According to the article “Search for the Missing Sea Otters: An Ecological Detective Story” by Mary E. Allen and Mark L. Kuhlmann, the sea otter population has been decreasing at a rapid pace since the 1990’s in Aleutian, Alaska. This is demonstrated by article “What Could be the Cause of Decreasing Otter Numbers” which states that in 1997, the decline of the sea otter population had increased to about 90%. They hypothesize that the decrease in the sea otter population has been caused by their predator, the killer whale because the sea otter’s bodies do not come ashore. The evidence suggests that killer whales are eating the sea otters because in the text “What Predator Could be Causing the Large Decrease in Otter Numbers”
