Veronika A. Kocen
Veronika Kocen is a Biologist and the USGS Selenium Research Laboratory Manager for the USGS Water Resources Mission Area.
Veronika began her federal service through an AmeriCorps internship with the Bureau of Land Management at the Piedras Blancas Light Station in San Simeon, California. During the COVID-19 pandemic, she continued to live and work onsite at the historic light station before joining the U.S. Geological Survey (USGS) as a biologist in 2020.
As a term employee, Veronika successfully guided the USGS Selenium Research Laboratory through multiple personnel changes and laboratory relocations while consistently upholding the high standards of quality assurance and data integrity for which the USGS is recognized. In 2024, she became a permanent employee and has since expanded the Laboratory’s capabilities at its new location at Moffett Field, overseeing the integration of new instrumentation and mentoring student contractors from local universities.
Her research focuses on the movement of selenium and other trace metals, including mercury, through complex food webs, the interactions between selenium and mercury, and the development of analytical methods involving laser ablation ICP-MS.
Professional Experience
2024-Present: Biologist and lab manager in the USGS Selenium Research Laboratory at Moffett Field, CA
2020-2024: Term employee as a biologist in the USGS Selenium Research Laboratory at Menlo Park, CA
2019-2020: Interpretive and Wildlife Conservation Intern at the Piedras Blancas Light Station, managed by the Bureau of Land Management in San Simeon, CA
2018 – Conducted research on Lumholtz’s Tree Kangaroos in the Wet Tropics of Queensland Australia, a World Heritage site, and presented at the 2nd European Symposium on Tree Kangaroos
Education and Certifications
Master of Arts in Biology from Project Dragonfly at Miami University, Oxford, Ohio in partnership with the San Diego Zoo Wildlife Alliance
Bachelor of Arts in Biology and Environmental Studies from Gonzaga University in Spokane, Washington
Abstracts and Presentations
Society of Environmental Toxicology and Chemistry (SETAC), Fort Worth, TX
“State of the Science Selenium Method Development at the U.S. Geological Survey Moffett Field
Selenium Laboratory” by Veronika Alexis Kocen, Evangelos Kakouros and
Benjamin Shawn Linhoff
Science and Products
Veronika Kocen's publications appear below.
Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana
Bioaccumulation and trophic transfer of selenium in a large oligotrophic river Bioaccumulation and trophic transfer of selenium in a large oligotrophic river
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.
Veronika Kocen's data releases appear below.
Selenium in water, sediment, periphyton, benthic invertebrate and fish tissues from the Kootenai River, Idaho and Montana Selenium in water, sediment, periphyton, benthic invertebrate and fish tissues from the Kootenai River, Idaho and Montana
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)
Fish Tissue Analysis Results, Koocanusa Reservoir, Montana, 2021 Fish Tissue Analysis Results, Koocanusa Reservoir, Montana, 2021
Science and Products
Veronika Kocen's publications appear below.
Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana
Bioaccumulation and trophic transfer of selenium in a large oligotrophic river Bioaccumulation and trophic transfer of selenium in a large oligotrophic river
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.
Veronika Kocen's data releases appear below.