Shrimp is one of the least sustainable types of seafood there is. Shrimp is very difficult and environmentally harmful to fish for, many shrimp producers have turned to shrimp farming. However, the health impacts of shrimp farming are just as horrible. In India, shrimp farming is horrific. “The shrimp pond preparation begins with urea, superphosphate, and diesel, then progresses to the use of piscicides (fish-killing chemicals like chlorine and rotenone), pesticides and antibiotics (including some that are banned in the U.S.) and ends by treating the shrimp with sodium tripolyphosphate (a suspected neurotoxicant), Borax, and occasionally caustic soda.” (source: Jill Richardson)
But if you decide that eating something that chemically is too much for you, you should learn about the environmental impacts of shrimp farming. Since shrimp do not swim in school like many fish do, the only way to fish for them is with a method called bottom trawling. Bottom trawling is basically a technique where the fisherman drag a net across the seafloor. “Thus, many creatures end up mistakenly caught and thrown overboard dead or dying, including endangered fish and even vulnerable deep-sea corals which can live for several hundred years.” (source: Marine Conservation Institution)