Rectal swabs were collected from 90 Northern fur seal (Callorhinus ursinus) and 50 California sea lion (Zalophus californianus) pups on San Miguel Island for Salmonella screening. Three serotypes (newport, heidelberg, and oranienburg) were recovered from 33% of the fur seals and 40% of the sea lions.
Biosciences Department, Naval Ocean Systems Center, P.O. Box 997, Kailua, Hawaii 96734, USA.
Water Utilities Department, City of San Diego, San Diego, California 92101, USA.
Biology Department, California State College, Hayward, California 94542, USA.