Travis S Schmidt, Ph.D.
Travis Schmidt is a Research Ecologist for the Wyoming-Montana Water Science Center.
Travis' aims are to better understand how ecosystems respond to natural and human cause disturbances. He researches the effects of metals, pesticides, and other contaminants on aquatic and riparian ecological communities.
Professional Experience
2020 to present, Research Ecologist, Wyoming-Montana Water Science Center, Helena, MT
2009-2020, Research Ecologist, Colorado Water Science Center, Fort Collins, CO
2007-2009, Mendenhall Fellow, Central Mineral and Environmental Science Center, Denver, CO
2003-2007, USDA Fellow, Colorado State University, Fort Collins, CO
2001-2003, Ecotoxicologist, ELM Consulting, Chicago, IL
1999-2001, Research Assistant, Virginia Tech, Blacksburg, VA
1998-1999, Research Assistant, Aquatic Ecology Lab, The Ohio State University, Columbus, OH
1998-1999, Department of Biology, Notre Dame University, South Bend, IN
Education and Certifications
Ph.D. Ecotoxicology, Fish, Wildlife, and Conservation Biology, Colorado State University, 2007
M.S. Aquatic Toxicology, Biology Department, Virginia Tech, 2001
B.S. Ecology, Biology Department, The Pennsylvania State University, 1998
Science and Products
Assessing the effects of mining on the Transboundary Koocanusa Reservoir
Evidence of selenium transport from Elk River Valley, Canada to the Columbia River
Growth of coal mining operations in the Elk River Valley linked to increasing transport of selenium, nitrate, and sulfate into Lake Koocanusa
Assessment of Mercury and Selenium Accumulation in Upper Colorado River Basin Fish
Analyses of contaminant effects in freshwater systems: synthesizing abiotic and biotic stream datasets for long-term ecological research
Potential Toxicity of Multiple Metals Associated with PGE Deposits
Imidacloprid concentrations and trends in United States Rivers, 2013-2022 Imidacloprid concentrations and trends in United States Rivers, 2013-2022
Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023 Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023
Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017 Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017
Elemental and biological characteristics of riparian spiders collected along streams and tributaries in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026) Elemental and biological characteristics of riparian spiders collected along streams and tributaries in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026)
Elemental concentrations in biofilm and bed sediment collected from streams in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026) Elemental concentrations in biofilm and bed sediment collected from streams in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026)
Laboratory analyses for fish tissue samples from Lake Koocanusa and Kootenai River Basin, Montana, 2022 (ver. 2.0, May 2025) Laboratory analyses for fish tissue samples from Lake Koocanusa and Kootenai River Basin, Montana, 2022 (ver. 2.0, May 2025)
Sampling and analysis plan for the water-quality monitoring program in Lake Koocanusa and upper Kootenai River, Montana, water years 2022–23 Sampling and analysis plan for the water-quality monitoring program in Lake Koocanusa and upper Kootenai River, Montana, water years 2022–23
Selenium and mercury tissue partitioning and trophodynamics in the Lake Koocanusa (USA–Canada) fish community Selenium and mercury tissue partitioning and trophodynamics in the Lake Koocanusa (USA–Canada) fish community
Imidacloprid in United States rivers, 2013–2022: Persistent presence and emerging chronic hazard Imidacloprid in United States rivers, 2013–2022: Persistent presence and emerging chronic hazard
Non-native prey availability and over-compensatory density dependence drive population dynamics of a native fish predator Non-native prey availability and over-compensatory density dependence drive population dynamics of a native fish predator
Diverging fish biodiversity trends in cold and warm rivers and streams Diverging fish biodiversity trends in cold and warm rivers and streams
Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Assessing the effects of mining on the Transboundary Koocanusa Reservoir
Evidence of selenium transport from Elk River Valley, Canada to the Columbia River
Growth of coal mining operations in the Elk River Valley linked to increasing transport of selenium, nitrate, and sulfate into Lake Koocanusa
Assessment of Mercury and Selenium Accumulation in Upper Colorado River Basin Fish
Analyses of contaminant effects in freshwater systems: synthesizing abiotic and biotic stream datasets for long-term ecological research
Potential Toxicity of Multiple Metals Associated with PGE Deposits
Imidacloprid concentrations and trends in United States Rivers, 2013-2022 Imidacloprid concentrations and trends in United States Rivers, 2013-2022
Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023 Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023
Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017 Analyte concentrations and stable isotopes in fish tissue collected across the upper Colorado River Basin in 2016 and 2017
Elemental and biological characteristics of riparian spiders collected along streams and tributaries in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026) Elemental and biological characteristics of riparian spiders collected along streams and tributaries in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026)
Elemental concentrations in biofilm and bed sediment collected from streams in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026) Elemental concentrations in biofilm and bed sediment collected from streams in the Clark Fork Basin, Montana, July 2023 (ver. 1.1, March 2026)
Laboratory analyses for fish tissue samples from Lake Koocanusa and Kootenai River Basin, Montana, 2022 (ver. 2.0, May 2025) Laboratory analyses for fish tissue samples from Lake Koocanusa and Kootenai River Basin, Montana, 2022 (ver. 2.0, May 2025)
Sampling and analysis plan for the water-quality monitoring program in Lake Koocanusa and upper Kootenai River, Montana, water years 2022–23 Sampling and analysis plan for the water-quality monitoring program in Lake Koocanusa and upper Kootenai River, Montana, water years 2022–23
Selenium and mercury tissue partitioning and trophodynamics in the Lake Koocanusa (USA–Canada) fish community Selenium and mercury tissue partitioning and trophodynamics in the Lake Koocanusa (USA–Canada) fish community
Imidacloprid in United States rivers, 2013–2022: Persistent presence and emerging chronic hazard Imidacloprid in United States rivers, 2013–2022: Persistent presence and emerging chronic hazard
Non-native prey availability and over-compensatory density dependence drive population dynamics of a native fish predator Non-native prey availability and over-compensatory density dependence drive population dynamics of a native fish predator
Diverging fish biodiversity trends in cold and warm rivers and streams Diverging fish biodiversity trends in cold and warm rivers and streams
Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.