Untitled Deck Flashcards
(16 cards)
Why is fish farming important?
Fish is a good source of high quality protein
Fish farming helps meet the increasing demand for fish as a food supply due to the growing world population.
What is the relationship between fish caught by ships and fish stocks?
The amount of fish caught by ships has increased, while the Earth’s stock of many fish has decreased.
What are the main environments where fish are farmed?
Fish are kept in densely stocked tanks or enclosures in rivers or lakes.
What factors are monitored to control water quality in fish farming?
Temperature, oxygen levels, and water clarity.
How is the diet of farmed fish controlled?
Fish are fed small amounts regularly to prevent waste.
What is the purpose of enclosing fish in cages?
To protect them against predators.
What are pesticides used for in fish farming?
To kill parasites.
What is the role of antibiotics in fish farming?
To reduce infection.
Why are fish separated by size in farming?
To prevent intraspecific competition.
What is selective breeding in fish farming used for?
To improve the quality of the fish.
What is done with waste products in fish farming?
Waste products of the fish are removed to prevent decomposition and eutrophication.
What environmental problem can fish farms cause?
Pollution from food pellets and animals’ faeces contaminating water.
What is the effect of pesticides on fish farming?
They could be harmful to non-harmful species of invertebrates.
How does fish farming impact wild fish stocks?
It has a negative effect as some farmed fish need to be fed with pellets made from other fish.
Fill in the blank: Fish farming is important because it meets the need for _______.
fish as a food supply.
True or False: Fish farming has no impact on the environment.
False.
