Daily Activity of Sea Otter off the Monterey Peninsula, California

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Abstract
During the period July 24-Sept. 21, 1974 sea otter (Enhydra lutris) activity was sampled along a 5.5 km stretch of coastline in Monterey County, California [USA]. Sixty-five 1 h samples covering a 15 h day were completed during the study period. Sea otter behavior was classed as resting, foraging, interacting, grooming or swimming. There were 2 modes of foraging activity, at 0700 and at 1700 h. Preliminary observations suggest a 3rd mode of foraging activity at 2400 h. Principal otter activities were resting and foraging. The sample data also revealed the relative importance of various sectors within the study area. Male animals appeared to move to female areas to forage.

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