This set of Marine Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Aquaculture and Mariculture – Set 2”.
1. Integrated Multi-trophic Aquaculture (IMTA) is involved only in the culture of fed-species.
a) True
b) False
View Answer
Explanation: IMTA is used for the culture of fed-species as well as non-fed species alongside the culture of seaweeds that can convert inorganic nutrients to organic nutrients. The waste products from the culture of one species are given as input for the culture of other species, resulting in a balanced feed ecology.
2. Which is not true for cage and pen culture?
a) No use of land
b) Current should be low
c) Culture of clams
d) Culture of carnivorous fish
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Explanation: Pen and cage cultures are popular in marine coastal areas and those of inland waters where the current is low (less than 1 m/s). Culture of carnivorous fish is not practiced using pen and cages.
3. Monoculture, polyculture and IMTA are examples of _______________
a) species selection
b) species combination
c) extensive culture
d) intensive culture
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Explanation: Monoculture – culture of one species, polyculture – culture of more than one species, and Integrated Multi-trophic Aquaculture are the examples of species combination as an aquaculture system.
4. Which is not an example of organic extractive aquaculture species?
a) Carnivorous fish
b) Herbivorous fish
c) Suspension feeders
d) Deposit feeders
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Explanation: Fed-aquaculture species (such as carnivorous fish), organic extractive species (options b, c, d) and inorganic extractive species (such as seaweeds) are used in conjunction in the Integrated Multi-trophic Aquaculture.
5. Which is a method used to restore depleted fish?
a) Sea ranching
b) Application of fertilizers
c) Hormonal injections
d) Cannulation
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Explanation: Sea ranching is a method to replenish the depleted feral fish stocks. After obtaining rights over an area of optimal habitat for ranching, broodstock are collected and bred in a hatchery and juveniles are released in the ranching area.
6. Macrobrachium rosenbergii is a _______________
a) prawn
b) shrimp
c) turtle
d) catfish
View Answer
Explanation: Macrobrachium rosenbergii is the scientific name of giant freshwater prawn. It is an important aquaculture species of India, poor broodstock management has led to the inbred lines in Indian coastal waters.
7. Which is the natural host of Infectious Hypodermal Haemotopoietic Necrosis Virus?
a) Rainbow trout
b) Penaeus indicus
c) Penaeus vannamei
d) Penaeus monodon
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Explanation: Penaeus vannamei is the natural host of IHHNV that causes runt deformity syndrome. It causes reduced growth rate, cuticle deformities of the rostrum, anterior appendages and other parts.
8. The monodon slow growth syndrome is characterized by _______________
a) bright yellow marks
b) white marks
c) brittle uropods
d) absence of antennae
View Answer
Explanation: The monodon slow growth syndrome is caused by the Laem Singh Virus targeting the aquaculture species Penaeus monodon. The disease is characterized by retinopathy, brittle antennae and bright yellow markings on the abdomen.
Sanfoundry Global Education & Learning Series – Marine Biotechnology.
To practice all areas of Marine Biotechnology, here is complete set of 1000+ Multiple Choice Questions and Answers.
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