Publications

Aug, 2026

Journal

Connecting ambient toxicity testing with community-level responses of benthic macroinvertebrates in an impacted stream in East Tennessee, USA

Single-species laboratory toxicity tests are a standard tool for evaluating potential impairment of freshwater systems; however, it remains uncertain how well they reflect community-level impacts in natural environments. This study presents a multi-decadal dataset (2005-2025) pairing ambient toxicity testing with macroinvertebrate surveys along Bear Creek on the Oak Ridge…

Aug, 2026

Journal

Seasonal variation in methane ebullition in a temperate hydropower reservoir impacts annualized estimates

Estimates of ebullitive methane (CH4) emissions from reservoirs are highly uncertain, often based on spatial and temporal upscaling from a limited number of sampling sites and periods. While some of these estimates may adjust for seasonal variation in temperature, they rarely account for drawdown and the resulting changes in site depth and the areal extent of the reservoir…

Feb, 2026

Journal

Degassing fluxes in a temperate hydropower reservoir predictable by deep-water dissolved oxygen but highly sensitive to discharge variability

Hydropower reservoirs contribute to methane (CH4) and carbon dioxide (CO2) emissions, like all aquatic ecosystems. Unique to hydropower reservoirs are degassing emissions that occur when deep-water intakes move water with high CH4 and CO2 concentrations through turbines, leading to the release of these gases. However, few studies from hydropower reservoirs have measured se…

Dec, 2025

ORNL Report

Y-12 National Security Complex Biological Monitoring and Abatement Program—2024 Calendar Year Report