Use of High-resolution, Medium Format Aerial Photography for Monitoring Harbor Seal Abundance at Glacial Ice Haulouts
Mathews EA, Perryman WL, Dzinich LB. 1997. Use of High-resolution, Medium Format Aerial Photography for Monitoring Harbor Seal Abundance at Glacial Ice Haulouts
On July 2, 1997 we conducted an experiment to test the feasibility of using medium format, high-resolution aerial photographs to count harbor seals on glacial ice in Johns Hopkins Inlet in Glacier Bay National Park. A second objective was to compare the results of counts from photographs to a simultaneous direct count from an elevated observation site in Johns Hopkins Inlet. This experiment evolved from a collaboration between the Southwest Fisheries Science Center (NMFS, La Jolla, CA), the Alaska Department of Fish and Game, and Glacier Bay National Park Service. This report describes the methods and the results of the experiment.
- Type
- Unpublished Report
- Authors
- Mathews, Elizabeth; Perryman, Wayne; Dzinich, Lara
- Date of Issue
- 1997-11
- Units
- GLBA
- Keywords
- Animal Studies, Ecology, Inventory and Monitoring (I&M), Mammalia (Mammals)