Usually, shrimp is caught by bottom trawling, which damages the seafloor habitat and has high levels of bycatch: for every pound of shrimp caught, 3-15 lbs. of other animals are accidentally killed and thrown away. And shrimp farms can destroy mangroves and pollute coastal habitats with runoff and unhealthy chemicals. Seafood guides recommend avoiding most imported shrimp, and opting for more sustainable options such as wild-caught pink shrimp from Oregon or shrimp farmed in the US in recirculating systems.