fish farming

act of raising fish in tanks or closed areas for commercial purposes generally for food)

Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. It involves raising fish commercially in tanks or enclosures, usually for food. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally referred to as a fish hatchery. Fish species raised by fish farms include salmon, catfish, tilapia, cod, carp, trout and others.
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Usually, freshwater commercial aquaculture; catfish farms are an example.
  

fish-farming /'fiʃ,fɑ:miɳ/
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