EBTJV

Wood Additions into the Sheepscot, Narraguagus, Machias Watersheds, Maine: In 2007, Project SHARE and the Department of Marine Resources Bureau of Sea-Run Fisheries and Habitat and private land owners undertook a "chop and drop" large wood addition project. Wood was added to streams with the intent to increase habitat complexity and salmonid survival. This project expands the large wood treatment locations to include the Sheepscot drainage, along with treatment locations on the Machias, East Machias and Narraguagus River drainages. It adds nine additional large wood treatment sites enhancing approximately 4 miles of stream for brook trout.
Located in Projects / 2006 - 2018 Projects / 2010 Projects
Thorn Creek Aquatic Passage Project, Pendelton County, West Virginia: This project will remove the 9 identified fish passage barriers in a 50 square mile wild brook trout watershed in Thorn Creek of the South Branch of the Potomac. These impediments block passage in one or both directions, and serve to sustain an outward migration of brook trout into waters which, currently, are lethally warm for brook trout in typical summer conditions. Removal of the blockages will open over 25 miles of perennial stream to brook trout, improving the long term security of the population. Thorn Creek serves as a brook trout nursery for the upper South Branch of the Potomac.
Located in Projects / 2006 - 2018 Projects / 2010 Projects
Expanding Brook Trout in Willow Creek, Pennsylvania: This project will expand suitable habitat in Willow Creek located within Blandon, Berks County, Pennsylvania. Willow Creek is a coldwater fishery that supports one of the most productive wild brook trout populations in the state. This project will restore fish habitat and stream bank stabilization by implementing in-stream habitat enhancement devices in over 5000 feet of the creek. Additionally, over 6 acres of floodplain will be re-vegetated with native trees and shrubs. Local stocking efforts will be shifted to other nearby streams. The project also include an outreach component. Kiosks will be constructed to commemorate the effort and educate future generations. Pamphlets will be distributed to interested citizens.
Located in Projects / 2006 - 2018 Projects / 2010 Projects
Hathaway Brook Dam Removal and Stream Restoration in MA: The primary goal of this project is to restore natural stream conditions and stream connectivity within Hathaway Brook, thereby enhancing habitat value for existing aquatic species. One barrier will be removed, restoring access to 3,000 feet of stream. The project will reestablish continuous flow and natural sediment transport regimes, and restore geomorphic processes within the channel.
Located in Projects / 2006 - 2018 Projects / 2010 Projects
Big Run Restoration, West Virginia: The Big Run project is part of Trout Unlimited’s Home Rivers Initiative Potomac Headwaters Restoration Project. The stream has suffered habitat degradation in the riparian zone, stream banks and instream due to long-term livestock grazing. There currently exists a lifetime grazing allotment on that portion of the Monongahela National Forest that supports Big Run. The Forest Service, Trout Unlimited and others have teamed up to work with the allotment holder to fence the riparian zone, create crossings and alternative water sources to completely remove the cattle from the stream. Over time, riparian reforestation will stabilize banks and provide vital shade during warm summer months. This is the initial project on Big Run. Resources have already been secured to move down stream on the Forest and on to private property. The project will include informational and educational kiosks and trails that will improve access for anglers and hikers. The project will restore 45 acres of riparian forest and enhance 1.5 miles of stream habitat.
Located in Projects / 2006 - 2018 Projects / 2006 Projects
Dynamics and regulation of the southern brook trout (Salvelinus fontinalis) population in an Appalachian stream: 1. We used information theoretic statistics [Akaike’s Information Criterion (AIC)] and regression analysis in a multiple hypothesis testing approach to assess the processes capable of explaining long-term demographic variation in a lightly exploited brook trout population in Ball Creek, NC. We sampled a 100-m-long second-order site during both spring and autumn 1991–2004, using three-pass electrofishing. 2. Principle component analysis indicated that the site had lower average velocity, greater amounts of depositional substrata and lower amount of erosional substrata during the 1999–2002 drought than in non-drought years. In addition, drought years had lower flows, and lower variation in flows, than non-drought years. 3. Both young-of-the-year (YOY) and adult densities varied by an order of magnitude during the study. AIC analysis conducted on regressions of per capita rate of increase versus various population and habitat parameters for the population, adults and YOY, for both spring and autumn data sets, indicated that simple density dependence almost always was the only interpretable model with Akaike weights (wi) ranging from 0.262 to 0.836. 4. Growth analyses yielded more variable results, with simple density dependence being the only interpretable model for both adult spring data (wi = 0.999) and YOY autumn data (wi = 0.905), and positive density dependence (wi = 0.636) and simple density independence (wi = 0.241) representing interpretable models for spring YOY data. 5. We detected a significant stock–recruitment relationship between both spring and autumn densities of adults in year t and autumn YOY density in year t + 1. Finally, spring YOY density was positively correlated with both autumn YOY density and spring mean YOY standard length (SL), suggesting that processes affecting recruitment show residual effects at least in the first year of life. This population appears to be regulated primarily by density dependent processes, although high flows also negatively affected mean SLs of YOY.
Located in Science and Data / Brook Trout Related Publications
When are Genetic Methods Useful for Estimating Contemporary Abundance and Detecting Population Trends - Tallmon et al. 2010: This study assessed the ability of a linkage disequilibrium estimator of effective population size and a simple capture-recapture estimator of abundance to quantify the size and trend of stable or declining populations, using simulated Wright-Fisher populations.
Located in Science and Data / Brook Trout Related Publications / Chesapeake Bay Brook Trout Management Strategy-References
Sensitivity and Vulnerability of Brook Trout Populations to Climate Change: Predicting future brook trout Salvelinus fontinalis distributions at the population scale under various climate scenarios is of interest to the Eastern Brook Trout Joint Venture. Previous larger scale models have been useful in highlighting the potential threat; however, the predicted air and water temperature errors associated with these models makes predictions of the persistence of individual brook trout populations problematic. We directly measured paired air and water temperatures in watersheds (N = 77) containing reproducing populations of brook trout in Virginia. We found that paired air and water temperature relationships are highly variable among patches but are a useful dataset to classify sensitivity and vulnerability of existing brook trout patches. We developed a classification system using sensitivity and vulnerability metrics that classified sampled brook trout habitats into four categories (High Sensitivity- High Vulnerability (51.9% ); High Sensitivity-Low Vulnerability (10.4 % ); Low Sensitivity-High Vulnerability (7.8 % ); Low Sensitivity-Low Vulnerability (29.9 % ). Our direct measurement approach identified potential refugia for brook trout at lower elevations and with higher air temperatures than previous larger scale modeling efforts. Our sensitivity and vulnerability groupings should be useful for managers making investment decisions in protecting and restoring brook trout.
Located in Science and Data / Brook Trout Related Publications
Copper Creek In-Stream Habitat Restoration Project: This project improved riparian zones, water quality, appropriate sediment flows and restoring physical habitat for multiple listed aquatic species in the Copper Creek watershed, within the Upper Tennessee River Basin. (Photo: The low water bridge that was removed and replaced with a new bridge that spans the river.)
Located in Funded Projects / SARP Projects W2B
Valley River Watershed Habitat Restoration Project: Located in Funded Projects / SARP Projects W2B

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