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2 edition of Evaluation of lake trout stock status and abundance in selected lakes in the upper Copper and upper Susitna drainages, 1994 found in the catalog.

Evaluation of lake trout stock status and abundance in selected lakes in the upper Copper and upper Susitna drainages, 1994

Nicole J. Szarzi

Evaluation of lake trout stock status and abundance in selected lakes in the upper Copper and upper Susitna drainages, 1994

by Nicole J. Szarzi

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Published by Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services in Anchorage .
Written in

    Subjects:
  • Lake trout -- Alaska -- Paxson Lake -- Statistics.,
  • Lake trout -- Alaska -- Lake Louise -- Statistics.,
  • Lake trout -- Alaska -- Susitna Lake -- Statistics.,
  • Fish populations -- Alaska -- Paxson Lake -- Statistics.,
  • Fish populations -- Alaska -- Lake Louise -- Statistics.,
  • Fish populations -- Alaska -- Susitna Lake -- Statistics.,
  • Fish stock assessment -- Alaska.,
  • Paxson Lake (Alaska).,
  • Lake Louise (Alaska).,
  • Susitna Lake (Alaska).

  • About the Edition

    Mark-recapture experiments were conducted to estimate the abundance, survival rates and recruitment to lake trout Salvelinus namaycush populations in Paxson Lake in the Copper River drainage, and Lake Louise in the Susitna River drainage. Maximum sustainable yields and carrying capacities of populations in Paxson Lake and Lake Louise were estimated with thermal habitat volume (THV) measurements: the average volume of water between 8 and 12 C. The mark-recapture experiment conducted at Paxson Lake in 1994 generated an estimate of abundance for 1993 of 2,262 (SE = 126) mature male lake trout on the sampled spawning beds, an increase from 1992 levels. An estimated 2,077 (SE = 112) mature males were present on the sampled spawning beds of Lake Louise in 1993. The number of mature lake trout in Paxson Lake in 1993, estimated from hook and line sampling, was of 45,427 (SE = 22,148), an increase over 1992 levels. The maximum sustainable yield of lake trout from Paxson Lake was 0.92 kg ha-1 y-1, 0.89 kg ha-1 y-1 from Lake Louise, and 0.73 kg ha-1 y-1 for Susitna Lake. The current harvest from Paxson Lake is near estimates of sustainable yield while the harvest from Lake Louise is below sustainable levels.

    Edition Notes

    Statementby Nicole J. Szarzi and David R. Bernard.
    GenreStatistics.
    SeriesFishery data series -- no. 95-40.
    ContributionsBernard, David R., Alaska. Division of Sport Fish.
    The Physical Object
    Paginationii, 24 p. :
    Number of Pages24
    ID Numbers
    Open LibraryOL15577383M


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Evaluation of lake trout stock status and abundance in selected lakes in the upper Copper and upper Susitna drainages, 1994 by Nicole J. Szarzi Download PDF EPUB FB2