Download or read book Wild Trout Evaluations post Stocking Survival and Reproductive Success of YY Male Brook Trout in Streams written by Patrick Allen Kennedy and published by . This book was released on 2016 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Project 3 Wild Trout Evaluations written by Curtis J. Roth and published by . This book was released on 2021 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Brook Trout Stocking an Annotated Bibliography and Literature Review with an Emphasis on Ontario Waters written by S. J. (Steven James) Kerr and published by Peterborough : Fish and Wildlife Branch, Ontario Ministry of Natural Resources. This book was released on 2000 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Watershed scale Monitoring Protocol for Bull Trout written by Dan Isaak and published by . This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparisons of Performance and Behavior Between Two Strains of Age 0 Brook Trout Stocked Into Adirondack Waters written by Henry Keith Van Offelen and published by . This book was released on 1990 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Brook Trout Populations in Headwater Stream Networks written by Yoichiro Kanno and published by . This book was released on 2011 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MY Y Brook Trout Stocking and Survival in Streams written by Patrick Allen Kennedy and published by . This book was released on 2018 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Brook Trout Salvelinus Fontinalis Spawning Habitat in a Boreal Stream written by Jan Franssen and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The reproductive success of brook trout (Salvelinus fontinalis) populations, like those of other salmonid species, is dependent on the availability and quality of spawning/incubation habitats. For brook trout in particular substrate composition and groundwater-hyporheic flow characteristics are key abiotic factors influencing both the suitability of lotic spawning habitats and the survival of embryos nested within these habitats. Egg-to-emergence survival has been shown to be negatively related to substrate fine sediment concentrations and positively related to interstitial flow velocity. Both substrate composition (through filtering effects) and interstitial flow are also thought to influence the susceptibility of egg pockets to fine sediment infiltration. The objectives of this doctoral study are to clarify the roles of groundwater and hyporheic flow in brook trout redd site selection; as well as the effect of substrate composition and interstitial flow on...

Download or read book Wild Trout Evaluations written by Christopher Lee Sullivan and published by . This book was released on 2012 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rainbow Trout Stocking Evaluations written by and published by . This book was released on 2018 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Impacts of Stocking Hatchery Reared Trout on the Native Brook Trout Populations of Two Streams in Central Virginia written by Arthur L. LaRoche and published by . This book was released on 1979 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Stocking on Genetics of Wild Brook Trout Populations written by Charles C. Krueger and published by . This book was released on 1976 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavioural and Genetic Assessment of Mate Choice in Brook Trout Salvelinus Fontinalis written by Terin Robinson and published by . This book was released on 2010 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multifaceted approach is necessary in order to better understand the complex processes involved in mate choice. I investigated the mechanisms of mate choice using a population of brook trout (Salvelinus fontinalis) with known ancestry, using a combination of behavioural observations and microsatellite genetic data to better understand how relatedness influences mate choice in this species. Video observations of female mate choice based on kinship indicated a statistically significant preference of female brook trout for association with males, as demonstrated by the decreased activity level of females in the presence of males. No statistically significant preference for unrelated or related males was evident, however, indicating that while females preferred to be near males, the relatedness of the preferred males varied between individuals. In a second experiment, the roles of relatedness, stocking and local adaptation in mate selection and mating success were investigated by introducing seven brook trout families of known ancestry and relatedness into a semi-wild environment. Reproductive contributions were assessed using two consecutive years of sampling newly hatched fry and determining parentage via microsatellite genotyping. Low levels of reproductive success of the stocked fish, along with little evidence of introgression, suggest that local adaptation is an important (and limiting) component of successful reproduction in this species. These findings are important to future conservation and management of brook trout, as they highlight the importance of maintaining genetic diversity and evolutionary potential both within and between populations.

Download or read book Influence of a Flood Water Detention Dam on Reproductive Success of Wild Brown Trout written by Wisconsin. Department of Natural Resources. Bureau of Research and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A flood water dentetion dam on Trout Creek was found to have no detrimental effects upon survival of trout embryos either above or below the dam.

Download or read book Annual Production by Brook Trout in Lawrence Creek During Eleven Successive Years written by Robert L. Hunt and published by . This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Potential for Increasing Abundance of Cutthroat Trout in Streams by Stocking Fry and Removal of Brook Trout written by Paul K. Cowley and published by . This book was released on 1987 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Brook Trout Salvelinus Fontinalis written by Michael Isel (III.) and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 100 brook trout were transplanted into each of four Virginia streams in September 2008. Garth Run and Kinsey Run were re-introductions, and Wildcat Hollow and Sweet Run were new introductions. Single pass electrofishing (EF) surveys were conducted with a backpack electrofisher five times during the study. Selected trout> 70 mm but 100 mm and all trout 100 mm received a Biomark® 134.2 kHz passive integrated transponder (PIT) tag to identify individual fish upon recapture. Trout were present in all streams almost three years post introductions. Catches decreased across the first four surveys. Young of year catch rates severely decreased from June 2009 (n = 77) to June 2010 (n = 7). Adult refuge under low flow conditions and environmental factors such as elevated stream temperatures and drought were determined to be potential limiting factors of brook trout success. Future monitoring is needed to further assess the populations.