Latrines & Farmed Fish

The picture above is from the Food and Agriculture Organization (FAO) and shows a latrine situated over a fish pond, in China. The addition of manure and other waste materials like sewage, is a common practice in aquaculture - see Auburn University's online site about it with pictures.

The FAO recommends in this instructional guide to would-be freshwater fish farmers recommends that latrines be located at last 10 feet from fish ponds to avoid the fish being unsafe to eat.

the Chinese and Vietnamese are using latrine ponds full of human and other wastes to raise fish which they sell to North American and other markets for export.

Aplastic-anemia.org has this information about imported fish: "According to the Catfish Institute, most of the catfish from Vietnam are raised in floating cages in the Mekong River or in "latrine ponds" in provinces along the river. Slow moving currents during the dry season adversely affect cage-raised fish and the Mekong River is subject to pesticide contamination... "Latrine ponds are depressions that employ the Chinese system of channeling human and other waste into ponds used to raise fish."