Found 19 datasets matching filters. (clear all filters)
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Database of seal counts from aerial photography. Counts by image, site, species, and date are stored in the database along with information on entanglements and other human interactions.
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 14, 2026 at 07:18 AM -
The primary objectives of this study are to estimate a predation rate by harbor seals on steelhead smolt in Puget Sound, and determine whether predation by harbor seals differs by region. ...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 14, 2026 at 07:23 AM -
This data layer represents the 12 uniquely identified stocks of harbor seals found in Alaskan waters. Stocks were identified by NMFS and their co-management partners, the Alaska Native Harbor Seal...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: April 12, 2026 at 12:48 PM -
Aerial surveys of coastal Alaska are the primary method for estimating abundance of harbor seals. A particular challenge associated with aerial surveys of harbor seals is maintaining consistent...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: April 12, 2026 at 12:43 PM -
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: 1.00 | Views last month: 1 | Catalog Last Checked: April 12, 2026 at 12:43 PM -
Within the order Carnivora, the Pinnipedia sub-order is a group of marine mammals that includes sea lions, fur seals, true seals, and walruses. Pinnipeds are keystone species who serve as...
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The acoustic data collected in Glacier bay from 2005 2007 was used to study the link between marine predator (harbor seals) diving behavior to local prey fields in contrasting habitats in a...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:44 PM -
Aerial surveys of coastal Alaska are the primary method for estimating abundance of harbor seals. A particular challenge associated with aerial surveys of harbor seals is maintaining consistent...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:41 PM -
Floating glacial ice serves as a haul-out substrate for a significant number (10-15%) of Alaskan harbor seals, and thus surveying tidewater glacial fjords is an important component of statewide...
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Polar Ecosystems Program research projects focus primarily on abundance, trends, distribution, health and condition, and foraging behavior of phocids (harbor, bearded, ringed, spotted, and ribbon...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:41 PM -
Population monitoring studies of harbor seals in Glacier Bay National Park, Alaska, have spanned five decades from the 1970’s to the present (Streveler 1979; Calambokidis et al. 1987; Mathews &...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: January 25, 2026 at 05:27 PM -
Polar Ecosystems Program research projects focus primarily on abundance, trends, distribution, health and condition, and foraging behavior of phocids (harbor, bearded, ringed, spotted, and ribbon...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:41 PM -
This dataset contains population size, distribution, reproductive success, and disturbance data on Pacific harbor seal (Phoca vitulina richardii) and northern elephant seals (Mirounga...
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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: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:43 PM -
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: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:43 PM -
Between 2004 and 2006 we conducted four harbor seal tagging trips in Cook Inlet during the months of October and May. In total, we captured and released 93 harbor seals, 77 of which were tagged...
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Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 28, 2026 at 07:41 PM -
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: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:43 PM -
Polar Ecosystems Program research projects focus primarily on abundance, trends, distribution, health and condition, and foraging behavior of phocids (harbor, bearded, ringed, spotted, and ribbon...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: April 12, 2026 at 12:45 PM
