Unlike salmon, tuna has not yet been successfully farmed - that is, raised in captivity from egg to maturity - though Mr. Charat predicts it will happen one day.

One of Turks and Caicos's marine species is being successfully farmed.

A study is being conducted by the Instituto de Biologia, UNAM, to solve the over-exploitation problem and to determine if the iguanas can be successfully farmed as a food source similar to the Green Iguana and the closely related Ctenosaura similis.

The science of aquaculture is still on a steep learning curve, and many species cannot yet be successfully farmed.

The expedition wanted to establish if it was possible to acquire arable areas in Natal that could have been successfully farmed.

Kinki University of Japan first successfully farmed already-hatched bluefin tuna in 1979.

At the time of its development in the late 1980s by Sikh spiritual leader Baba Virsa Singh Ji (Babaji), no one believed that such an area could be farmed successfully.

He settled in northern Fife and successfully farmed.

The only luxury food products that cost more are caviar and the rarer white truffle, which no one has successfully farmed.