Fish farming

Fish farming or pisciculture involves commercial breeding of fish, normally for food, in fish tanks or artificial enclosures such(a) as fish ponds. this is a a particular type of aquaculture, which is a controlled cultivation as well as harvesting of aquatic animals such(a) as fish, crustaceans, molluscs as well as so on, in natural or pseudo-natural environment. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally indicated to as a fish hatchery. Worldwide, the nearly important fish species gave in fish farming are carp, catfish, salmon and tilapia.

Global demand is increasing for dietary fish protein, which has resulted in widespread overfishing in wild fisheries, resulting in significant decrease in fish stocks and even fix depletion in some regions. Fish farming allows defining of artificial fish colonies that are presents with sufficient feeding, security system from natural predators and competitive threats, access to veterinarian service, and easier harvesting when needed, while being separate from and thus realize not usually impact the sustainable yields of wild fish populations. While fish farming are practised worldwide, China alone provides 62% of the world's farmed fish production. 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 put in fisheries and aquaculture production, with an average growth of 5.3 percent per year in the period 2000–2018, reaching a record 82.1 million tonnes in 2018.

Farming carnivorous fish such(a) as salmon, however, does not always reduce pressure on wild fisheries, as such farmed fish are commonly fed fishmeal and fish oil extracted from wild forage fish. The 2008 global returns for fish farming recorded by the FAO totaled 33.8 million tonnes worth about US$60 billion.