Tyler Grant is a Biologist with the USGS Columbia Environmental Research Center.
Multimedia
Images
Tyler Grant is a Biologist with the USGS Columbia Environmental Research Center.
Jenna Blanton is a biologist at the USGS Columbia Environmental Research Center.
Jenna Blanton is a biologist at the USGS Columbia Environmental Research Center.
A poster describing the habitat evaluation toolbox to support freshwater mussel restoration developed by CERC researchers.
A poster describing the habitat evaluation toolbox to support freshwater mussel restoration developed by CERC researchers.

Photo taken of a USGS scientist working on PFAS analyses in front of her mass spectrometer within a laboratory.
Photo taken of a USGS scientist working on PFAS analyses in front of her mass spectrometer within a laboratory.

A collage of "Environmental Science and Technology" publications that are related to CERC's bioinformatics PFAS research
A collage of "Environmental Science and Technology" publications that are related to CERC's bioinformatics PFAS research

Biosolids applied to soil in an agricultural setting are of interest to researchers at Columbia Environmental Research Center.
Biosolids applied to soil in an agricultural setting are of interest to researchers at Columbia Environmental Research Center.
Videos
Ammonia or ammonium? What’s the difference? In water, ammonia (NH3) and ammonium (NH4+) exist together in an equilibrium that depends on pH and temperature. As the temperature or pH rise, ammonia (NH3) becomes more abundant. This is important because ammonia is more toxic than ammonium.
Ammonia or ammonium? What’s the difference? In water, ammonia (NH3) and ammonium (NH4+) exist together in an equilibrium that depends on pH and temperature. As the temperature or pH rise, ammonia (NH3) becomes more abundant. This is important because ammonia is more toxic than ammonium.
This animated nitrogen fixation video provides an overview of natural and industrial nitrogen fixation, along with benefits, costs, trends, and effects on ecosystems.
This animated nitrogen fixation video provides an overview of natural and industrial nitrogen fixation, along with benefits, costs, trends, and effects on ecosystems.
This animated nitrogen fixation video provides an overview of natural and industrial nitrogen fixation, along with benefits, costs, trends, and effects on ecosystems.
This animated nitrogen fixation video provides an overview of natural and industrial nitrogen fixation, along with benefits, costs, trends, and effects on ecosystems.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
This animation of the biogeochemical nitrogen cycle illustrates the main steps of the cycle in air, water, and soils. The video explains and connects the many forms of nitrogen, such as ammonia, ammonium, hydroxylamine, nitrite, nitrate, nitrous oxide, and nitrogen dioxide, and explains the role of nitrate in nitric oxide signaling in the human body.
Scientists from the U.S. Geological Survey conducted a dye-trace assessment on May 5, 2021 along the Missouri River near Huntsdale, Missouri. The assessment helped scientists understand how larvae from the critically endangered pallid sturgeon drift downstream after hatching and how they find supportive habitat in the complex Missouri River.
Scientists from the U.S. Geological Survey conducted a dye-trace assessment on May 5, 2021 along the Missouri River near Huntsdale, Missouri. The assessment helped scientists understand how larvae from the critically endangered pallid sturgeon drift downstream after hatching and how they find supportive habitat in the complex Missouri River.