In the context of reducing fishing impacts on vulnerable species, it is a device incorporated into, or deployed in association with, fishing gear, and designed to reduce the risk or rate of interaction with the gear, or to reduce the likelihood of injury or mortality of animals that do encounter the gear. Mitigation devices are most often used to reduce interaction with, or injury to, seabirds, marine mammals and turtles. Mitigation devices may be designed to reduce actual interaction with the gear (such as trawl warps and longlines at the stern of a vessel), or to facilitate escape by animals that do enter the gear (such as trawl nets underwater). See also Bird baffler, Bird sprayer, Warp deflector.