2/18/2012

5.9- Fish farming

Explain the methods which are used to farm large numbers of fish to provide a source of protein, including maintenance of water quality, control of intra specific and inter specific predation, control of disease, removal of waste products, quality and frequency of feeding and the use of selective breeding
Fish are an attractive product for farmers as they have low fat and high protein. They are efficient at turning their nutrient into fish mass. 
  • Fish farming allow us to control the quality of the water, predators and reduce pests/diseases
  • By controlling these factors, the yield of fish will increase
  • High density of fish--> possibility of fast transmission of disease, pests
    • Farmers use antibiotics in some cases which is of concern to human health
    • Pesticides might also be used--> harmful to humans

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