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File ECMAScript program A Map of Maryland Wild Brook Trout Patches
The map provides a visual depiction of the distribution of Maryland's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of West Virginia Wild Brook Trout Patches
The map provides a visual depiction of the distribution of West Virginia's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of Virginia Wild Brook Trout Patches
The map provides a visual depiction of the distribution of Virginia's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of North Carolina Wild Brook Trout Patches
The map provides a visual depiction of the distribution of North Carolina's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of South Carolina Brook Trout Patches
The map provides a visual depiction of the distribution of South Carolina's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of Georgia Wild Brook Trout Patches
The map provides a visual depiction of the distribution of Georgia's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of Tennessee Wild Brook Trout Patches
The map provides a visual depiction of the distribution of Tennessee's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
File ECMAScript program A Map of Ohio Wild Brook Trout Patches
The map provides a visual depiction of the distribution of Ohio's wild Brook Trout patches.
Located in Science and Data / … / EBTJV State Maps and Resources / State Maps of Wild Brook Trout Patch Distribution
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 Science and Data / Brook Trout Related Publications
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