Tuesday, February 21, 2012

5.9 - Fish Farming



Fish are an attractive product to farmers as they: 
- have low fat and high protein 
- are efficient at turning their nutrient into fish mass 


Fish Farming Advantages: 
- allow the control of the quality of water - clean 
- can control predators 
- Can produce and control pests 
- Can control diseases 
By controlling all these factors it contributes to an increase in yield of fish. 


However, where there is a high density of fish, the possibility of transmission of disease increases. 
- This has caused fish farmers to begin using antibiotics
- The abundance of fish within the fish farm makes pests common and so some farmers have begun to use pesticides 


Both these contribute to the cause of concern for humans.  



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