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• Organization: Department of the Interior
• Updated: 20200827 | Harvested: July 18, 2025 at 03:46 AM

This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring survey" -- generally beginning in...

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• Organization: Department of the Interior
• Updated: 20200830 | Harvested: July 18, 2025 at 01:52 AM

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 southern sea otter (Enhydra...

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• Organization: Department of the Interior
• Updated: 20200827 | Harvested: July 18, 2025 at 04:12 AM

The GIS shapefile "Census summary of southern sea otter 2017" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra...

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• Organization: Department of the Interior
• Updated: 20200830 | Harvested: July 17, 2025 at 08:36 PM

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 lutris nereis), based on data...

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• Organization: Department of the Interior
• Updated: 20200830 | Harvested: July 18, 2025 at 07:17 AM

Sea otters are well-known tool users, employing objects such as rocks or shells to break open invertebrate prey. We used a series of generalized linear mixed effect models (GLMEs) to examine...

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• Organization: Department of the Interior
• Updated: 20200827 | Harvested: July 18, 2025 at 08:16 AM

The GIS shapefile "Census summary of southern sea otter 2016" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra...

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• Organization: Department of the Interior
• Updated: 20200827 | Harvested: July 18, 2025 at 07:40 AM

These data are .csv files of capture data from tagged sea otters in the Santa Barbara Channel Study. Sea otters were captured using highly specialized techniques employed by a team a rebreather...

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• Organization: Department of the Interior
• Updated: 20200827 | Harvested: July 18, 2025 at 07:40 AM

These data are .csv files of tagged sea otter re-sighting locations (henceforth, resights) collected in the field using a combination of VHF radio telemetry and direct observation using high...

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• Organization: Department of the Interior
• Updated: 20200830 | Harvested: July 18, 2025 at 09:02 AM

The GIS layer "Census_sum_15" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra lutris nereis), based on data...

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• Organization: Department of the Interior
• Updated: 20201016 | Harvested: July 18, 2025 at 03:25 AM

During 2002−2015 we examined the causes of mortality in beachcast northern sea otters (Enhydra lutris kenyoni) collected from the coasts of Washington and Oregon states. A total of 333 moribund or...

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