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NABARD Agri 2025 > Fisheries > Flashcards

Fisheries Flashcards

1
Q

Contribution of Fisheries to national GVA?

A

1.06%

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2
Q

Contribution of Fisheries to agriculture GVA

A

6.86%

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3
Q

Grass carp scientific name

A

Ctenopharyngodon idellus

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4
Q

Silver carp scientific name?

A

Hypophthalmichthys molitrix

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5
Q

Scientific name of Nile Tilapia

A

Oreochromis niloticus

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6
Q

India is the ____ largest fish producing country with ____% global share

A

3rd largest
8%

162 lakh tonnes

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7
Q

India is the ____ largest aquaculture producing nation in the world

A

2nd

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8
Q

Which superclass do fishes belong to? It is further divided into?

A

Gnathostomata
Chondrichthyes & Osterichthyes

C = Cartiledge, O = Osteo/bones

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9
Q

Examples of Osteichthyes

A
  • Freshwater Bony fishes (Labeo rohita, Labeo catla)
  • Lungfishes
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10
Q

Example of Chondrichthyes

A

Marine Fishes like Shark, Ray, Skates, Sawfish

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11
Q

Lepidosiren, Neoceratodus, Protopterus are example of?

A

Lungfishes

Osteichthyes

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12
Q

Hippocampus and Exocetus are examples of?

A

Marine Bony Fishes

Sea Horse and Flying Fish

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13
Q

Which fish has the highest % of protein?

A

Fatty Fish

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14
Q

Masula boats are used in which of the following parts of India?

A

Madras Coast

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15
Q

Smoking in fish is a form of?

A

Preservation

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16
Q

Fish that live in salt water but breed in fresh water

Hilsa, Lamprey, salmon

A

Anadromous

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17
Q

Fish that live in fresh water but breed in saltwater

A

Catrodomonous Fish

eel

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18
Q

Which fish are bottom Feeder? Middle Feeder? Column Feeder

A
  • Catla and Silver & Grass Carp are surface feeders,
  • Rohu & Grass Carp is a column feeder
  • Mrigal and Common & Grass Carp are bottom feeders.

1 Indigenous and exotic breed

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19
Q

Nodal Agency for holistic development of seafood industry, including export of marine products in India

A

MPEDA (1972)

Marine Products Export Development Authority

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20
Q

Optimum pH required for most of freshwater fish is?

A

6.5-10

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21
Q

In inland fisheries which fish has been banned due to their predatory nature?

A

African catfish

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22
Q

Traditional methods of processing fish by salting, drying, smoking, pickling is known as?

A

Curing

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23
Q

Fish that move and live their entire life in freshwater?

A

Potadromous

Catfish, Salmon - potable water

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24
Q

A major indigenous carp, which is the fastest growing among fin fishes?

A

Catla

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25
Q

An organic substance, often used in fish ponds

A

Cow Dung

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26
Q

Managed aquaculture dependent on local natural setting, such as pond or coastal sea area

A

Extensive Aquaculture

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27
Q

Managed aquaculture controlled through human engineered means, such as managing water quality and sources of food

A

Intensive aquaculture

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28
Q

Migratory fishes that live in both fresh & salty water, independent of breeding

A

Amphidromous

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29
Q

Organisms able to adapt to a wide range of salinities is? Give an example

A

Euryhaline

Molly, green crab

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30
Q

An organism, that cannot tolerate a wide fluctuation in salinity

A

Stenohaline

Goldfish

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31
Q

A wastewater treatment gained vital importance in aquaculture. The principle of this method is to maintain a high C:N ratio by adding a carbohydrate source and water quality is improved through the production of high quality single-cell microbial protein

A

Biofloc Technique

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32
Q

Which fish is called an ‘aquatic chicken’

A

Tilapia

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33
Q

A technology where water is recycled and reused after mechanical and biological filtration - removal of suspended matter and metabolites Through the system and not more than 10% of the total water volume of the system is replaced daily

A

Recirculatory Aquaculture system (RAS)

Less water req than traditional

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34
Q

According to the UN 2024 study called the ‘State of World Fisheries & Aquaculture’, which fish was the most fished marine species in 2022, ranking 8th in the world

A

Catla

Rohu & Mrigal ranking 2nd

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35
Q

Most common fresh water bacterial aquarium infection. Fish shows bloody sport or ulcers on the body, ragged fins and enlarged eyes

A

Aeromonas infection

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36
Q

Dropsy a disease in fishes causing bloating, is caused by?

A

Bacteria

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37
Q

Red Pest a disease of fishes caused by?

A

Ciprinida Bacteria

bloody streaks in fins

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38
Q

Vibrisis in fishes is caused by?

A

Bacteria

1 month mortality syndrome

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39
Q

Fish that socialise or hang out in loose groups in the same place are said to be?

A

Shoal

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40
Q

the production or deposition of large amount of eggs in water?

A

Spawning

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41
Q

Area along the river edge is called?

A

Riparian Zone

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42
Q

Growing stage of fishes

A

Spawn -> Egg -> Larvae (Hatchling) -> Fry -> Juvenile -> Adult

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43
Q

Spawn assuming the shape of a fish and grows about 1-2 cm, it is known as?

A

Fry

zooplankton feeder

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44
Q

The development stage of fish that lasts upto 1 year of age

A

Yearling

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45
Q

Fishery Resource is divided into 2 parts?

A

Fin fishery and Non-fin fishery

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46
Q

Capture fishery can be practiced in?

A

Marine & Inland Fishery

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46
Q

Culture Fishery can be practiced in?

A

Fresh water, Brackish water, Cage aqua culture, Ornamental fishery (aquarium)

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47
Q

Examples of non-fin fishery?

A

Oysters, lobsters, prawns, crabs

48
Q

Tank & Pond Fishery is practiced popularly in?

Inland fishery

A

Andhra Pradesh

49
Q

River & Canal Inland Fishery is popularly practiced in?

A

Uttar Pradesh

50
Q

Reservoir inland fishery is practiced popularly in?

A

Tamil Nadu

51
Q

Brackish Water inland fishery?

52
Q

True fishes (gills, fins, vertebrae) belong to which superclass?

53
Q

Marine fishery is divided into 3 zones?

A
  1. Pelagic - top
  2. Demersal - bottom
  3. Deep Sea - below photic zone
54
Q

Fish that live and feed on or near the bottom of sea or lakes

A

Demersal fish

55
Q

labeo rohita, catla catla, L. Calabasu and Cirrhinus mrigala are what kind of carps?

A

Major carps

56
Q

Labeo fimbriatus, L. bata, Cirrhinus reba are what kind of carps?

A

Minor carps

57
Q

Pond size varies from?

A

0.1-0.05 ha to 5 ha

Super intensive to Extensive

58
Q

The most common reproductive strategy in marine ecosystems is? Marine fishes generally fall in which category?

A

Oviparity

90% of bony and 43% of cartilaginous fish

59
Q

Ovoviviparity mostly occurs in?

A

Most Sharks & Rays

Greater protection from females

60
Q

Viviparity is seen mostly in?

A

Some sharks

61
Q

Ratio of major carps in ponds to utilize vertical space?

A

3 species: 4:3:3
4 species: 3:3:2 & 2 (common carp)
6 species: 1.5: 2:1.5:1.5:1.5:2

All adds to 10

62
Q

Steps in composite fish culture are?

A

Selection of Pond -> Pond Management -> stocking -> harvest

63
Q

What is the dosage of liming in the pre-stocking phase of pond management?

A

200-250 kg/ha

64
Q

Lime dosage for ponds with very high pH (highly alkaline) and for very low pH (highly acidic)?

A

pH 4-5 = 2,000 kg/ha
pH 8.6-9.5 = n/a

65
Q

Cow dung - as organic fertiliser is applied at dose?

A

5000 kg/ha

66
Q

Pond will be ready for stocking after ____ days of application of fertiliser

67
Q

In composite culture, fish fingerlings of ____ size should be used for stocking @5000 nos per ha

68
Q

Recommended feeding rate is ____% of body body weight upto 500g size of fish and then reduced to ____% of body weight from 500-1000g. in composite culture

69
Q

Organic manure to be added after stocking in composite culture, at the rate of?

A

Rs. 1000 kg/ha

70
Q

When is harvesting done for fishes in composite culture? At what weight is it done?

A

At the end of 1st year
When the fishes attain average weight of 800 g-1.25 kg

71
Q

What is soil pH required for wet land fishery

72
Q

Dissolved oxygen in wet land fishery? - imp

A

5-7 ppm
(5-7 mg O2/L of water)

73
Q

Pond size in wet land pond will be?

A

0.4-1.5 ha

74
Q

The culture period in wet lands would be maximum of?

A

7-8 months

harvest

75
Q

In wet land ponds, advanced fingerlings upto ____ should be stocked, and avg growth of ____ would be possible in culture period.

A

50 g
600-700g

harvesting period and growth is less than composite

76
Q

Grow out period of wet land fishery?

A

7-8 months

77
Q

Survival rate of fishes in wet land ponds?

78
Q

Culture period in integrated fish farming with dairy

A

around 11 months

700-800g possible

79
Q

Stocking density in integrated fish farming with dairy is? - imp

80
Q

Grow out period in integrated fish farming with dairy is?

81
Q

grow out period in integrated fish farming with poultry is a max ____ weeks for broilers and max 4 batches are taken a year

82
Q

integrated fish farming with poultry, ____ birds are required to fertilise 1 ha of pond

A

500-600 birds

83
Q

White legged shrimp scientific name

A

Litopenaeus vannamei

84
Q

Scientific name of Tiger Shrimp?

A

P. monodon

tiger = don

85
Q

Which shrimp is fastest growing?

A

Tiger prawn

86
Q

RAMPHANI is related to? it is found in?

A

Dug Out Cannoe
Goa

87
Q

Plank Built Cannoes are found in?

A

Kerala region

88
Q

Outrigger Cannoes are found in?

89
Q

1st open sea cage farming is found in?

A

Vizag

by CMFRI

90
Q

Time taken for wild lobsters to grow to legal size of harvest? Time commercially?

A

5-7 years
6-7 months

91
Q

Mussels fall under which category?

A

bivalve molluscs

92
Q

Frozen tuna which will eventually be eaten in its raw state in Japan?

93
Q

Salted Fish will take up moisture from the surroundings air if relative humidity rises above?

94
Q

Cold Smoking?

A

Up to 30 degrees

95
Q

Hot smoking?

A

upto 70 degree

96
Q

Dry Salt salt conc?

A

35-40%

except fatty fishes

97
Q

Wet salting salt conc?

98
Q

Is gelatin a fish by-product?

99
Q

Isinglass is an example of?

A

Fish by-product

For clarification of wines

100
Q

World Fishery day?

101
Q

Top Fish Producing state of india?

102
Q

Bombay is a popular type of?

103
Q

Milk fish (Chanos Chanos) is

A

The most ideal finfishes for farming in coastal areas

104
Q

Theme of Sagar Prikrama?

A

Kranti se Shanti

by Ministry of FIsheries

105
Q

Central Institute of Fisheries Education is located in?

A

Mumbai, Maha

106
Q

Central Marine Fisheries Research Institute is located in?

A

Kochi, Kerala

107
Q

In composite fish culture Fish Fingerlings of 50-100g size should be used for stocking @ ____ nos per ha

108
Q

Scientific name of pink prawn

A

Pandalus borealis

109
Q

A combination of many existing preservation techniques in order to establish a series of preservation factors that no microorganisms will be able to overcome and spoil the fish

A

Hurdle Technology

110
Q

Carnivorous fish?

111
Q

Scientific name of AMUR CARP

A

Cyprinus rubrofuscus

Carp with least environment impact

112
Q

Biofloc Technology is ost commonly used in farming of?

A

Shrimp, telapia or bottom feeders

requires an optimum temp

113
Q

Biofloc technique involves maintaining a high C:N ratio to encourage ____ bact growth for water purification

A

Heterotrophic bacteria

to feed on waste (autotrophic generates own energy - no purification)

114
Q

In biofloc technolofy presence of light is ____ feature for microbial aggregates

A

not an essential feature

115
Q

Which type of fish have RAM ventilation for respiration?

A

Active fast fishes

Tuna & Shark

116
Q

ICAR - CIFE is located in?

Central Institute of Fishery Education

117
Q

App launched by CIFE to help aqua farmers formulate nutritious feed?

A

Aquafeed Optima

NABARD Agri 2025 (26 decks)

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