Found 87 datasets matching "aerial counts".
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The National Marine Mammal Laboratory conducted aerial surveys to monitor the abundance and distribution of beluga whales in Cook Inlet, Alaska. This database contains the counts of beluga whale...
Search relevance: 109.54 | Views last month: 0 -
As part of the Steller sea lion research project, the NOAA Alaska Fisheries Science Center Marine Mammal Laboratory, Alaska Ecosystem Program, has conducted surveys of Steller sea lions in Alaska...
Search relevance: 104.45 | Views last month: 0 -
This dataset supports efforts to estimate the abundance and trends in population size of Alaska harbor seals. Annual surveys of harbor seal populations are fundamental to estimation of seal...
Search relevance: 102.77 | Views last month: 0 -
This dataset includes tables summarizing image information and bird counts from the aerial digital images taken over open water at Izembek Lagoon in Alaska in fall 2017-2019. These summaries list...
Search relevance: 102.38 | Views last month: 0 -
This dataset provides counts of harbor seals from aerial surveys over Iliamna Lake, Alaska, USA. The data have been collated from three previously published sources (Mathisen and Kline 1992; Small...
Search relevance: 100.54 | Views last month: 0 -
This dataset supports efforts to estimate the abundance and trends in population size of Alaska harbor seals. Annual surveys of harbor seal populations are fundamental to estimation of seal...
Search relevance: 96.40 | Views last month: 1 -
This dataset provides counts of harbor seals from aerial surveys over Lake Iliamna, Alaska, USA. The data have been collated from three previously published sources (Mathisen and Kline 1992; Small...
Search relevance: 96.08 | Views last month: 0 -
The GIS shapefile "Extra limit counts of southern sea otters 2016" is a point layer representing the locations of sea otter sightings that fall outside the officially recognized range of the...
Search relevance: 66.44 | Views last month: 1 -
The GIS shapefile "Extra limit counts of southern sea otters 2017" is a point layer representing the locations of sea otter sightings that fall outside the officially recognized range of the...
Search relevance: 65.15 | Views last month: 0 -
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 recognized range of the...
Search relevance: 65.02 | Views last month: 3 -
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 until July 12, 2017. Overall...
Search relevance: 64.22 | Views last month: 0 -
Aerial surveys were conducted during 1983–2006 in the Ketchikan, Sitka, Kodiak, and Bristol Bay areas of Alaska to estimate trends in abundance of harbor seals.
Search relevance: 63.99 | Views last month: 0 -
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 nereis) in mainland California,...
Search relevance: 63.91 | Views last month: 0 -
The GIS layer "Range_extent_15" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris nereis) in mainland California, based on data collected...
Search relevance: 62.66 | Views last month: 0 -
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 nereis) in mainland...
Search relevance: 62.49 | Views last month: 1 -
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 nereis) in mainland California,...
Search relevance: 62.08 | Views last month: 0 -
The GIS shapefile "Range extent of southern sea otters 2016" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris nereis) in mainland California,...
Search relevance: 61.91 | Views last month: 1 -
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...
Search relevance: 54.99 | Views last month: 0 -
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...
Search relevance: 54.15 | Views last month: 0 -
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...
Search relevance: 54.04 | Views last month: 2
