Population characteristics of lake trout in Walker Lake, Gates of the Arctic National Park and Preserve, Alaska
Adams FJ. 1990. Population characteristics of lake trout in Walker Lake, Gates of the Arctic National Park and Preserve, Alaska. University of Alaska Fairbanks
The lake trout population of Walker Lake was investigated during the summers of 1987 and 1988. Life history information was gathered including age, length, weight, sex, fecundity, spawning, and distribution. Adults were most numerous after ice-out at stream mouths, juveniles were most common in pelagic areas, and fingerlings occurred mainly at stream mouths. Ages ranged from 5 to 26 years, lengths from 203 to 924 mm, weights from 83 to 8500 g, and both sexes became mature at age 12. Comparisons of growth curves and fecundity-at-length curves among populations in various Alaska lakes suggest that lake trout in Walker Lake have not experienced heavy exploitation.
- Type
- Academic
- Authors
- Adams, Francis
- Date of Issue
- 1990
- Publisher
- University of Alaska Fairbanks
- Units
- ARCN , GAAR
- Keywords
- Age, Baseline Inventory, Fish, Freshwater Fish, Gates Of The Arctic National Park And Preserve, Lake Trout, Life History, Population Ecology, Salvelinus namaycush, Size, Thesis, Walker Lake