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File application/x-maker November 2014 NFH Board Meeting Book
This document contains materials associated with the National Fish Habitat Board's November 5 - 6, 2014 in-person meeting.
Located in About EBTJV / National Fish Habitat Board Meetings / 2014 NFH Board Meetings
File Ranking Site Vulnerability to Increasing Temperatures in Southern Appalachian Brook Trout Streams in VA: An Exposure-Sensitivity Approach - Trumbo et al. 2014
This publication describes an approach determining habitat vulnerability to climate change based on measures of sensitivity and exposure.
Located in Science and Data / Brook Trout Related Publications / Chesapeake Bay Brook Trout Management Strategy-References
File Octet Stream Removal of Two Dams in the Wetmore Run Watershed, PA_FY12 Project
As part of a plan to upgrade their public water supply to a non-dam alternative, the Borough of Galeton agreed to remove two dams and their associated impoundments. The dams were located on Wetmore Run and Right Branch of Wetmore Run, Potter County, PA. Both streams are classified as High Quality – Coldwater Fishery (HQ – CWF) by the Pennsylvania Department of Environmental Protection (PA DEP) and drain a predominantly forested watershed comprised of ~60% public land. The barriers blocked upstream Brook Trout passage to approximately 8.5 miles of headwater habitat, contributed to the elevation of instream temperatures, interrupted the natural flow regime, and negatively impacted ecosystem function. As a result of the dam removals, almost 8.5 miles of headwater habitat was reconnected to the rest of the upper Pine Creek Watershed, which contains several intact eastern Brook Trout populations.
Located in Projects / Project Completion Reports
File SEACAP: Southeast Aquatic Connectivity Assessment Project: Assessing the ecological impact of dams on Southeastern rivers
The Southeast Aquatic Connectivity Assessment Project (SEACAP) grew out of and builds on the conceptual framework of the Chesapeake Fish Passage Prioritization Project and the Northeast Aquatic Connectivity Project.
Located in Science and Data / Brook Trout Related Publications
File The temperature–productivity squeeze: constraints on brook trout growth along an Appalachian river continuum
We tested the hypothesis that brook trout growth rates are controlled by a complex interaction of food availability, water temperature, and competitor density. We quantified trout diet, growth, and consumption in small headwater tributaries characterized as cold with low food and high trout density, larger tributaries characterized as cold with moderate food and moderate trout density, and large main stems characterized as warm with high food and low trout density. Brook trout consumption was highest in the main stem where diets shifted from insects in headwaters to fishes and crayfish in larger streams. Despite highwater temperatures, trout growth rates also were consistently highest in the main stem, likely due to competitively dominant trout monopolizing thermal refugia. Temporal changes in trout density had a direct negative effect on brook trout growth rates. Our results suggest that competition for food constrains brook trout growth in small streams, but access to thermal refugia in productive main stem habitats enables dominant trout to supplement growth at a watershed scale. Brook trout conservation in this region should seek to relieve the ‘‘temperature–productivity squeeze,’’ whereby brook trout productivity is constrained by access to habitats that provide both suitable water temperature and sufficient prey.
Located in Science and Data / Brook Trout Related Publications