Perry, Stephen

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
September 10, 2014 Steering Committee Meeting Document: This document provides background material on each of the agenda items discussed during the EBTJV Steering Committee Meeting.
Located in Groups / … / Conference Calls / 2014 Steering Committee Conference Call Summaries
September 15, 2020 Steering Committee Meeting Summary: This document summarizes the business items discussed during the Steering Committee's conference call held on September 15, 2020.
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September 17, 2019 EBTJV Steering Committee Teleconference Summary: This document describes the Steering Committee discussions that occurred during its September 17, 2019 teleconference.
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September 17, 2019 Steering Committee Teleconference Agenda: This documents contains the agenda items to be discussed during the Steering Committee's teleconference scheduled for 9/17/19.
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September 18, 2018 EBTJV Steering Committee Conference Call Summary: This document is a draft summary of the EBTJV Steering Committee's September 18, 2018 conference call.
Located in Groups / … / 2018 Steering Committee Conference Call Summaries / December 18, 2018 EBTJV SC Conference Call
September 18, 2018 EBTJV SC Conference Call: This folder contains items related to the EBTJV Steering Committee's agenda for its September 18, 2018 conference call.
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September 19, 2017 EBTJV Steering Committee Conference Call Agenda: Draft agenda for the September 19, 2017 SC conference call.
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September 19, 2017 EBTJV SC Conference Call: This folder contains documents associated with the Steering Committee's conference call.
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September 20, 2016 Conference Call Documents: This folder contains documents associated with the September 20, 2016 Steering Committee's conference call.
Located in Groups / … / Conference Calls / 2016 Steering Committee Conference Call Summaries

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