35 datasets found
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Federal
Annual California Sea Otter Census: 2019 Census Summary Shapefile
Department of the Interior —
The GIS shapefile Census_sum_2019 provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
Annual California Sea Otter Census: 2018 Census Summary Shapefile
Department of the Interior —
The GIS shapefile "Census summary of southern sea otter 2018" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the... -
Federal
Summary of stranded southern sea otters, 1985-2018
Department of the Interior —
The southern sea otter (Enhydra lutris nereis), also known as California sea otter, was listed as threatened in 1977 under the Endangered Species Act. Since 1985,... -
Federal
Sea Otter surveys from selected Western Aleutian Islands, Alaska and Bering Island, Russia between 1959-2015
Department of the Interior —
The data table consists of a compilation of sea otter survey results from Bering Island, Russia and select Western Aleutian Islands conducted between 1959 and 2015.... -
Federal
Data from: Tool use increases mechanical foraging success and tooth health in southern sea otters (Enhydra lutris nereis)
Department of the Interior —
One CSV file with data from basic field surveys of southern sea otters at five sites in California, USA, including (from north to south) Elkhorn Slough, Monterey, Big... -
Federal
Annual California Sea Otter Census: 2018 Range Extent Shapefile
Department of the Interior —
The GIS shapefile "Range extent of southern sea otters 2018" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris... -
Federal
Levels of persistent organic pollutants found in the blood of sea otters captured in the western Aleutian Islands and southeast Alaska in 1997
Department of the Interior —
The data consist of levels of organic pollutants found in the blood of sea otters captured from five areas in the western Aleutian Islands and in Cross Sound in... -
Federal
Glacier Bay National Park and Preserve Sea Otter Forage Data, 1993-2019
Department of the Interior —
These data describe observations of sea otter foraging behavior in Glacier Bay National Park and Preserve. Data consist of dive and surface times, success in prey... -
Federal
Annual California Sea Otter Census—1985-2014 Spring Census Summary
Department of the Interior —
This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring... -
Federal
Sea Otter Aerial Survey Data from Lower Cook Inlet, Alaska, 2017
Department of the Interior —
This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in lower Cook Inlet, Alaska, based on data... -
Federal
Sea otter carcass recovery rates from Bering Island, some Western Aleutian Islands, the Alaskan Peninsula and Prince William Sound, 1971-2009
Department of the Interior —
The table presents summary data of sea otter skulls found on carcass searches conducted along stretches of shoreline at islands or locations along a longitudinal span... -
Federal
Annual California Sea Otter Census: 2017 Range Extent Shapefile
Department of the Interior —
The GIS shapefile "Range extent of southern sea otters 2017" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris... -
Federal
Sea Otter survey data, carcass recovery data, and blood chemistry data from southwest Alaska
Department of the Interior —
Three data sets are included here to aid in assessment of the sea otter population collapse in southwest Alaska. One data set consists of results of sea otter surveys... -
Federal
Annual California Sea Otter Census—2017 Spring Census Summary
Department of the Interior —
The spring 2017 mainland sea otter count began on April 30, and although the shore-based counts were completed by May 12, 2017, the aerial counts were not completed... -
Federal
Annual California Sea Otter Census—2018 Spring Census Summary
Department of the Interior —
The spring 2018 mainland sea otter count began on April 26, and was completed by May 24, 2018. Overall viewing conditions this year were good and rounded off to the... -
Federal
Range_Extent_15
Department of the Interior —
The GIS layer "Range_extent_15" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris nereis) in mainland... -
Federal
Annual California sea otter census - 2019 spring census summary
Department of the Interior —
The spring 2019 mainland sea otter count began on May 1 and was completed by July 9. Overall viewing conditions this year were very good, better than those... -
Federal
Annual California Sea Otter Census: 2019 Extra Limit Observations Shapefile
Department of the Interior —
The GIS shapefile Extra limit counts of southern sea otters 2019 is a point layer representing the locations of sea otter sightings that fall outside the officially... -
Federal
Sea Otter Aerial Survey Data from Lower Cook Inlet and the Outer Kenai Peninsula, Alaska, 2002
Department of the Interior —
This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in lower Cook Inlet and the outer Kenai... -
Federal
Annual California Sea Otter Census: 2019 Range Extent Shapefile
Department of the Interior —
The GIS shapefile Range extent of southern sea otters 2019.shp is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris...
35 datasets found