Food Production Fish Farming Flashcards
(10 cards)
advantages of fish farming (4)
- ability to selectively breed fish ensuring high quality and growth
- ability to protect against predators
- ability to control water quantity
- ability to control feeding for rapid growth
what’s the disadvantage of fish farming
its Labour intense and Costly
methods used to farm large numbers of fish to provide a source of protein (7)
- maintenance of water quality
- control of intraspecific predation
- control of interspecific predation
- control of disease
- removal of waste products
- quality and frequency of fencing
- selective breeding
maintenance of water quality
it’s filtered to remove waste and harmful bacteria, preventing disease and cleaned to maintain high oxygen levels for aerobic respiration
control fo INTRAspecific predation
(predation with same species), fish are separated by size and age
control of interspecific predation
(predation between different species)
different species of fish are separated by fences and nets and tanks to stop fights
control of disease
antibiotics are given to fish to prevent disease
removal of waste products
water is filtered to remove waste products
quality & frequency of feeding
fish fed food thats high in nutrients frequently but in small amounts so they don’t overeat but still grow fast
selective breeding
separated by gender so selective breeding can be used to reproduce only those with desired characteristics
