Survey of lake trout and arctic char in the Chandler Lake System, Gates of the Arctic National Park and Preserve, 1987 and 1989
Troyer KD and Johnson RR. 1994. Survey of lake trout and arctic char in the Chandler Lake System, Gates of the Arctic National Park and Preserve, 1987 and 1989. Alaska Fisheries Technical Report. 26. US Fish and Wildlife Service, Department of the Interior. Fairbanks, AK
Fish populations were sampled at the Chandler Lake system within the Gates of the Arctic National Park and Preserve during the summer of 1987 and and spring and summer 1989. Populations were sampled using creel surveys to determine effect of sport fishing on lake trout Salvelinus namayusch and Arctic char S. alpinus, and gill nets were deployed in nearshore areas to mark and recapture fish for population estimates, determine abundance in different habitats, and obtain biological samples for age, growth, weight-length, fecundity, maturity, and food habit determination. Physical and chemical properties of the lake were also recorded. Harvests were determined to be within the levels considered sustainable for arctic and subarctic lakes. Within season movement of lake trout was documented from Little Chandler Lake to Chandler Lake, and between season movement of Arctic char in both direction between Chandler and Amiloyak lakes. Weight-length regression coefficients indicated healthy growth. Lake trout appeared to be primarily piscivorous, while Arctic char were primarily nonpiscivorous. Fecundity was withing the range documented for other populations in northern Alaska for both species. Management options are discussed, although harvest levels were low relative to population size and ther was no evidence of overexploitation.
- Type
- Published Report
- Authors
- Troyer, Kenneth; Johnson, Richard
- Date of Issue
- 1994
- Publisher
- US Fish and Wildlife Service, Department of the Interior
- Units
- GAAR
- Keywords
- Animal Studies, Arctic Char, Chandler Lake system, Creel Survey, Fecundity, Fish, Food Habits, Freshwater, Gates Of The Arctic National Park And Preserve, Gates of the Arctic National Park and Preserve AK, Habitat, Lake Trout, management options, Population Estimate