FISH FARMING B3 AQA GCSE
- Created by: emilyy_cole
- Created on: 06-06-16 18:08
View mindmap
- FISH FARMING
- OVER FISHING
- over fishing is a problem when more fish are being caught than the remaining can reproduce
- this means the population of fish will decrease
- over fishing is a problem when more fish are being caught than the remaining can reproduce
- FISH FARMING
- this is a solution to the problem of over fishing
- in fish farming, fish are kept in cages. this confines space. to reduce competition fishes of different sexes are separated along with age
- ADVANTAGES
- water quality is controlled
- the cages protect the fish against predators
- frequent feeding allows for rapid growth
- confined spaces means that the fish move less so they use less energy on respiration
- other competing species are kept out
- DISADVANTAGES
- to maintain sterile water, pesticides and antibiotics need to be used to control disease. this could lead to antibiotic resistance
- large amounts of waste produced by fish has to be removed often this may damage the ecosystem in the area
- greater risk of disease as fish may be closely related (selective breeding) and they also live close together.
- OVER FISHING
Similar Biology resources:
Teacher recommended
Comments
No comments have yet been made