Fisheries • 2017 • Technical Paper-II
According to the USDA, the minimum size of the fish pond should be :
A)
0.1 ha
B)
0.5 ha
C)
0.2 ha
D)
0.25 ha
USDA minimum manageable fish pond ~0.1 ha (0.25 acre).
Fisheries • 2017 • Technical Paper-II
Biofertilizers can replace …….% chemical fertilizers
A)
25-30%
B)
60 %
C)
35-40%
D)
44-46%
Biofertilizers can replace 25-30% chemical fertilizer requirement.
Fisheries • 2017 • Technical Paper-II
Which type outlet is most suitable for draining bottom water?
A)
Monk type
B)
Pipe made structure
C)
Open type
D)
All of these
Monk type outlet with vertical boards allows selective drainage of bottom water.
Fisheries • 2017 • Technical Paper-II
The outer integument of crustacean is made up of how many layers?
A)
Two
B)
Five
C)
Three
D)
Seven
Crustacean cuticle: epicuticle, exocuticle, endocuticle = 3 main calcified layers (plus membranous layer).
Fisheries • 2017 • Technical Paper-II
A decrease in temperature, increases the…………of a fatty acid
A)
Saturation
B)
Both
C)
Unsaturation
D)
None of these
Homeoviscous adaptation: at low temp membrane fluidity maintained by increasing unsaturated fatty acids (lower melting point).
Fisheries • 2017 • Technical Paper-II
Present Per capita per annum availability in India :
A)
6.5 kg
B)
7.9 kg
C)
9.6 kg
D)
11 kg
Around 2016-17 ICAR/MPEDA figures quoted per capita fish availability ~9-10 kg/annum; 9.6 kg among options.
Fisheries • 2017 • Technical Paper-II
Hypophysation refers to:
A)
Moulting
B)
Eyestalk ablation
C)
Hybridization
D)
Induced breeding with pituitary extracts
Hypophysation = induced breeding technique using pituitary gland extract to induce ovulation/spawning.
Fisheries • 2017 • Technical Paper-II
Production of semi-intensive farming(kg/ha/year):
A)
1,200-2,000
B)
5,000-12,000
C)
3,000-5,000
D)
> 12,000
Extensive 1200-2000, semi-intensive 3000-5000, intensive 5000-12000 kg/ha/year.
Fisheries • 2017 • Technical Paper-II
Gypsum is :
A)
CuSO4
B)
NaCl2
C)
CaSO4
D)
MgCO3
Gypsum is calcium sulfate dihydrate CaSO4·2H2O.
Fisheries • 2017 • Technical Paper-II
Wheel animals is related to :
A)
Artemia
B)
Moina
C)
Rotifers
D)
Daphnia
Rotifers are called wheel animals due to ciliated corona.
Fisheries • 2017 • Technical Paper-II
Father of Blue Revolution in India:
A)
V.G Jhingran
B)
Francis Day
C)
Hiralal Chaudhuri
D)
M.S Swaminathan
Hiralal Chaudhuri pioneered induced breeding of carps, regarded as father of Blue Revolution in India.
Fisheries • 2017 • Technical Paper-II
Dr.Chaudhuri and Dr.Alikunni succeeded in induced breeding of carps by injecting carp pituitary extract in the year:
A)
1937
B)
1967
C)
1957
D)
1947
Hiralal Chaudhuri and K.H. Alikunhi first succeeded in induced breeding of Indian major carps with pituitary injection in 1957 at Cuttack.
Fisheries • 2017 • Technical Paper-II
In sewage fed fish culture:
A)
No oxidation pond is required
B)
Serial oxidation ponds are required
C)
Sewage water is directly used
D)
Single oxidation pond is required
Sewage must be treated before use. Serial oxidation/stabilization ponds are used to reduce BOD, pathogens and produce plankton-rich water for fish culture.
Fisheries • 2017 • Technical Paper-II
Starving the fishes before packing for transportation is known as:
A)
Acclimatization
B)
Conditioning
C)
Sedation
D)
Quarantining
Conditioning = starving/holding fish in clean water to empty gut before transport.
Fisheries • 2017 • Technical Paper-II
Name of mechanical time piece:
A)
Chronometers
B)
E M log
C)
Compass
D)
None of these
Chronometer is precise mechanical time piece used for navigation.
Fisheries • 2017 • Technical Paper-II
In larval rearing of shrimp, freshly hatched artemia nauplii are fed from:
A)
Nauplius stage
B)
Mysis I stage
C)
Protozoea I stage
D)
Mysis III stage
Shrimp nauplius lecithotrophic; protozoea feeds on phytoplankton; mysis onwards feed on zooplankton Artemia nauplii.
Fisheries • 2017 • Technical Paper-II
National freshwater fish is known as:
A)
Freshwater shark
B)
Stream trout
C)
Mahseer
D)
Indian major carp(IMC)
Mahseer is considered national freshwater fish / game fish of India.
Fisheries • 2017 • Technical Paper-II
First attempt to transplant trout in India is made at:
A)
Himachal Pradesh
B)
Nainital
C)
Jamu & Kashmir
D)
Nilgiris
First trout transplant attempt in India was in Nilgiris (Ooty) 1863 by Francis Day, later in Kashmir and Himalayan waters.
Fisheries • 2017 • Technical Paper-II
Myocommata is a :
A)
Connective tissue
B)
Membrane
C)
Muscle fibre
D)
Muscle bundle
Myocommata/myosepta are connective tissue partitions between myomeres.
Fisheries • 2017 • Technical Paper-II
Duration of quarantine period is:
A)
2- 3 weeks
B)
1 month
C)
1 week
D)
30 min -1 hr
Quarantine of new fish stock typically 2-3 weeks to detect disease.
Fisheries • 2017 • Technical Paper-II
Bighead carp :
A)
Zooplankton feeder
B)
Omnivorous
C)
Phytoplankton feeder
D)
Macrophytes feeder
Bighead carp Aristichthys nobilis is primarily zooplankton feeder, silver carp phytoplankton feeder.
Fisheries • 2017 • Technical Paper-II
The process of lost gillnets continuing to gill fishes leading to unwanted mortality is called:
A)
Trap fishing
B)
Ghost fishing
C)
Deep sea fishing
D)
Drag fishing
Lost or abandoned gillnets continuing to catch is ghost fishing, causes unwanted mortality.
Fisheries • 2017 • Technical Paper-II
The most rapid method of surveying is:
A)
Compass surveying
B)
Chain surveying
C)
Plane table surveying
D)
None of these
Plane table surveying plots map in field simultaneously, hence most rapid for small areas.
Fisheries • 2017 • Technical Paper-II
The largest freshwater fish in the world is:
A)
Huso huso
B)
Mola mola
C)
Wallago attu
D)
Oarfish
Huso huso (beluga sturgeon) is largest freshwater fish; Mola is marine, Wallago smaller.
Fisheries • 2017 • Technical Paper-II
……of the total farm area are reserved for pond
A)
50%
B)
75%
C)
60%
D)
80%
In standard aquaculture farm layout water spread area reserved for pond is ~50% of total farm area, rest for dykes, channels, etc.
