Transactions of the Western Section of the Wildlife Society

1978, Volume 14


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Year1978
Volume14
TitleFood Habits of the River Otter in Suisun Marsh, Central California
Author(s)William E. Grenfell
ArticleLink to PDF

Abstract:
The food habits of the river otter (Lutra canadensis) were studied in Suisun Marsh, Solano County, California. One hundred eighteen scats were analyzed by frequency of occurrence of food items for a one year period, and seasonal feeding patterns were determined. Major foods, in their order of importance, were crayfish, waterfowl, and fish. Crayfish consumption was high and constant throughout the year, but the take of fish and waterfowl varied according to season. Waterfowl consumption was proportional to waterfowl density. Some intake of plants was also noted.


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