Why fish stocks must be protected
Definition
Fishing quota
A limit on the amount of a type of fish that boats are allowed to catch, used to protect fish stocks.
- Fishing on a large scale has reduced many fish stocks, such as cod in the North Sea.
- If too many fish are caught, there are not enough left to breed and replace them.
- Fish stocks must be kept above a certain level so the population can recover.
Key Idea
Sustainable fishing catches fish no faster than they can breed and replace themselves.
Fishing quotas and net size
- Fishing quotas set a limit on the amount of a type of fish that boats are allowed to catch.
- Controlling the net mesh size lets young fish escape, so they can grow and breed before being caught.
- A larger mesh also lets non-target species escape, protecting the wider community.
Common Mistake
- Do not just say we should catch fewer fish.
- Quotas and net size both work by leaving enough fish, especially young ones, to breed.
Balancing needs
- These controls protect fish stocks for the future but can reduce catches and incomes now.
- Sustainable fishing tries to balance protecting the fish with the needs of the fishing industry.
Self review
- Why do fish stocks fall if too many fish are caught?
- What is a fishing quota?
- How does a larger net mesh size help protect fish stocks?
- Why can sustainable fishing be unpopular with the fishing industry?
