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Principles of Aquaculture

Aquaculture

A set of knowledge-based questions regarding aquaculture systems, species, and environmental management.

biology agriculture sustainability

15 Questions Medium Ages 14+ Oct 15, 2026

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About this Study Set

This study set covers Aquaculture through 15 practice questions. A set of knowledge-based questions regarding aquaculture systems, species, and environmental management. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 What is the primary purpose of a recirculating aquaculture system (RAS)?

A To increase water temperature manually
B To recycle and clean water through mechanical and biological filtration
C To allow fish to migrate between freshwater and saltwater
D To eliminate the need for fish feed

2 Which term refers to the cultivation of aquatic plants like seaweed and kelp?

A Algaculture
B Pisciculture
C Mariculture
D Crustacean farming

3 What is the role of a biofilter in an aquaculture system?

A To add oxygen to the water
B To convert toxic ammonia into less harmful nitrates
C To heat the water to optimal temperatures
D To filter out large solid waste particles

4 Which aquatic species is most commonly farmed in 'cage culture' systems in open water?

A Oysters
B Atlantic Salmon
C Freshwater Prawns
D Tilapia

5 What is the primary goal of integrated multi-trophic aquaculture (IMTA)?

A To farm only one species to maximize yield
B To use waste products from one species as food for another
C To increase the use of synthetic fertilizers
D To farm only freshwater species in saltwater

6 What is 'fecundity' in the context of aquaculture?

A The survival rate of juvenile fish
B The total weight of the harvest
C The potential reproductive capacity of an organism
D The nutritional content of fish feed

7 Which parameter is typically measured to determine the amount of oxygen available for fish respiration?

A pH level
B Dissolved oxygen
C Salinity
D Turbidity

8 In aquaculture, what does FCR stand for?

A Fish Conversion Ratio
B Feed Conversion Ratio
C Farm Capacity Rating
D Freshwater Control Regulation

9 What is the main environmental risk associated with the escape of farmed fish into natural ecosystems?

A Increased oxygen levels
B Genetic competition with wild populations
C Reduction in ocean salinity
D Decrease in natural water temperature

10 Which aquaculture method involves farming organisms in land-based ponds?

A Cage culture
B Longline culture
C Pond culture
D Offshore ranching

11 Why is a high stocking density in aquaculture potentially problematic?

A It reduces the amount of light in the water
B It increases the risk of disease transmission
C It causes the water to become too basic
D It makes the fish grow too slowly

12 What is the main purpose of adding aeration to an aquaculture pond?

A To regulate the pH level
B To increase the concentration of dissolved oxygen
C To kill harmful parasites
D To speed up the growth of algae

13 Which of these is considered an omnivorous fish species often used in aquaculture?

A Shark
B Tilapia
C Swordfish
D Barracuda

14 What is the primary function of a sedimentation tank in an aquaculture facility?

A To sterilize water with UV light
B To remove suspended solid waste via gravity
C To increase water flow velocity
D To monitor fish growth rates

15 Which of the following is a key advantage of farming bivalve mollusks like oysters and mussels?

A They do not require external feed as they are filter feeders
B They can only grow in freshwater
C They are the fastest growing fish species
D They do not require water to survive

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