• Organization: State of California
• Updated: 2024-01-10T18:53:30.678Z

In May of 2001, the California Department of Fish and Game (CDFG) conducted an aerial photographic survey of the California coast and the offshore Channel Islands to obtain a minimum estimate of...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:40:21.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:41:39.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:41:56.000+00:00

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.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-01-01T00:00:00.000+00:00

From 1994 to 2005, The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collected fecal samples at the Umpqua River, Oregon and Columbia River,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-02-03T00:00:00.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-06-18T00:00:00.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-01-07T00:00:00.000+00:00

From 1994 to 2005, The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collected fecal samples at the Umpqua River, Oregon and Columbia River,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2019-05-20T00:00:00.000+00:00

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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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-07-16T14:20:00.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-01-01T00:00:00.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:46:16.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-07-26T00:00:00.000+00:00

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. ...

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• Organization: Department of the Interior
• Updated: 2025-05-13T00:00:00Z

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 &...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-05-15T19:15:48.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-03-15T00:00:00.000+00:00

The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collects fecal samples to examine the diet of pinnipeds, including California sea lions (Zalophus...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-01-01T00:00:00.000+00:00

The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collects fecal samples to examine the diet of pinnipeds, including California sea lions (Zalophus...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:45:53.000+00:00

Relatively little is known of the diet and foraging behaviors of the four species of ice-associated seals (ribbon seal, bearded seal, spotted seal, and ringed seal) and harbor seals in Alaska....

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-07-16T14:19:39.000+00:00

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...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-04-17T22:46:31.000+00:00

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...

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