Flashcards in Fish Farming (T5) Deck (9):
What are the most common fish farmed?
- sea bream
What does 1/4 of all fish farmed get used for?
In some fish farms, what three variables are often controlled?
- diet (quality and frequency)
What is 'inter-specific competition' and how is it controlled in fish farms?
Competition between different species of fish.
Fish are kept in separate tanks to prevent this.
On fish farms, how is disease limited?
Fish are kept in sterile water.
Fish are also given antibiotics, however the concern here is whether the antibiotics are completely decayed by the time the fish is consumed by humans.
What is 'intra-specific competition' and how is this controlled on fish farms?
Competition between fish of the same species.
Fish of different genders are kept apart (unless breeding) and also fish of different ages.
Pesticides are used to kill parasites, often from animal faeces - what is the concern here?
The pesticides can be harmful to other non-harmful / helpful bacteria.
Give an example of selective breeding in fish farming..
Only the biggest and most healthy fish are allowed to breed.