Inventory of population status and local adaptation in Surprise Lake sockeye salmon: progress in 2000
Hamon TR. 2001. Inventory of population status and local adaptation in Surprise Lake sockeye salmon: progress in 2000. National Park Service. King Salmon, AK
Sockeye salmon populations in Aniakchak Caldera and the Aniakchak River drainage were recently established compared to other sockeye salmon populations in Southwest Alaska, and were poorly documented. Sockeye rearing in lakes throughout southwest Alaska show predictable morphological differentiation relative to their spawning environment. We sought to document spawning populations and habitats, and obtain morphological and habitat measurements and genetic samples for comparison with other southwest Alaska populations. In the study's first two years, we successfully identified ten spawning aggregations, nine within the caldera and one at Albert Johnson creek, and sampled spawning adults from five aggregations. We also obtained the first documentation of king salmon within the Aniakchak River drainage and identified a number og sites that do not house spawning populations of sockeye salmon despite their apparent suitability.
- Type
- Unpublished Report
- Authors
- Hamon, Troy
- Date of Issue
- 2001-04
- Publisher
- National Park Service
- Units
- ANIA
- Keywords
- albert johnson creek, Aniakchak Caldera, Aniakchak National Park, Aniakchak River Drainage, Inventory And Monitoring, local adaptation, Population, Population Status, Sockeye Salmon, Southwest Alaska, Surprise Lake