Perry, Stephen

EBTJV Partnership Meeting June 12-13, 2013: This folder contains all materials from the EBTJV partnership meeting held on June 12-13, 2013 at the Appalachian Laboratory - University of Maryland.
Located in About EBTJV / EBTJV Partners / EBTJV Partnership Meetings
EBTJV Range-wide Habitat Goals and Objectives: This document contains the EBTJV's current range-wide habitat goals and objectives.
Located in Projects / … / 2024 Project Application Information / EBTJV Range-wide Habitat Goals, Objectives, and Key Conservation Actions
EBTJV Range-wide Habitat Goals and Objectives: This document contains the EBTJV's current range-wide habitat goals and objectives.
Located in Projects / … / 2023 Project Application Information / EBTJV Range-wide Habitat Goals, Objectives, and Key Conservation Actions
EBTJV Range-wide Habitat Goals, Objectives, and Key Conservation Actions: This folder contains documents that describe the EBTJV's current range-wide habitat goals and objectives, as well as its key conservation actions.
Located in Projects / EBTJV Funding Opportunities / 2025 Project Application Information
EBTJV Range-wide Habitat Goals, Objectives, and Key Conservation Actions: This folder contains documents that describe the EBTJV's current range-wide habitat goals and objectives, as well as its key conservation actions.
Located in Projects / EBTJV Funding Opportunities / 2024 Project Application Information
EBTJV Range-wide Habitat Goals, Objectives, and Key Conservation Actions: This folder contains documents that describe the EBTJV's current range-wide habitat goals and objectives, as well as its key conservation actions.
Located in Projects / EBTJV Funding Opportunities / 2023 Project Application Information
EBTJV Salmonid Catchment Assessment and Habitat Patch Layers: Extending, standardizing, and automating the salmonid status assessment is a fundamental goal of the EBTJV. This document provides a step-by-step description of these procedures, as well as providing examples for their applications.
Located in Science and Data / EBTJV Reports
EBTJV September 28-30, 2015 Meeting Agenda: This documents contains the meeting agenda items.
Located in About EBTJV / … / EBTJV Partnership Meetings / EBTJV Meeting September 28-30, 2015
EBTJV Steering Committee Meeting, September 29, 2015: This documents contains the agenda items discussed during the EBTJV's Steering Committee Meeting held September 29, 2015.
Located in About EBTJV / … / EBTJV Partnership Meetings / EBTJV Meeting September 28-30, 2015
Efficacy of Environmental DNA to Detect and Quantify Brook Trout Populations in Headwater Streams of the Adirondack Mountains, New York: Environmental DNA (eDNA) analysis is rapidly evolving as a tool for monitoring the distributions of aquatic species. Detection of species’ populations in streams may be challenging because the persistence time for intact DNA fragments is unknown and because eDNA is diluted and dispersed by dynamic hydrological processes. During 2015, the DNA of Brook Trout Salvelinus fontinalis was analyzed from water samples collected at 40 streams across the Adirondack region of upstate New York, where Brook Trout populations were recently quantified. Study objectives were to evaluate different sampling methods and the ability of eDNA to accurately predict the presence and abundance of resident Brook Trout populations. Results from three-pass electrofishing surveys indicated that Brook Trout were absent from 10 sites and were present in low (<100 fish/0.1 ha), moderate (100–300 fish/0.1 ha), and high (>300 fish/0.1 ha) densities at 9, 11, and 10 sites, respectively. The eDNA results correctly predicted the presence and confirmed the absence of Brook Trout at 85.0–92.5% of the study sites; eDNA also explained 44% of the variability in Brook Trout population density and 24% of the variability in biomass. These findings indicate that eDNA surveys will enable researchers to effectively characterize the presence and abundance of Brook Trout and other species’ populations in headwater streams across the Adirondack region and elsewhere.
Located in Science and Data / Brook Trout Related Publications

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