Pond aquaculture in China is trending further from traditional carp polyculture toward monoculture of higher-value fish species.
Traditional culture of native carps in Bangladesh has been diversified by the polyculture of introduced carps with tilapia and catfish. Production is becoming increasingly intensive, with an accompanying need for greater feed and other inputs. The culture of Thai pangas
The worldwide adoption of ecologically, socially and economically sound systems based on a series of principles of organic agriculture is exemplary if unrealistic.