Aquaculture

Some examples of aquaculture include raising catfish in freshwater ponds, growing cultured pearls, and farming salmon in ocean net-pens.

Benefits

Aquaculture has been one of the fastest growing segments of global food production in recent years. It has been hailed as an answer to the problems of declining wild fish stocks due to overfishing and other causes.

Problems

There has been (2003) considerable debate on the merits of aquaculture - or "fish farming", as it is often called. In countries like the U.K., Canada and Norway, salmon- and trout-farming are one of the fastest-growing forms of agriculture. As these farms expand, they have been affecting the quality of wild fish, especially salmon. Organic fish farming is seen by some as a way of maintaining environmental and fish quality without losing the opportunities this form of farming offers.

Other problems with aquaculture include the potential for increasing the spread of unwanted invasive species, as farmed species are often not native to the area in which they are farmed. When these species escape, they often prove more resiliant than native species and take over ecosystems. Another possibility is the spread of introduced parasites and pests.

See also fishery

Reference

• Naylor, R.L., S.L. Williams, and D.R. Strong. 2001. Aquaculture -- A Gateway For Exotic Species. Science. 294: 1655-6.

External link

• Organic Aquaculture: Articles and references on the merits and otherwise of farming fish organically.

• Aquaculture Knowledge Environment: A searchable online library of government and United Nations documents covering nearly every aspect of aquaculture from pond construction to international codes of conduct.

Referenced By