Off the coast of Alaska an anthropogenic event prevailed known as the Exxon Valdez oil spill (Monson et al. 2000). The horrendous event occurred on 24th of March in 1989 (Monson et al. 2000). The vessel ran upon the Bligh Reef which is located near Prince William Sound commonly referred to as PWS (Monson et al. 2000). PWS is where most of the research on sea otters after the spill was carried out. Around 42 million liters of Prudhoe Bay crude oil was poured in the Alaskan waters (Monson et al. 2000). Lutra canadenis is a river otter that is located in Prince William Sound. The river otter occurred negative effects by the oil spill. Numerous studies were carried out to see the impacts of the oil spill on the river otters (Duffy et al. 1994).
