Download or read book Seasonal Movement and Habitat Use of Eastern Brook Trout Salvelinus Fontinalis in a Mountain Stream in Northern NH written by Rachel E. D. Whitaker and published by . This book was released on 2011 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal Movement Patterns and Habitat Use of Brook Trout Salvelinus Fontinalis and Brown Trout Salmo Trutta in North Central Pennsylvania written by Lori A. Smith and published by . This book was released on 2014 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild Brook Trout Salvelinus Fontinalis Demographics and Movement in the Presence of Undersized Road Crossings in Headwater Streams in Central New Hampshire written by Tyson R. Morrill and published by . This book was released on 2019 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brook Trout Salvelinus Fontinalis Mitchell Movement Habitat Use and Potential Impacts of Forest Harvesting Activity in the Copper Lake Watershed Corner Brook Newfoundland written by James Harold McCarthy and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement and Habitat Use of Bonneville Cutthroat Trout Oncorhynchus Clarki Utah written by Ryan L. Lokteff and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Movement patterns and habitat use of Bonneville cutthroat trout (Oncorhynchus clarki Utah) in tributaries of the Logan River watershed are greatly affected by habitat alterations created by North American Beaver (Castor canadensis). Evaluation of cutthroat trout habitat use in these watersheds is also complicated by biotic interactions with invasive brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis). My objectives in this thesis were to 1.) Evaluate the passage of beaver dams by each trout species in the Temple Fork watershed and 2.) Evaluate the habitat use of cutthroat trout in the presence of brown trout and brook trout over a range of spatial scales. To address these objectives, 1381 trout were tagged with passive integrated transponder tags. Their locations were recorded using a combination of annual capture/recapture surveys, stationary in-stream antennas, and monthly continuous mobile antenna surveys. To address objective 1, sh were located above and below 22 beaver dams to establish whether sh passed dams and to identify downstream and upstream passage; 187 individual trout were observed making 481 passes of all 22 beaver dams. Native Bonneville cutthroat trout passed dams more frequently than both non-native brown trout and brook trout. It was determined that spawning timing affected seasonal changes in dam passage for each species. Physical characteristics of dams such as height and upstream location affected the passage of each species. Movement behaviors of each trout species were also evaluated to help ex- plain dam passage. These data suggest beaver dams are not acting as barriers to movement for cutthroat and brook trout but may be impeding the movements of invasive brown trout. To address objective 2, a hierarchical classification of stream habitat was created using the River Styles framework. The River Styles framework not only establishes a relationship between habitats at dierent scales, but also attempts to understand the processes that create and maintain those habitats. The location of each sh observation was associated with habitats at the stream, landscape unit, River Style, and geomorphic unit levels. Habitat use of each species of sh was evaluated at each spatial scale using all sh observations over the four-year study period. Hotspot locations, or locations used consistently by a species of sh consistently through time, were also evaluated across the entire study period and over each year. It was found that brook trout almost exclusively use the beaver ponds and beaver-altered habitats in Spawn Creek. Brown trout were not found in the upper- most parts of both Spawn Creek and Temple Fork. They were also found more than the other species in pools created by bedrock or man-made control features, suggesting that they select highly stable habitats. Cutthroat trout were found more than brown trout in beaver-altered habitats and lateral scour pools, suggesting that they select more dynamic, naturally occurring habitats.
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 Thermal Stratification of Dilute Lakes written by Carl L. Schofield and published by . This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Habitats of Atlantic Salmon Brook Trout Brown Trout and Rainbow Trout written by Darryl J. Calkins and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal Habitat Use and Movement by Columbia River Redband Trout in the Twin Lakes Washington written by Mike J. Biggs and published by . This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life History and Large scale Habitat Use of Brown Trout Salmo Trutta and Brook Trout Salvelinus Fontinalis written by and published by . This book was released on 2002 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Overwintering of Brook Trout Salvelinus Fontinalis in Sevenmile Creek Lake Superior Michigan USA written by and published by . This book was released on 2013 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winter salmonid studies are becoming more common due to the importance of this time period on survivorship and the growing concern of climate change. Fish condition, fish movement, aquatic invertebrate drift, and available habitat were assessed in Sevenmile Creek, located in Pictured Rocks National Lakeshore, during the winter months to determine the effects on brook trout. Mean fish condition was shown to decrease during winters for both 100+ mm BKT (12.7--17.6%) and sub-100 mm BKT (7.9--10.6%). Aquatic invertebrate drift decreased during winter, relative to summer, in both abundance (37.2-- 48.0%) and richness (25.8--28.8%). Riffles, runs and pools were assessed to determine habitat suitability for brook trout. During the summer months, water velocity and depth remained generally stable; however, during winter months, as ice formed, water depth fluctuated as much as 49.5% in pools and 16.5% in runs, and velocity varied up to 23.0% in runs, suggesting a decrease in available suitable habitat for brook trout in winter. Also, radio-telemetry data suggested post-spawn movements of brook trout that were followed by a period of relatively little movement through mid-winter. The results show that winter is a challenging period for brook trout in this Upper Peninsula stream and suggests that limitations in habitat availability may play a role in overwintering success.
Download or read book Autecology of Brook Trout salvelinus Fontinalis in Two Primitive Streams of Northern New Hampshire written by Earl E. Hoover and published by . This book was released on 193? with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement Patterns of Brook Trout in a Restored Coastal Stream System in Southern Massachusetts written by Erin L. Snook and published by . This book was released on 2014 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Populations of anadromous brook trout can be found from northern Canada into New England. It is believed that the extent of anadromy exhibited by coastal brook trout populations decreases with latitude, but the ecology and movements of the more southern populations are less studied. A 33-month acoustic telemetry study of anadromous brook trout (Salvelinus fontinalis) was conducted in a restored coastal stream and adjacent marine system in southeastern Massachusetts. Movement and migration patterns of 54 brook trout were investigated for individual differences and common features. Individuals exhibited a range of movement patterns. Some were more resident and only moved short distances, while others moved great distances covering the entire stretch of the stream (7.25 km) and moving into the marine environment. General Additive Mixed Models revealed that date was the major influence on brook trout movement between habitats and predicted peaks in movement in the spring and fall. Downstream movement peaked in the spring and in the fall, suggesting post-spawning feeding migration. Fish transitioned between habitats more often at new and full moons and when stream temperature was between 8 and 12 °C. Upstream transitions peaked as temperatures declined in winter 2011. Fifty percent of tagged brook trout were detected in the estuary during the study, suggesting that it is an important habitat for the population. In summer 2012, 14 tagged brook trout (20% of active tags) resided near one receiver at the head of the tide, which contained a thermal refugium in the form of a cold-water spring seep. Of the 84 tagged brook trout, 9.5% moved to the marine environment. Warm temperatures in saline Buttermilk Bay in the summer and cold temperatures in winter probably discourage some individuals from entering the marine environment. Compared to more northern coastal populations of brook trout, the Red Brook population appears to be less anadromous.
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 Thermal Stratification of Dilute Lakes Evaluation of Regulatory Processes and Biological Effects Before and After Base Addition Effects on Brook Trout Habitat and Growth written by and published by . This book was released on 1993 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: We address the significance of changes in summer thermal stratification patterns of Adirondack lakes affected by acidification to cold-water fish populations inhabiting these sensitive lakes. The brook trout (Salvelinus fontinalis) is the primary cold-water fish species indigenous to acid-sensitive lakes in the Adirondack region of northern New York State; the ability of these lakes to sustain this important sport species is highly dependent on the availability of adequate summer habitat, consisting of cool, well-oxygenated water. We hypothesized that acidification-induced reductions in the thermal stability of sensitive Adirondack lakes could lead to degradation of potential brook trout habitat. We also hypothesized, on the basis of energetic considerations, that brook trout growth and average size at age would be sensitive indicators of differences in the extent and availability of preferred summer habitat in lakes with different thermal structures. These hypotheses were addressed in this study by utilizing data available from previous lake liming studies in the Adirondack region, brook trout growth data from management studies in the region, and the extensive Adirondack Lake Survey Corporation (ALSC) data base. We compared brook trout growth among lakes with known thermal stratification patterns; analyzed temporal changes in the extent and availability of preferred brook trout habitat, resulting from changes in acid or base status of limed Adirondack lakes; and applied a bioenergetic growth model for sensitivity analysis of temperature effects on simulated growth of brook trout populations inhabiting lakes with different thermal structures.
Download or read book Seasonal Habitat Selection of Juvenile Brook Trout Salvelinus Fontinalis and Landlocked Atlantic Salmon Salmo Salar in Streams written by Patrick W. Bley and published by . This book was released on 1986 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brook Trout Salvelinus Fontinalis Mitchell Movement Habitat Use and Potential Impacts of Forest Harvesting Activity in the Copper Lake Watershed Corner Brook Newfoundland written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
