Aquaculture Production

Aquaculture is the fastest growing agro-industry all seafood consumed currently comes from aquaculture. Aquaculture must increase production three-fold in the next 20 years to fill the gap between the increasing demand and declining supply of fishery products.
 
Aquaculture production systems are
1.extensive
2. Semi-intensive
3. Intensive
 
1. Extensive: Fish have been farmed extensively, for many centuries, by nurturing a natural environment with little or no inputs.
2. Semi-intensive: The end of the 20th century saw the development of intensive fish farming with a greater use of inputs with high stocking densities welfare.
 
The highest aquaculture production tonnages are  mainly three families they are carps(61%),tilapias(9%) and salmonids(6%) of total global farmed fish production tonnage.  Carp are often farmed with different species of carp stocked together by  polyculture systems to  exploit the different ecological niches of the pond ecosystem.Carp and tilapia farming can beextensive
 
3. Intensive :salmonids farming can be (mostly Atlantic salmon and rainbow trout) is generally intensive.Aquaculture production is generally defined as the cultivation of the fishes and crustaceans taken from marine and sea tanks. Aquaculture playing major role in many emerging economies
 
Production by country
Norway is the highest production with more than 650 thousand tonnes in 2005, UK produced 172 thousand tonnes in 2005, and Turkey’s production of nearly 120 thousand tonnes Norway increased its production by nearly 29%.  Turkey increased its output from 2001 to 2005 by 77% Turkish production consists mainly of trout, sea bream and sea bass.