Download or read book Conservation Genetics and Metapopulation Structure of Brook Trout Salvelinus Fontinalis in Nipigon Bay Lake Superior Ontario written by Silvia D'Amelio and published by . This book was released on 2002 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Genetics and Metapopulation Structure of Book Trout Salvelinus Fontinalis in Nipigon Bay Lake Superior Ontario written by Silvia D'Amelio and published by . This book was released on 2002 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Investigation of Brook Trout Salvelinus Fontinalis Population Structure in Lake Superior Tributaries Located in Pictured Rocks National Lakeshore Michigan USA written by and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focused on four tributaries located in Pictured Rocks National Lakeshore: Miners River, Mosquito River, Sevenmile Creek, and Hurricane River. Eight microsatellite loci were used to examine genetic diversity and structure between groups of brook trout. Brook trout were sampled in Open and Restricted sections from each tributary for wider comparisons between groups. Open designated sections are the downstream portion of the tributary with access to Lake Superior, whereas each Restricted section is the upstream portion above a barrier to fish movement (i.e. waterfall). Adfluvial brook trout were classified from PIT tag movement data from two of the streams (MOS and SVN). Abundance of classified adfluvial (coaster) brook trout, individuals that utilize both stream and lake environments, varied between streams (MOS=35 to SVN= 106). The results showed that adfluvial brook trout were more closely related to the fluvial brook trout from their stream of capture than to other designated adfluvial groups. All Restricted sections of rivers were most closely related to their Open section counterparts, with the exception of Hurricane Restricted which was most closely related to Sevenmile Open. Within the Restricted sections there was moderate genetic differentiation between all tributaries. Miners River was the most genetically distinct population overall followed by Mosquito River, which showed levels consistent with higher interaction rates between other tributaries. Sevenmile Creek and Hurricane River are the most genetically similar populations. This suggests that there is more movement of brook trout between Sevenmile Creek and Hurricane River than between the other sites in PIRO. I suggest that the movement of adfluvial brook trout between systems is the most likely explanation for these patterns and inter-stream movement is driving the genetic dynamics found across the population.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2003 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Genetics of Remnant Anadromous Brook Trout Salvelinus Fontinalis Populations at the Southern Limit of Their Distribution written by Brendan J. Annett and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The State of Lake Superior in 2000 written by Mark P. Ebener and published by . This book was released on 2007 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use and Movement by Brook Trout Salvelinus Fontinalis and Rainbow Trout Oncorhynchus Mykiss in Three Tributaries of Nipigon Bay Lake Superior microform written by Kenneth Joseph MacIntosh and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three streams were surveyed: Dublin Creek, MacInnes Creek, and Little Cypress River in Northwestern Ontario.
Download or read book CONSERVATION GENETICS OF SOUTHERN APPALACHIAN BROOK TROUT Salvelinus Fontinalis written by Thomas Casey Weathers and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many range-restricted species, particularly mountaintop species, are often the first groups in which entire species experience extinction due to range contractions and perturbations. Rear-edge, lower latitude, salmonid populations often occupy fragmented habitats and may in turn exhibit more pronounced signatures of isolation than higher latitude conspecifics. Therefore, rear-edge populations present significant conservation challenges to biologists interested in identifying and maintaining ecological and evolutionary processes within and among such populations. Brook Trout (Salvelinus fontinalis), the only endemic salmonid to southern Appalachia, are rich in ecologically and evolutionarily interesting traits such as multiple life history forms, broad latitudinal and elevational distribution, and prodigious neutral genetic differentiation. Causes of continual Brook Trout population and range declines include overharvest, acid precipitation, habitat degradation, competition with non-native species, and climate change. Such declines have led to the increased isolation of many populations of Brook Trout. In the absence of gene flow many isolated populations of Brook Trout may exhibit rapid genetic drift or inbreeding, thus resulting in subsequent losses of adaptive potential. Consequently, there is considerable demand for the implementation of restoration programs that maximize population recovery and resilience of wild Brook Trout. As such, resource managers must plan for an evolutionary future for such a trust species. While the current paradigm of conservation places emphasis on recognition and protection of irreplaceable evolutionarily distinct lineages, the precise and accurate delineation of populations must become a priority. Once populations are identified the best strategy for future conservation may be to enhance connectivity via restoration or translocation efforts rather than protecting specific genotypes. Elucidating spatial clusters of Brook Trout is critical to their conservation, particularly regarding unprecedented environmental change. Therefore, I have combined informative microsatellite data with riverscape genetics approaches to assess whether functional (meta)population assemblages exist among rear-edge populations of Brook Trout sampled across southern Appalachia in the following research chapters. My research elucidates the effects of isolation and fragmentation on Brook Trout genetic and phenotypic (i.e., morphometric and meristic) differentiation, whether neighboring populations exhibit enough gene flow to warrant being considered metapopulations, and the effect of potential barriers to gene flow upon subsequent metapopulation dynamics and genetic diversity. My research largely suggests that rear-edge populations of Brook Trout exhibit extensive neutral genetic differences and appear to be prodigiously isolated. My findings provide biologists a reference when setting management and conservation priorities and may foster more aggressive efforts focused on restoring connectivity among many populations of rear-edge Brook Trout. Further, by demarcating population and subpopulation clusters across riverscapes I provide resource managers information needed to enhance future Brook Trout conservation outcomes.I sought to document existing patterns of genetic variation within and among populations of Brook Trout and then translate my results into an approachable format for managers to access for future management and conservation decision making and to further encourage managers to implement population genetic monitoring programs. My work supports that non-native trout removals combined with habitat restorations could improve connectivity and enhance the outlook for many fragmented populations of wild, native brook trout across southern Appalachia. Moreover, it is my hope that the results from these studies can be used by Brook Trout biologists to select local restoration source stocks used to potentially bolster the effectiveness of different conservation strategies (i.e., founder translocations and genetic rescue).
Download or read book Conservation Applications of Watershed Level Brook Trout Riverscape Genetics written by Lucas Nathan and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary Brook Trout Salvelinus fontinalis populations are often fragmented due to anthropogenic influences. Although research and conservation actions have traditionally focused at the stream-reach level, inter-stream movements may connect seemingly isolated populations to form larger metapopulations. The overall goal of my research was to use watershed-level riverscape genetics to inform Brook Trout conservation. Specifically, my objectives were to 1) present a synthesis of existing Brook Trout literature and identify future research directions, 2) evaluate Brook Trout genetic population structuring and identify gene flow barriers at the watershed level, 3) validate and modify a pre-existing Brook Trout habitat patch spatial layer that can be used to predict extant Brook Trout metapopulations, and 4) develop decision support tools to identify Brook Trout conservation opportunity areas (COAs) at watershed levels. Using empirical data, I found evidence of genetic connectivity among streams spanning 5 - 15 km of mainstem habitat. Watersheds with high levels of development were associated with increased differentiation, suggesting that development acts a barrier to gene flow at the watershed level. The pre-existing patch layer adequately predicted many genetic metapopulations, however patches with dams or high levels of development often exhibited higher levels of genetic structuring. Modifying the patches reduced evidence of genetic structuring, which suggested a better representation of existing genetic patterns. Using the set of COA tools, I identified patches and watersheds across Connecticut to target for specific conservation actions. Simulating barrier removals, I found rapid (1 - 10 years) increases in genetic diversity, however barrier severity and monitoring location strongly influenced the observed effects. Through this research, I have demonstrated that Brook Trout, despite being isolated by unsuitable mainstem habitat, exist in metapopulations at the watershed level. Such dynamics are important for long term population viability, and thus conservation actions should take watershed-level processes into consideration. Using the modified patch layer and the set of COA tools I developed as part of this research, resource managers can visualize and identify areas across broad landscapes to target for Brook Trout conservation. Doing so will promote the long-term resilience and adaptive potential of Brook Trout metapopulations.
Download or read book Genetic Diversity and Population Structure of Brook Trout Salvelinus Fontinalis in a Remote Adirondack Watershed written by Spencer Bruce and published by . This book was released on 2014 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Genetic Effect of Stocking and Population Structure of Brook Trout Salvelinus Fontinalis in the Beef River written by Kevin Callen and published by . This book was released on 1983 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use Movement Patterns and Home Ranges of Coaster Brook Trout in Nipigon Bay Lake Superior microform written by Jamie Michael Mucha and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival and Growth of Matched Plantings of Lake Trout Salvelinus Namaycush Brook Trout Salvelinus Fontinalis and Lake X Brook F1 Splake Hybrids and Backcrosses in Northeastern Ontario Lakes written by Peter E. Ihssen and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservatin Genetics of Brook Trout Salvelinus Fontinalis written by Matthew William Jones and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Complexity and Variability in Migratory Systems Using Brook Trout in Lake Superior written by Melissa M. Robillard and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brook Trout Salvelinus Fontinalis Genetic Structure in New York State written by Spencer Bruce and published by . This book was released on 2018 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microsatellite based Genetic Monitoring in Lake Superior Brook Trout Salvelinus Fontinalis Hatchery Strains written by Anne Cooper and published by . This book was released on 2004 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
