Search datasets
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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: 233.59 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:53 PM -
The NEFSC has been conducting aerial surveys of gray seal pupping colonies since 2000 to monitor the number of pups born in U.S. waters. Surveys are flown from either a Cessna 252, Cessna...
Search relevance: 110.14 | Views last month: 5 | Catalog Last Checked: October 06, 2026 at 08:57 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: 106.81 | Views last month: 2 | Catalog Last Checked: November 12, 2026 at 03:00 AM -
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: 100.87 | Views last month: 1 | Catalog Last Checked: August 02, 2026 at 11:56 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: 90.64 | Views last month: 1 | Catalog Last Checked: August 02, 2026 at 11:56 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: 88.25 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:55 PM -
This data set contains records of Hawaiian monk seal and green turtle sightings in the Northwestern Hawaiian Islands (NWHI) since 1982 at Lisianski Island, and since 1983 for most other...
Search relevance: 55.37 | Views last month: 3 | Catalog Last Checked: August 02, 2026 at 11:15 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: 49.37 | Views last month: 1 | Catalog Last Checked: August 02, 2026 at 11:56 PM -
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: 46.98 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 02:34 AM -
In the spring of 2007 and 2008, researchers from the Alaska Fisheries Science Center conducted aerial surveys for ribbon, bearded, and spotted seals in the US sector of the Bering Sea. The surveys...
Search relevance: 46.15 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:53 PM -
Aerial surveys were flown during the spring of 2012 and 2013 as part of the Bering Okhotsk Seal Surveys (BOSS) project to gather data on distribution and abundance of ice-associated seals in the...
Search relevance: 44.37 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:59 PM -
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: 44.10 | Views last month: 1 | Catalog Last Checked: October 26, 2026 at 08:31 PM -
No description was provided.
Search relevance: 38.66 | Views last month: 2 | Catalog Last Checked: August 03, 2026 at 12:03 AM -
'Aerial photographs of Antarctica from the United States Antarctic Resource Center (USARC) and the British Antarctic Survey (BAS) are maintained in this collection. USARC data are used by...
Search relevance: 38.30 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:13 PM -
This dataset contains aerial survey data from the surveys described below. The Bureau of Ocean Energy Management (BOEM), formerly the Minerals Management Service (MMS), and its precursor, the...
Search relevance: 30.32 | Views last month: 3 | Catalog Last Checked: October 26, 2026 at 07:38 PM
