Aquaculture mind map
- Created by: Orion_Moore
- Created on: 19-04-14 16:25
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- Aquaculture
- Definition
- Farming of aquatic species under controlled conditions
- Extensive
- Organisms reared in natural situation / environment
- Environmental factors not controlled
- Lower stock density
- Lower food input required
- Organisms reared in natural situation / environment
- Intensive
- Organisms kept in enclosures
- Control environmental factors
- High stock density
- Requires high food / antibiotic input
- Organisms kept in enclosures
- Extensive
- Farming of aquatic species under controlled conditions
- Examples
- Grouper
- Tanks / net cages
- Controlled diet (pellets)
- Tuna
- Net pens
- Fed on bait fish
- Shrimp
- Ponds / tanks
- Diet of algae, zooplankton,and specialized feed
- Giant clam
- Wire mesh cages raised off of sea floor
- Obtain most nutrients from symbiotic zooxanthellae
- Grouper
- Factors necessary for sustainability
- Waste removal (to prevent pollution)
- Monitoring (to prevent overcrowding)
- Adequate food supply
- Oxygenation method
- Protection from predators (e.g. nets)
- Labor force (for maintenance)
- Access to market (i.e. transport links)
- Market demand
- Potential impact
- Positive
- Increased food supply
- Increased employment (in aquaculture industry)
- Could restore populations of endangered species
- Negative
- Fall in price of fish
- Lower fishery income
- Unemployment (in fisheries)
- Escape of reared fish into wild
- Loss of habitats / wild species
- Decreased biodiversity
- Effect on food chain
- Loss of habitats / wild species
- Fall in price of fish
- Positive
- Definition
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