets (D)Shared responsibility
Ans: D
18. In the process of new product development test marketing is necessary to
(A) Identify potential customers
(B) Pretest before mass production
(C) Keep ready in bound logistics
(D) Conduct market research
Ans: B
19. Tunicata includes
(A) Acorn worms
(B) Sea squirts
(C) Lancelets
(D) None of the above
Ans: B
20. Maxillary belongs to
(A) Lateralline (B) Muscle (C) Tail (D) Jaw
Ans: D
21. The golden age of fishes is
(A) Tertiary (B) Triassic (C) Silurian (D) Devonian
Ans: D
22. Which fish has electric organ?
(A) Narcine timlei
(B) Labeo rohita
(C) Wallago attu
(D) Heteropneustes fossilis
Ans: A
23. In French, the term ‘fish’ is known as
(A) Fishch (B) Pisces (C) Poisson (D) Pescado
Ans: C
24. Sardinella longiceps is popularly called as
(A) Lesser sardine
(B) Oil sardine
(C) Rainbow sardine
(D) White sardine
Ans: B
25. Rabbit fishes come under the family
(A) Scomhridae (B) Xiphiidae (C) Signamidae (D) Eleotridae
Ans: C
26. Arowana is
(A) Ornamental fish (B) Flying fish (C) Fish pathogen (D) Squid
Ans: A
27. The cell wall of diatom is made up of
(A) Silica (B) Carbon (C) Calcium (D) Lipid
Ans: A
28. Artemia cysts hatch out in
(A) 20—40 % saline water (B) Pure fresh water
(C) Cold water of 0°C (D) Cold water of -5°C
Ans: A
29. A crustacean parasite is
(A) Trypanoplasma (B) Chlorella (C ) Lernea (D) Vallisneria
Ans: C
30. Veliger is the larval form of
(A) Polychaete (B) Crab (C) Snail (D) Molluscs
Ans: D
31. The fry of which fish feeds on the mucus of its parent
(A) Rohu (B) Gourami (C) Catla (D) Discus
Ans: D
32. Gold fish belongs to the genus
(A) Rasbora (B) Carassius (C) Cyprinus (D) Colisa
Ans: B
33. Pituitary gland is a
(A) Neuroepithelial complex (B) Epithelial complex
(C) Reproductive complex (D) Restigeal gland
Ans: A
34. In freshwater prawn from zoea to post larvae, the moulting occurs
(A) 5 times
(B) More than 10 times
(C) 7 times
(D) None of the above
Ans: B
35. Seer fish is
(A) Scomberomorus (B) Leiognathus (C ) Pampus (D) Polynemus
Ans: A
36. The normal strength of formalin preservative is
(A) 90-100%
(B) 50-65%
(C ) 75-80%
(D) 37-40%
Ans: D
37. Off—flavour in certain fresh water formed fish species is due to
(A) Cold
(B) Geosmin
(C) Cadaverine
(D) Cocci
Ans: B
38. Which is not a synthetic hormone
(A) Ovaprim
(B) Ovatide
(C) WOVA-FH
(D) HCG
Ans: D
39. Clasper in Elasmobranch is a
- Barbel
- Copulatory organ
- Poisonous spine
- Electric organ
40. Microcystis bloom can be controlled by using
- Simazine
- BHC
- Gammexane
- Teepol
41. Prolactin in fishes is secreted by
(A) Sella turcica (B) Chromaffin tissue
(C ) Adenohypophysis (D) Neurohypophysis
Ans: C
42. Marks used in age determination by fish scales are,
(A) Radii (B) Circuli (C ) Annuli (D) None of the above
Ans: C
43. With regard to age determination Sagitta is associated with
(A) Pectoral fin (B) Scale (C ) Otolith (D) Spine
Ans: C
44. The value added marine pearls produced through CMFRI perfected technique are called as
(A) Baroque pearls
(B) Mabe pearls
(C) Keshi pearls
(D) Akoya pearls
Ans: B
45. The Indian EEZ area is
(A) 1.82 million sq. km.
(B) 0.86 million sq. km.
(C) 3.20 million sq. km.
(D) 2.02 million sq. km.
Ans: D
46. The Coelacanth, Latimeria is
- Extinct
- Living fossil
- Cat fish
- Herbivorous
47. Genus Homarus refers to
(A)Shrimp
(B) Scampi
(C ) Crab
(D) None of the above
Ans: D
48. Hippocampus is called as
- Sea horse
- Sea weed
- Coral
- Box fish
49. Lower, Grand and Upper Anicuts are found in,
(A) Yamuna (B) Godavari
(C) Bhavani (D) Cauvery
Ans: D
50. Echinodorus is an
(A) Fish (B) Aquatic insect (C ) Aquarium plant (D) Echinoderm
Ans: C
51. Minnows are
(A) Cat fishes (B) Hill stream fishes (C) Exotic fishes (D) Weed fishes
Ans: D
52. The grass crap is native of
(A) Rivers of Japan (B) River Amur of Russia
(C) Rivers of India (D) Rivers of China and Russia
Ans: D
53. MS 222 is a
(A) Fish anaesthetic
(B) Hormone
(C) Antibiotic
(D) Gas
Ans: A
54. Zoogeographically, largest number of fish species occur in the areas of
(A) Temperate
(B)Tropics
(C) Arctic
(D) Antarctic
Ans: B
55. Kryptopterus is
(A) White worm
(B) Transparent cat fish
(C) Milfoil
(D) Kissing Gourami
Ans: B
56. Pituitary doses are injected
(A) Intraperitoneally
(B) Intramuscularly
(C) Both
(D) None
Ans: C
57. Chicken manure is high in
(A) Sodium content
(B) Nitrogen content
(C) Zinc content
(D) Ammonia content
Ans: B
58. The largest producer of edible seaweed is
(A) Singapore (B)Japan (C) Thailand (D) Indonesia
Ans: B
59. This factor has been identified a major cause of larval fish mortality
(A) Temperature (B) Oxygen (C) Waves (D) Predation
Ans: B
60. The white spot disease or ichthophthiriosis is a common disease of
(A) Shrimps (B) Lobsters (C) Crabs (D) Fishes
Ans: D
61. The clean plastic used to make aquarium tank is prepared by polymerization of
(A) Calcium carbonate (B) Polyvinylchloride
(C) Methyl cyanate (D) Methyl methacrylate
Ans: D
62. Most productive sea waters are in
(A) Continental slope (B) Continental shelf
(C) Continental rise (D) None of the above
Ans: B
63. Ichthyophtirius causes
(A) White spot disease (B) Dropsy
(C) EUS (D) None of the above
Ans: A
64. See weeds are used as raw material for the preparation of
(A) Agar (B) Alginate (C) Liquid sea weed fertilizer (D) All the above
Ans: D
65. The introduction of exotic species for aquaculture purposes may affect the biodiversity and genetic resources through
(A) Interbreeding (B) Competition for food
(C) Habitat destruction (D)All the above.
Ans: D
66. The bacterial disease ‘dropsy’ affecting farmed fish could be effectively treated using
(A) Asta Xanthin in feed (B) Terramycin in feed
(C) Benzene in feed (D) Estradiol in feed
Ans: B
67. Fish genetic studies in India are mainly carried out by
(A) NBFGR (B) CIFA (C) CIBA (D) NFDB
Ans: A
68. Ideal shape for constructing fish pond is
(A) Circular (B) Square (C) Hexagonal (D) Rectangular
Ans: D
69. Pangassius sp is a
(A) Cat fish (B) Murrel (C) Carp (D) Minnow
Ans: A
70. Puberogen is a mixture of
(A) FSH and LH (B) HCG and LH
(C) Pituitary and LH (D) HCG and FSH
Ans: A
71. Fjord is
(A) Estuary (B) Bheel (C) River (D) Lake
Ans: A
72. The most commonly used feed for rotifer is
(A) Tetraselmis (B) Chlorella (C ) Microcystis (D) Isocrysis
Ans: B
73. Pituitary gland extract induces
(A) Development (B) Secretion (C) Ovulation (D) None of the above
Ans: C
74. Berms are related to
(A) Breeding (B) Harvest (C ) Construction (D) Manuring
Ans: C
75. Saprolegnia is a
(A) Protozoan (B) Flagellate (C ) Fungus (D) Worm
Ans: C
76. Pineal organ in fish secretes
77. Nansen bottle is used to collect
78. Which of the following is an antibiotic?
(A) Methylene Blue (B) Acriflavin (C) Malachite Green (D) Penicillin
Ans: D
79. Shrimp larval stages are fed with
(A) Artemia (B) Brachionus (C) Isochrysis (D) All
Ans: D
80. Gypsum is used for the correction of
(A) Alkaline pH in soil (B) Acidic pH in soil
(C) Stable pH in soil (D) Neutral pH in soil
Ans: A
81. Oxbow lakes are
(A) Horse shoe shaped (B) Lotic
(C ) Square shaped (D) Rectangular shaped
Ans: A
82. The Green turtle, Chelonia mydas breeds at the age of
(A) Ten (B) Four (C) Twenty (D) Two
Ans: B
83. The nitrogenous biofertiliser suitable for aquaculture is
(A) Azolla (B) Saponin
(C) Urea (D) Super phosphate
Ans: A
84. In fresh water Prawns, egg hatches into
(A) Protozoea (B) Nauplius (C) Mysis (D) Zoea
Ans: D
85. To calculate the ‘condition factor’, which of the following is studied?
(A) Length-weight relationship
(B) Length frequency determination
(C) Weight of ovary and weight of body relationship
(D) Health of the fish
Ans: A
86. Water mass in oceans is characterised by
87. Read the following and find out the incorrect one
(A) Aquaculture Authority of India- Chennai
(B) Integrated Fisheries Project-Cochin
(C) Fisheries Survey of India-Mumbai
(D) NFDB-Calcutta
Ans: D
88. The following detritivorous marine and brackishwater polychaete could be used for biofiltration of waste water
89. Fish migration towards sea is
(A) Anadromous
Catadromous
Diadromous
(D) None of the above
Ans: B
90. Light and dark bottle method is related to
(A) DO
(B) C14
(C ) Primary production
(D) Temperature
Ans: C
91. Fish gonads are usually classified, according to Wood into
(A) VIII stages
(B) VI stages
(B) V stages
(D) IX stages
Ans: A
92. Values of alkalinity that adversely affect the spawning and hatching of Carps are
(A) Above 300 ppm (B) 100-200 ppm (C ) Below 100 ppm (D) None of the above
Ans: A
93. Submerged weed type includes
(A) Typha (B) Lemna (C ) Chara (D) Ipomoea
Ans: C
93. The marks used to identify well defined channels are called as
(A) Cardinal marks (B) Lateral marks (C) Special marks (D) None of these
Ans: A
94. Spring tides occur during
(A) Full and New Moon days (B) All days
(C) Solar eclipse (D) All the above
Ans: A
95. Lime is used for the correction of
(A) pH (B) Pond water colour
(C) Varying growth in fish (D) Condition factor (k)
Ans: A
96. Avicennia is
(A) Zooplankton (B) Fresh water plant (C ) Mangrove plant (D) Diatom
Ans: C
97. Secchi disc is used to measure
(A) Oxygen (B) pH (C ) Turbidity (D) Hardness
Ans: C
98. The major food of Baleen whales is
(A) Smallfishes (B) Krill (C) Molluscs (D) Seals
Ans: B
99. Among the common commercially important fishes of India, the maximum water content is found in the following fish species
100. In fish spoilage the term, “Rank" is synonymous with
(A) Place in sequence (B) Hierarchical order (C) Rancidity (D) Autolysis
Ans: C
(A) Cat fishes (B) Hill stream fishes (C) Exotic fishes (D) Weed fishes
Ans: D
52. The grass crap is native of
(A) Rivers of Japan (B) River Amur of Russia
(C) Rivers of India (D) Rivers of China and Russia
Ans: D
53. MS 222 is a
(A) Fish anaesthetic
(B) Hormone
(C) Antibiotic
(D) Gas
Ans: A
54. Zoogeographically, largest number of fish species occur in the areas of
(A) Temperate
(B)Tropics
(C) Arctic
(D) Antarctic
Ans: B
55. Kryptopterus is
(A) White worm
(B) Transparent cat fish
(C) Milfoil
(D) Kissing Gourami
Ans: B
56. Pituitary doses are injected
(A) Intraperitoneally
(B) Intramuscularly
(C) Both
(D) None
Ans: C
57. Chicken manure is high in
(A) Sodium content
(B) Nitrogen content
(C) Zinc content
(D) Ammonia content
Ans: B
58. The largest producer of edible seaweed is
(A) Singapore (B)Japan (C) Thailand (D) Indonesia
Ans: B
59. This factor has been identified a major cause of larval fish mortality
(A) Temperature (B) Oxygen (C) Waves (D) Predation
Ans: B
60. The white spot disease or ichthophthiriosis is a common disease of
(A) Shrimps (B) Lobsters (C) Crabs (D) Fishes
Ans: D
61. The clean plastic used to make aquarium tank is prepared by polymerization of
(A) Calcium carbonate (B) Polyvinylchloride
(C) Methyl cyanate (D) Methyl methacrylate
Ans: D
62. Most productive sea waters are in
(A) Continental slope (B) Continental shelf
(C) Continental rise (D) None of the above
Ans: B
63. Ichthyophtirius causes
(A) White spot disease (B) Dropsy
(C) EUS (D) None of the above
Ans: A
64. See weeds are used as raw material for the preparation of
(A) Agar (B) Alginate (C) Liquid sea weed fertilizer (D) All the above
Ans: D
65. The introduction of exotic species for aquaculture purposes may affect the biodiversity and genetic resources through
(A) Interbreeding (B) Competition for food
(C) Habitat destruction (D)All the above.
Ans: D
66. The bacterial disease ‘dropsy’ affecting farmed fish could be effectively treated using
(A) Asta Xanthin in feed (B) Terramycin in feed
(C) Benzene in feed (D) Estradiol in feed
Ans: B
67. Fish genetic studies in India are mainly carried out by
(A) NBFGR (B) CIFA (C) CIBA (D) NFDB
Ans: A
68. Ideal shape for constructing fish pond is
(A) Circular (B) Square (C) Hexagonal (D) Rectangular
Ans: D
69. Pangassius sp is a
(A) Cat fish (B) Murrel (C) Carp (D) Minnow
Ans: A
70. Puberogen is a mixture of
(A) FSH and LH (B) HCG and LH
(C) Pituitary and LH (D) HCG and FSH
Ans: A
71. Fjord is
(A) Estuary (B) Bheel (C) River (D) Lake
Ans: A
72. The most commonly used feed for rotifer is
(A) Tetraselmis (B) Chlorella (C ) Microcystis (D) Isocrysis
Ans: B
73. Pituitary gland extract induces
(A) Development (B) Secretion (C) Ovulation (D) None of the above
Ans: C
74. Berms are related to
(A) Breeding (B) Harvest (C ) Construction (D) Manuring
Ans: C
75. Saprolegnia is a
(A) Protozoan (B) Flagellate (C ) Fungus (D) Worm
Ans: C
76. Pineal organ in fish secretes
- Seratonin
- Melatonin
- Adrenalin
- None of the above
77. Nansen bottle is used to collect
- Water sample
- Sediment
- Pollutants
- None of the above
78. Which of the following is an antibiotic?
(A) Methylene Blue (B) Acriflavin (C) Malachite Green (D) Penicillin
Ans: D
79. Shrimp larval stages are fed with
(A) Artemia (B) Brachionus (C) Isochrysis (D) All
Ans: D
80. Gypsum is used for the correction of
(A) Alkaline pH in soil (B) Acidic pH in soil
(C) Stable pH in soil (D) Neutral pH in soil
Ans: A
81. Oxbow lakes are
(A) Horse shoe shaped (B) Lotic
(C ) Square shaped (D) Rectangular shaped
Ans: A
82. The Green turtle, Chelonia mydas breeds at the age of
(A) Ten (B) Four (C) Twenty (D) Two
Ans: B
83. The nitrogenous biofertiliser suitable for aquaculture is
(A) Azolla (B) Saponin
(C) Urea (D) Super phosphate
Ans: A
84. In fresh water Prawns, egg hatches into
(A) Protozoea (B) Nauplius (C) Mysis (D) Zoea
Ans: D
85. To calculate the ‘condition factor’, which of the following is studied?
(A) Length-weight relationship
(B) Length frequency determination
(C) Weight of ovary and weight of body relationship
(D) Health of the fish
Ans: A
86. Water mass in oceans is characterised by
- Sea surface temperature
- Zooplankton abundance
- Temperature salinity profile
- Density
87. Read the following and find out the incorrect one
(A) Aquaculture Authority of India- Chennai
(B) Integrated Fisheries Project-Cochin
(C) Fisheries Survey of India-Mumbai
(D) NFDB-Calcutta
Ans: D
88. The following detritivorous marine and brackishwater polychaete could be used for biofiltration of waste water
- Polydora ciliata
- Nereis diversicolor
- Eunice eunice
- Capitella capitata
89. Fish migration towards sea is
(A) Anadromous
Catadromous
Diadromous
(D) None of the above
Ans: B
90. Light and dark bottle method is related to
(A) DO
(B) C14
(C ) Primary production
(D) Temperature
Ans: C
91. Fish gonads are usually classified, according to Wood into
(A) VIII stages
(B) VI stages
(B) V stages
(D) IX stages
Ans: A
92. Values of alkalinity that adversely affect the spawning and hatching of Carps are
(A) Above 300 ppm (B) 100-200 ppm (C ) Below 100 ppm (D) None of the above
Ans: A
93. Submerged weed type includes
(A) Typha (B) Lemna (C ) Chara (D) Ipomoea
Ans: C
93. The marks used to identify well defined channels are called as
(A) Cardinal marks (B) Lateral marks (C) Special marks (D) None of these
Ans: A
94. Spring tides occur during
(A) Full and New Moon days (B) All days
(C) Solar eclipse (D) All the above
Ans: A
95. Lime is used for the correction of
(A) pH (B) Pond water colour
(C) Varying growth in fish (D) Condition factor (k)
Ans: A
96. Avicennia is
(A) Zooplankton (B) Fresh water plant (C ) Mangrove plant (D) Diatom
Ans: C
97. Secchi disc is used to measure
(A) Oxygen (B) pH (C ) Turbidity (D) Hardness
Ans: C
98. The major food of Baleen whales is
(A) Smallfishes (B) Krill (C) Molluscs (D) Seals
Ans: B
99. Among the common commercially important fishes of India, the maximum water content is found in the following fish species
- Harpodon nehereus
- Sardinella longiceps
- Caranx sp.
- Pampus argenteus
100. In fish spoilage the term, “Rank" is synonymous with
(A) Place in sequence (B) Hierarchical order (C) Rancidity (D) Autolysis
Ans: C
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