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Fish farming

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 and others.

Basically, there are two kinds of aquaculture: extensive aquaculture based on local photosynthetical production and intensive aquaculture, in which the fishes are fed with external food supply.

Note:   The above text is excerpted from the Wikipedia article "Fish farming", which has been released under the GNU Free Documentation License.
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September 4, 2015

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