Download or read book Morphological Comparison of Southern Appalachian Brook Trout Salvelinus Fontinalis Relegated to Allopatric Headwater Streams in Great Smoky Mountains National Park written by Thomas Casey Weathers and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Brook Trout of Great Smoky Mountains National Park written by Robert E. Lennon and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The brook trout of Great Smoky Mountains National Park are relatively scarce and are found only in remote, headwater streams. They are also small and short-lived. Males outnumber females, especially among sexually mature fish. The fecundity is lower than in fish of comparable size in Wisconsin and Canadian waters. Under present conditions, any increase in exploitation of the brook trout in the Park or damaging alteration of the habitat might have serious consequences for the remanent populations.

Download or read book Brook Trout salvelinus Fontinalis Preference of Aquatic Versus Terrestrial Prey in Appalachian Headwater Streams written by Erin E. Thayer and published by . This book was released on 2016 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Microhabitat Selection and Diet of Brook Trout Salvelinus Fontinalis and Rainbow Trout Salmo Gairdneri in a Great Smoky Mountains National Park Stream written by Samuel C. Lohr and published by . This book was released on 1985 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response of Brook Trout Salvelinus Fontinalis Populations to Habitat Conditions and Competition in Southern Appalachian Streams written by Amber Olson and published by . This book was released on 2021 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History Study of Brook Trout Salvelinus Fontinalis Mitchill Great Smoky Mountains National Park written by Eric L. Morgan and published by . This book was released on 1978 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Taxonomic Status of the Brook Trout Salvelinus Fontinalis in the Great Smoky Mountains National Park Based on Electrophoretic Data written by William Frederick Brandes and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History Investigations of Brook Trout Salvelinus Fontinalis Mitchill Great Smoky Mountains National Park written by John Richard Robinette and published by . This book was released on 1978 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Characteristics of Southern and Northern Brook Trout Salvelinus Fontinalis Populations at the Zone of Contact written by Joanne E. Printz and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Population genetic evidence suggests differentiation among evolutionarily significant units of southern and northern Appalachian brook trout, with the zone of contact in southwestern Virginia. Before this differentiation was recognized, brook trout of northern origin were stocked throughout the southeastern United States. In order to determine this differentiation, established allozyme markers were used to classify 56 southwest Virginia populations as southern, northern, or introgressed. Variation at 4 polymorphic loci, including the diagnostic creatine kinase (CK-A2*) locus, indicated that 19 populations were of southern origin, 5 of northern origin, and 32 of mixed genetic origin. Data compiled among genetic studies of brook trout in the southern Appalachians showed that the southern/northern break is sharp, occurring at the New/Roanoke-James watershed divide. New River drainage populations exhibited the southern allele at high frequency, suggesting their historic native character as southern, with presence of northern alleles due to stocking or stream capture events. In conclusion, the present study suggests that management of southern Appalachian brook trout should include: (1) genetically cognizant planning of stocking events, (2) management of populations on a stream-by-stream basis, (3) prioritized conservation of pure southern brook trout populations, and (4) use of southern Appalachian hatchery stocks in restoration efforts.

Download or read book The Effect of Episodic Stream Acidification on the Southern Appalachian Brook Trout Salvelinus Fontinalis written by Benjamin Corbin Moore and published by . This book was released on 2015 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meristic and Morphometric Analysis of the Systematic Status of Brook Trout Salvelinus Fontinalis Mitchill in the Great Smoky Mountains Park written by Denise Yvonne White and published by . This book was released on 1978 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survey of Brook Trout Salvelinus Fontinalis Population in the Upper Little Tennessee River Watershed Macon and Swain Counties North Carolina written by and published by . This book was released on 1993 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the months May--November 1992, as part of the Western North Carolina Alliance upper Little Tennessee River watershed survey, streams in the North Carolina portion (Macon and Swain Counties) of the watershed were surveyed for the presence of brook trout (Salvelinus fontinalis). The purposes of this survey were threefold: (1) To use this sensitive, pollution-intolerant species as an indicator organism for high quality waters. (2) To assist the North Carolina Wildlife Resources Commission, the US Forest Service, and private landowners in managing for and protecting this popular game fish. (3) To locate possible stocks of pure ''southern Appalachian strain'' brook trout. Research is currently underway at the University of Tennessee and Auburn University to determine whether there is in fact a distinct southem subspecies or race of S. fontinalis. This author is one of those who is inclined to believe there is.

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 Assessing Populations of Eastern Brook Trout Salvelinus Fontinalis Above and Below Waterfalls in Mountain Streams of Virginia written by and published by . This book was released on 2019 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenically driven factors, such as increasing temperature and sediment in valley streams, acidification of mountain streams, and the introduction of non-native trout, are restricting habitat suitable for healthy populations of eastern brook trout (Salvelinus fontinalis) throughout their native Appalachian range. Brook trout are important as predators of insects in mountain streams and as a favorite of anglers. It is crucial that remaining populations in sustainable habitats be identified and preserved. Waterfalls are geologic knickpoints preventing base-level lowering that create unique, stable landscapes above them, which may alleviate the temperature-productivity/acidity "habitat squeeze" for populations of brook trout and could serve as potentially ideal targets for conservation efforts despite being isolated. This study investigates brook trout occurrence above waterfalls in Virginia and compares brook trout populations found above waterfalls to those below them. One-hundred meter reaches above and below seven waterfalls in Virginia's George Washington and Jefferson National Forest were sampled for brook trout via 3-pass, block-netted, backpack electrofishing depletions. All brook trout were counted, weighed, and measured for fork length. The response variables are differences in 1) percent dominance, 2) population size, 3) biomass, and 4) length-weight index (Fulton's Condition Factor) between brook trout above and below waterfalls. Brook trout dominance (100 vs. 36.9%) is greater above than below waterfalls, but not significantly (p = 0.1003). We found abundance (26 vs.12 individuals per 100m) and overall biomass (885.3 vs 284.6 grams per 100m) of brook trout populations above waterfalls to be significantly greater than their below waterfall counterparts (p = 0.078 for both). We also found brook trout above waterfalls to have a higher condition factor (1.086g/cm3 vs 1.0636g/cm3) than those below waterfalls (p = 0.031). Lastly, we found populations above waterfalls where their occurrence was previously unknown. Despite being isolated, brook trout populations above waterfalls were just as if not more robust than those below and may be excellent targets for conservation.

Download or read book A Comparison of Life Histories of Brook Trout in Allopatric and Sympatric Populations in a Western North Carolina Stream written by Richard Scott Urwick and published by . This book was released on 1986 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification and Localization of H ATPase NHE2 and NHE3 in the Gills of the Southern Appalachian Brook Trout Salvelinus Fontinalis written by Brian Patrick Mikeworth and published by . This book was released on 2012 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Two Brook Trout Salvelinus Fontinalis Populations in Two Adjacent Streams written by Robert Alan Sadzinski and published by . This book was released on 1993 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: