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Showing 1 to 20 of 72 for “"brook trout"”.
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Effects of Culverts on Brook Trout Genetic Diversity
Brook trout (Salvelinus fontinalis) are a species of concern within their native range due to a historical loss of habitat, overfishing, and stocking of non-native salmonids. Road culverts have been recognized as an additional impediment to population persistence as movement between diverse habitat …
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RELATING METABOLIC PHENOTYPES TO MOVEMENT BEHAVIOR IN BROOK TROUT
<p>Brook trout movement-related life history strategies vary considerably and range from individuals that stay within the same 100 meters their entire life to individuals that are potamodromous or anadromous. Potential drivers of movement life histories have been the subject of much research in …
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Brook Trout Population Genetic Tools for Natural Barriers in Fragmented Subwatersheds
… tools as indicators of barrier effects on brook trout populations in fragmented subwatersheds. In chapter1, I tested the hypothesis that brook trout population genetic differentiation (FST) above and below barriers will differ in relation to barrier height and gradient. I also tested the …
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Fine sediment effects on brook trout egg and alevin survival in Virginia
… of fine sediments on early life stages of brook trout (Salvelinus fontinalis) in southern Appalachian streams is lacking. Information on survival to different stages of egg and alevin development could indicate critical timing of sediment impacts. This study was designed to determine the …
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Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis
Brook trout (Salvelinus fontinalis) raised from eggs under two photoperiod and two feeding regimes were tested for physiological changes preparatory for transition from freshwater to seawater. Size, age, growth rate, photoperiod, and diel rhythms were examined for possible influences on plasma …
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Spatial population dynamics of brook trout (Salvelinus fontinalis) in a central Appalachian watershed
I examined the spatial population dynamics of brook trout (Salvelinus fontinalis) in a central Appalachian watershed. The objectives of my research were: (1) identify factors that influence reproduction; (2) determine if factors that influence reproduction influence the distribution and abundance …
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Geographic distribution of southern- and northern-form brook trout populations in southwestern Virginia
The brook trout <i>Salvelinus fontinalis</i> is the only salmonid native to the southern Appalachian Mountains, and is distributed across eastern North America from Canada to Georgia. This species was once abundant in coldwater lakes and streams throughout its range, but environmental disturbances …
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The roles of brook trout and larval two -lined salamanders as predators in streams
<p>To test the effects of brook trout (Salvelinus fontinalis) on stream macroinvertebrates and salamander larvae, I conducted a large-scale manipulation of trout presence in the White Mountain National Forest, NH. I included 9 streams in the study: 3 with trout, 3 without fish, and 3 without fish …
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WHAT PREDICTS TERRESTRIAL INVERTEBRATE SUBSIDY USE BY BROOK TROUT (SALVELINUS FONTINALIS) IN HEADWATER STREAMS?
… invertebrates provide a critical subsidy for trout, including eastern brook trout (Salvelinus fontinalis), we have limited understanding of what causes input and use of these subsidies to vary among streams. Among the watershed characteristics that may influence input and use of terrestrial …
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WHAT PREDICTS TERRESTRIAL INVERTEBRATE SUBSIDY USE BY BROOK TROUT (SALVELINUS FONTINALIS) IN HEADWATER STREAMS?
… invertebrates provide a critical subsidy for trout, including eastern brook trout (Salvelinus fontinalis), we have limited understanding of what causes input and use of these subsidies to vary among streams. Among the watershed characteristics that may influence input and use of terrestrial …
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EFFECTS OF THERMAL STRESS ON SURVIVORSHIP OF BROOK TROUT (SALVELINUS FONTINALIS) IN ADIRONDACK LAKES
Brook trout (Salvelinus fontinalis) are common in waters ranging from the Appalachian Mountains to the Arctic Circle. These popular, coldwater sport fish face an uncertain fate in light of several climate change scenarios. Assessing the potential influence of variable temperature on brook trout …
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Movement, growth and mortality of brook trout within the Hazel River, Shenandoah National Park
Density and standing stock of brook trout within the Hazel River, Shenandoah National Park, declined sharply between 1982 and 1989. Most of the reduction occurred within the middle and lower reaches, where density of brook trout declined 66% and 920/0, respectively. This study characterized the …
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Modeling Water Temperatures and Brook Trout (Salvelinus fontinalis) Growth Potential Within a Complex Appalachian Riverscape
… effect cold and cool water fish species. Brook trout are an important game fish and highly vulnerable species in West Virginia. The primary objectives of this study were to (1) construct and validate models relating stream water temperature to long6term climate data for 18 sites and (2) …
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Survival, Growth, and Food Habits of Brook Trout Introduced Into An Eastern South Dakota Stream
Brook trout were introduced into the South Fork Yellow Bank River, an eastern South Dakota stream, on October 11, 1966. A supplemental brook trout plant was made on June 8, 1967. Survival for the initial plant from October, 1966 through October, 1967 was 2.4%. Survival for the supplemental plant …
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Seasonal habitat and movement ecology of adult brook trout in a northern Michigan headwater stream
<p>Brook trout (<em>Salvelinus fontinalis</em>) exhibit a wide variety of movement and habitat use strategies. Habitat needs change seasonally and ontogenetically, but the degree to which brook trout move among suitable habitats depends on life history strategy and stability in environmental …
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