Nutritional requirements for the California Sea Otter have been evaluated based on an examination of dietary needs established for captive otters and a comparison to observations of wild otter consumption. The study is based on inputs from 6 captive otter facilities and observations along the coastal regions of California and Alaska. The study concludes that additional data is needed to complete the assessment but that most facilities are providing more food to otters than appears to be necessary for captive otter maintenance.