Native Rainbow Trout In Montana

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Authors
Espeland, Darryl
Scow, Dean
Advisor
James Manion
John Christenson
Guido Bugni
Editor
Date of Issue
1978-04-01
Subject Keywords
Publisher
Citation
Series/Report No.
item.page.identifier
Title
Native Rainbow Trout In Montana
Other Titles
Type
thesis
Description
Abstract
Previous reports have indicated the absence of rainbow trout as native in Montana. All planted rainbow trout in Montana came indirectly from the McCloud River in California and were originally derived from a coastal steelhead trout population. Electrophoretic techniques can distinguish between inland and coastal steelhead trout. Using these techniques, along with evidence from hatchery records and geographical distribution, it is shown that rainbow trout are native in Callahan Creek and in the Yaak River. This is important in the consideration of fish planting measures because the gene pool of these natural populations could be jeopardized by plantings of hatchery stocks, thus eliminating fish which should be better adapted to the Montana enviornment.
Sponsors
Degree Awarded
Bachelor's
Semester
Spring
Department
Life & Environmental Sciences