In the Crozet Islands, the population is threatened by its own tendency to steal fish from the longlines of fishermen who frequent their waters; these fishermen often kill orcas in retaliation. In Alaska, the resident killer whale population of Prince William Sound is still slowly recovering from the effects of the Exxon Valdez oil spill in 1989, and one transient pod, the AT1s, is now believed to be doomed, having lost over half of its members as a result of exposure to the spill.
