Fish Farming Techniques - JSS3 Agricultural Science Past Questions and Answers - page 2
What is one benefit of recirculating systems in aquaculture?
They require constant water changes
They reduce water usage
They use natural ponds for fish cultivation
They increase environmental impact
Which of the following is a fish species known for its hardiness in aquaculture?
Salmon
Tilapia
Catfish
Shrimp
What is the goal of selective breeding in aquaculture?
To reduce fish populations
To improve undesirable traits
To enhance genetic diversity
To enhance desirable traits
What is one method used for fish storage in aquaculture?
Sun-drying
Freezing
Canning
Pickling
Which type of aquaculture system involves cages submerged in open water bodies?
Pond aquaculture
Recirculating systems
Cage culture
Aquaponics
What is aquaculture?
Aquaculture, or fish farming, involves the controlled cultivation of aquatic organisms in natural or artificial environments. It encompasses various species such as finfish, shellfish, and aquatic plants, providing a sustainable alternative to wild fisheries to meet the growing demand for seafood.
What are the different fish farming systems used in aquaculture?
Fish farming systems in aquaculture include pond aquaculture, which utilises natural or excavated ponds; cage culture, involving submerged cages in open water bodies; and recirculating systems, which are indoor or land-based systems with controlled water recirculation.
Why is pond aquaculture advantageous?
Pond aquaculture offers advantages such as utilising natural or excavated ponds for fish cultivation, thereby minimising construction costs. It provides a natural environment for fish growth and allows for the integration of various species and farming practices.
Which fish species is known for its fast growth and adaptability in aquaculture?
Tilapia is known for its rapid growth rates and adaptability to various farming systems, making it a popular choice in aquaculture. It can thrive in different environmental conditions, contributing to its widespread cultivation globally.
What is the primary advantage of cage culture in aquaculture?
Cage culture allows fish to be contained and fed in submerged cages in open water bodies, reducing land requirements and minimising environmental impact. It also facilitates efficient feeding and monitoring of fish health, contributing to higher productivity in aquaculture.