Effects of Size at Release in Rainbow Trout Salmo Gairdneri Stocked in a Winterkill LakeEffects of Size at Release in Rainbow Trout Salmo Gairdneri Stocked in a Winterkill Lake
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Book, 1987
Current format, Book, 1987, , No Longer Available.
Book, 1987
Current format, Book, 1987, , No Longer Available. Offered in 0 more formats
Winterkill lakes are generally very productive and are suitable for supporting a trout population during the ice-free period, although they cannot sustain a population when ice and snow cover reduces the dissolved oxygen concentrations. This study was undertaken to determine whether yearling rainbow trout could be graded to include a large number of precocious males, which could then be utilized to develop a fishery in a winterkill lake, since such males become less attractive for fishing purposes after sexual maturity and spawning. The 3 size groups used for comparison were progeny from the 1984 spawning run at Pennask Creek. The fish were released into Horseshoe Lake in May 1985 and sampled for length, weight, clips, sex, maturity and gonad weights in October 1985. Fish were compared in 2 catchable size classes.
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