Sustainable fisheries (AQA GCSE Biology): Flashcards
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Definition of sustainable fishery
Definition of sustainable fishery
Catch fish today without harming future fish populations
Goal of sustainable fisheries
Goal of sustainable fisheries
Keep fish populations stable over time
Main issue with catching too many large fish
Main issue with catching too many large fish
Not enough left to breed and create next generation
Step 1 of overfishing cycle
Step 1 of overfishing cycle
Fishermen catch too many large, breeding fish
Final step in overfishing cycle
Final step in overfishing cycle
Fishery collapses - not enough fish left
Short-term effect of overfishing
Short-term effect of overfishing
Plenty of fish available to catch and sell
Long-term effect of overfishing
Long-term effect of overfishing
Few fish or no fish left in the area
What is a fishing quota?
What is a fishing quota?
Limit on how many fish fishermen can catch
How fishing quotas help fish stocks
How fishing quotas help fish stocks
Allow fish stocks to increase by preventing overfishing
What are mesh size limits?
What are mesh size limits?
Nets must have holes at least a certain size
How mesh size limits help conservation
How mesh size limits help conservation
Small fish escape, survive and reproduce
Seasonal fishing restriction example
Seasonal fishing restriction example
Banning fishing during breeding seasons