Contributions

  • Bernard, David R. - Contributor
  • Alaska. Division of Sport Fish. - Contributor

Publication

1993 - Alaska Dept. of Fish and Game, Division of Sport Fish, Anchorage, Alaska, Alaska

Language

English

Word Count

9,250 words, Guess

Page Count

37 pages

Identifiers

Description

Abundance and indices of abundance were estimated for populations of burbot Lota lota in Lake Louise, Moose, and Tolsona lakes in Southcentral Alaska. Sampling occurred during the month of June 1992. Mean catch per unit of effort of fully recruited burbot (450 millimeters total length and larger) per 48-hour set ranged from 0.41 (SE = 0.03) in Lake Louise to 3.14 (SE = 0.51) in Tolsona Lake. Abundance during 1991 of fully recruited burbot estimated with mark-recapture experiments was greatest in Lake Louise (4,467; SE = 722) and lowest in Moose Lake (1,098 fish; SE = 175). Annual survival rate for fully recruited burbot in Lake Louise was 73.3%. However, overwinter survival rates for fully recruited burbot in Moose and Tolsona lakes ranged from 67.7% to 70.7%. Spring catchability coefficients of fully recruited burbot (0.634) continue to be higher than summer catchability coefficients (0.426), indicating that larger catches needed for mark-recapture experiments should occur within 30 days after thaw or 30 days before ice cover.

Subjects

Topics

BurbotBurbot -- AlaskaFish populationsFish populations -- Alaska -- Moose LakeFish populations -- Alaska -- Lake LouiseFish populations -- Alaska -- Tolsona Lake

Places

AlaskaMoose LakeLake LouiseTolsona Lake

Series Statement

  • Fishery data series -- no. 93-19.

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