Due to international debt and the high price of oil, developing nations export most of their fish catch to the developed countries even though local populations may suffer protein deficiency. Seventy percent of the world's protein is utilized in developed countries. Rocky ground with clay soil is perfect. Aquaculture can be efficiently integrated into traditional agriculture. Aquaculture wastewater provides irrigation and fertilizer for row crops.
Agricultural waste fertilizes the pond and feeds the fish.
Aquaculture as currently practiced in this country is limited even though highly productive and cost-effective at present. Catfish ponds and trout raceways are comparable to livestock feed lots. Such feedlots are fish consumers rather than fish producers. About 1.5 lb of fish is used to produce 1.0 lb. Develop both methods and markets for herbivorous species.