BRAINCAKEFish Farming and Aquaculture
Aquaculture is the farming of aquatic organisms such as fish, shellfish and seaweed. Fish farming usually means rearing fish in tanks, ponds or net cages in lakes and the sea, for example salmon in Scottish sea lochs and carp or tilapia in ponds. About half of the fish eaten worldwide now comes from aquaculture.
Advantages:
• it can reduce fishing pressure on wild stocks;
• production is reliable and controlled, with fish fed a high-protein diet and harvested at the best size;
• fish convert food into biomass efficiently, because as ectotherms they use little energy keeping warm and water supports their weight;
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More in Human Influence on Ecosystems
- Farming: Depletion of Resources
- Fishing: Depletion of Resources
- Anthropogenic Changes in the Ocean
- Problems with Conservation
- Endangered Species
- Extinction
- Human Causes of Extinction
- Conserving Biodiversity
All 29 lessons in Human Influence on Ecosystems · All Edexcel A-level Biology topics