Most information comes from Asian countries, particularly the Philippines, Indonesia, and Japan, where traditional rice farming methods have been refined over centuries.
Rice is the economically important crop.
The addition of fish culture to rice production is an additional management consideration for farmers. In many cases, there may not be sufficient economic justification for this extra management. Fish culture in rice fields may be practiced at several management levels. In its most simple form, fish stocks are not managed. Wild fish enter the paddy during flooding and are captured at the end of the rice growing season.