Unit 4: Aquaculture - Management of Marine Production Systems

  • Created by: rosieevie
  • Created on: 24-05-15 16:12
View mindmap
  • Management of Marine Production Systems
    • Catch Quotas
      • Limits on total weight of fish that can be landed
      • Good for fish found in shoals of single species
      • Total quotas divided up with individual quotas for each fishing boat
      • Fish may already be dead and have to be thrown back if over quota
    • Minimum Catchable Size
      • Less juvenile fish caught
      • Size of net mesh controls the minimum size of fish caught
    • Fishing Effort Limits
      • Sets limits on size of nets, boats or engines and number of days spent fishing
      • Fishing fleet too large - compensation scheme = fishermen paid to sell boats and stop fishing
    • No-Take Zones
      • Completely bans part of an area - breeding populations can develop
      • Surplus young produced will spread out and boost fishable population
    • Closed Seasons
      • Bans on certain times of year for recovery e.g. breeding seasons
    • Protected Individuals
      • Individuals known to be good breeding animals protected
      • Marked so if they are caught again they will be released
    • Population Seeding
      • Young fish raised in captivity and released when they have a better chance of survival (low mortality rate)


No comments have yet been made

Similar Environmental Science/Studies resources:

See all Environmental Science/Studies resources »See all Aquaculture resources »