Shrimp aquaculture requires large quantities of water. To raise one metric ton of shrimp takes between 50 million and 60 million litres of water, about half of it freshwater. This is a serious drain in many regions where freshwater is scarce.
Each kilogram of shrimp produced generates about 15,000 litres of effluent, with residues of toxic chemicals. This chemical stew is released untreated into the groundwater, contaminating the drinking water of local communities.
Brazilian shrimp fishing harms turtles.