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Folders: ROOT > ScienceBase Catalog > USGS Western Ecological Research Center > Western Ecological Research Center Approved Data Releases > Annual California Sea Otter Census - 2016 Spring Census Summary ( Show all descendants )

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Annual California Sea Otter Census: 2016 Extra limit observations shapefile The GIS shapefile "Extra limit observations 2016" is a point layer representing the locations of sea otter sightings that fall outside the officially recognized range of the southern sea otter (Enhydra lutris nereis) in mainland California. These data were collected during the spring 2016 range-wide census. The USGS range-wide sea otter census has been undertaken twice a year since 1982, once in May and once in October, using consistent methodology involving both ground-based and aerial-based counts. The spring census is considered more accurate than the fall count, and provides the primary basis for gauging population trends by State and Federal management agencies. Sea otter distribution in California (the mainland... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coast, Coast, Southern California Coast, aerial counts, All tags... distribution, range, sea otter census, sea otters, shore counts, Fewer tags