Skip to content. | Skip to navigation

Sections
Personal tools
You are here: Home / Practitioners (individuals) / Perry, Stephen

Search results

368 items matching your search terms.
Filter the results.
Item type


















New items since



Sort by relevance · date (newest first) · alphabetically
File Distribution, Status and Perturbations to Brook Trout within the eastern United States - Hudy et al. 2005
This report summarizes the distribution and status of self-sustaining populations of Brook Trout across their native range in the eastern U.S.
Located in Science and Data / Brook Trout Related Publications / Chesapeake Bay Brook Trout Management Strategy-References
Donate Now to Support Brook Trout Conservation
Supporters of Brook Trout conservation can make a tax-deductible donation that will assist the Eastern Brook Trout Joint Venture achieve its mission.
Located in News & Events / News Inbox
File Draft Chesapeake Bay Brook Trout Management Strategy_2-26-15
This document is a working draft of the Brook Trout management strategy being developed for the Chesapeake Bay watershed.
Located in Science and Data / Brook Trout Related Publications / Chesapeake Bay Brook Trout Management Strategy-References
File Dynamically Downscaled Climate Simulations over North America - Hostetler et al. 2011
This publication describes an array of high resolution simulations of present and future climate over North America.
Located in Science and Data / Brook Trout Related Publications / Chesapeake Bay Brook Trout Management Strategy-References
File 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
East Fork Greenbrier River/Poca Run Large Woody Material Project, Monongahela National Forest, West Virginia, Monitoring Report - 2015
The East Fork Greenbrier River/Poca Run Large Woody Material (LWM) project was designed to treat a total of 16 stream sites with LWM structures distributed along ¾ miles of stream and floodplain areas on the Monongahela National Forest.
Located in News & Events / News Inbox
Reports and tools associated with this TU project.
Located in Science and Data / Data and Brook Trout Decision Support Tools / TU Eastern Brook Trout Conservation Portfolio, Range-wide Assessment and Focal Area Tools
File SIS package Eastern Brook Trout Conservation Portfolio, Range-wide Habitat Integrity and Future Security Assessment, and Focal Area Risk and Opportunity Analysis
Trout Unlimited has developed three conservation planning products to help identify strategic conservation opportunities and evaluate potential projects within the eastern range of brook trout (Salvelinus fontinalis or EBT). Each product gathers and interprets spatial data related to the pattern of EBT populations, their habitats, and threats to those habitats. The basic unit of analysis and summary for all three products is the Eastern Brook Trout Joint Venture’s EBT population patch.
Located in Science and Data / Data and Brook Trout Decision Support Tools / TU Eastern Brook Trout Conservation Portfolio, Range-wide Assessment and Focal Area Tools
File Eastern Brook Trout Range-wide Conservation Portfolio and Focal Area Risk and Opportunity Analysis Presentation to EBTJV
This file consists of the slides used during the EBTJV's webinar review of TU's EBT Conservation Portfolio and Focal Area Risk and Opportunity Analysis.
Located in Science and Data / Data and Brook Trout Decision Support Tools / TU Eastern Brook Trout Conservation Portfolio, Range-wide Assessment and Focal Area Tools
File Eastern Brook Trout Roadmap to Conservation (2018)
This document summarizes the EBTJV's strategies for conserving wild Brook Trout.
Located in Science and Data / EBTJV Reports