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    Population characteristics of lake trout in Walker Lake, Gates of the Arctic National Park and Preserve, Alaska

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    Adams_F_1990.pdf
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    Author
    Adams, Francis Jeffrey
    Keyword
    Lake trout
    Trout
    Walker Lake
    Fish populations
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/13154
    Abstract
    The population of lake trout in Walker Lake, southern Brooks Range, was investigated during summers. 1987 and 1988. Adults were most abundant at stream mouths after ice-out. Juveniles were most abundant in pelagic areas. Fingerlings preferred stream mouths. Ages ranged from 5 to 26 years. Lengths ranged from 203 to 924 mm; weights from 83 to 8,500 g. Both sexes had similar condition and matured at age 12. Fecundity increased with length and age. Females spawn every other year. Comparisons of growth curves and fecundity- at-length curves among populations in various Alaskan lakes suggested that lake trout in Walker Lake have not experienced heavy exploitation. The lake trout population in Walker Lake should be monitored in the future through angler surveys and selected studies of life history.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 1990
    Date
    1990-05
    Type
    Thesis
    Collections
    Fisheries

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