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Seasonal streamflow extremes are key drivers of Brook Trout young-of-the-year abundance
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Based on counts of Brook Trout (Salvelinus fontinalis) collected over 28 yr at 115 sites in Shenandoah National Park, we developed mixed-effects models to (1) assess how well extreme streamflow, as compared to mean flows and total precipitation, can explain young-of-the-year (YOY) abundance, (2) identify potential nonlinear relationships between seasonal environmental covariates and abundance using nonlinear generalized additive mixed models, and (3) explore likely impacts of expected future weather and streamflow conditions.
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Science and Data
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Brook Trout Related Publications
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See our videos from the recent EBTJV annual meeting!
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in April 2022 EBTJV had a membership meeting at NCTC. Videos are now on YouTube.
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News & Events
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News Inbox
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SENSITIVITY AND VULNERABILITY OF BROOK TROUT POPULATIONS TO CLIMATE CHANGE
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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.
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Science and Data
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Brook Trout Related Publications
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September 21, 2024 SC meeting files
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files for the Sept 21, 2024 SC meeting
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Groups
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…
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Conference Calls
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2024 Steering Committee Meeting Files
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Shade Your Stream (NC)
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A guide for landowners to restore healthy streamside vegetation on their land.
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The Story of Wild Brook Trout
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Landowner Resources
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SHARE_Temps
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Thermal data for FY24 application from Project SHARE, mainstem Narraguagus River, Maine
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Projects
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2024 Applications to EBTJV
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Helicopter-assisted Large Wood Additions, Narraguagus River, TWP 34, ME
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Sharing from CBF: How restoring West Virginia's native brook trout also restores water quality, and the critical partnerships making this important work happen
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Brook Trout work in West Virginia helps the Chesapeake Bay
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News & Events
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News Inbox
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Sharing from NPS: Researchers see startling brook trout declines in Shenandoah streams
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Land use and pollution used to be brook trout’s biggest problems. But our latest research shows that being a cold-water fish in a warming world might be its greatest challenge yet. By Jeb Wofford and Evan Childress
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News & Events
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Sharing from Trout Unlimited (and NFWF): recent funding for brook trout projects
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NFWF funding for Chesapeake Bay brook trout.
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News & Events
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Sign up for EBTJV e-newsletter and updates
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Keep posted about EBTJV news and funding opportunities.
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