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 intraspecific and interspecific predation, control of disease, removal of waste product, quality of frequency of feeding and the use of selective breeding.
fish is an attractive product for farmers:
-fish has low fat and high protein
-fish is efficient in turning nutrients into fish mass.
PROS-
-fish farming will allow us to control the quality of water (clean)
-control predators.
-reduce pests and diseases.
-all of these contribute in an increase in yield of fish.
CONS-
-if high density- transmission of diseases. so some farmers use antibiotics- bad for human health.
-abundance of fish makes pests common and therefore some farmers will use pesticides- also a concern for humans.
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