
Fish farms and poultry farms
Fish farming or pisciculture involves raising fish commercially in tanks or enclosures such as fish ponds, 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. Worldwide, the most important fish species produced in fish farming are carp, catfish, salmon, and tilapia.
Demand is increasing for fish and fish protein, which has resulted in widespread overfishing in wild fisheries. As of 2016, more than 50% of seafood was produced by aquaculture. In the last three decades, aquaculture has been the main driver of the increase in fisheries and aquaculture production, with an average growth of 5.3 per cent per year in the period 2000–2018, reaching a record 82.1 million tonnes in 2018.
