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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 Resources / Brook Trout Conservation Decision Support Tools / 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 Resources / Brook Trout Conservation Decision Support Tools / Eastern Brook Trout Conservation Portfolio, Range-wide Assessment and Focal Area Tools
File 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 Resources / Brook Trout Related Publications
File Final Ranking of Brook Trout Conservation Project Proposals - FY17
This document contains the final ranking of Brook Trout conservation project proposals submitted to the EBTJV for FY FWS-NFHAP funding considerations.
Located in Groups / / 2016 Steering Committee Conference Call Summaries / December 7, 2016 EBTJV Steering Committee Meeting Documents
File EBTJV Steering Committee Members - January 2017
A list of EBTJV Steering Committee members as of 1-9-17.
Located in Groups / Steering Committee / Steering Committee Members