Since 2000, US$ 2.0-2.7 billion has been invested in feedstock cultivation for biofuel in 16 forest-rich countries, mostly in oil palm and sugarcane. An additional US$ 5.7-6.7 billion has been invested in biofuel production, especially sugar-based ethanol.

There are many options for enhancing food production from fish in managed aquatic systems.The most appropriate technology, however, will vary from place to place, and the conditions under which one technology is prefered over another are still not well defined.