Wild Trout Evaluations, Subproject II, Study IV PDF Download
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Author: Daniel J. Schill
Publisher:
ISBN:
Category : Compliance
Languages : en
Pages : 20
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Author: Daniel J. Schill
Publisher:
ISBN:
Category : Compliance
Languages : en
Pages : 20
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Author: Daniel J. Schill
Publisher:
ISBN:
Category : Electric fishing
Languages : en
Pages : 10
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Author: Daniel J. Schill
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 109
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Author: Steve Elle
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 49
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Author: Jeff C. Dillon
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 79
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Author: Frank Richardson
Publisher:
ISBN:
Category : Fishery resources
Languages : en
Pages : 240
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Book Description
The first Wild Trout Symposium (1974) was sponsored by Trout Unlimited and the United States Department of the Interior. The second Symposium (1979) added the Federation of Fly Fisherman as a sponsor. Five years later (1984) the U.S. Department of Agriculture - Forest Service joined. In 1989 , the U.S. Environmental Protection Agency and the American Fisheries Society joined. These symposia began with a concentration on management, then recognized that more than 'management' was required in ongoing efforts to enhance wild salmonid fisheries. Subsequent symposia began to examine a broader range of environmental and social factors influencing wild salmonids. The originators hoped that each symposium would be a building block upon which the succeeding symposium could provide insights and research which future sessions could revisit. Along with the broadening of sponsorship, we have grown , we have gained recognition, and we look forward to expanding our contribution to the cause of wild salmonids. We hope these Proceedings will stimulate readers thinking and efforts on behalf of our wild salmonid resources , and plan to participate with us in Wild Trout V.
Author: Curtis J. Roth
Publisher:
ISBN:
Category : Brook trout
Languages : en
Pages : 118
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Book Description
Non-native Brook Trout Salvelinus fontinalis were introduced throughout western North America in the early 1900s, resulting in widespread self-sustaining non-native populations that are difficult to eradicate and often threaten native salmonid populations. A novel approach to eradicating undesirable Brook Trout populations is using YY male (MYY) Brook Trout. YY male Brook trout are created in the hatchery by feminizing XY males and crossing them with normal XY males. When MYY Brook Trout reproduce successfully with wild females, all offspring are males. This can potentially be used to shift the sex ratio of the wild population toward males, potentially reaching a point where no females remain in the population to reproduce, thus eliminating the population. We stocked fingerling (mean = 126 mm; range = 75–184 mm) MYY Brook Trout in three streams and four lakes in 2020, and catchable (mean = 284 mm; range = 189–340 mm) MYY Brook Trout in two streams and two lakes in 2020 to attempt to eradicate wild Brook Trout in these study systems; these waters have now been stocked for several years, some as early as 2015. Prior to stocking, we suppressed wild Brook Trout via mechanical removal in two streams and two lakes to potentially increase survival of stocked MYY Brook Trout, and therefore decrease the time to eradication. Suppression via mechanical removal in 2020 was 77% in Dry Creek, 46% in Pike’s Fork Creek, 28% in Martin Lake, and 41% in Seafoam Lake #4. This long-term study is scheduled to be completed in 2026.
Author:
Publisher:
ISBN:
Category : Fishery resources
Languages : en
Pages : 236
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Author: Curtis J. Roth
Publisher:
ISBN:
Category : Brook trout
Languages : en
Pages : 0
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Author: Gregg Mauser
Publisher:
ISBN:
Category : Fish stocking
Languages : en
Pages : 47
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