Images

Justin Greer is a Computational Biologist at the Western Fisheries Research Center. He conducts research on the effects of environmental stressors on the health of aquatic populations. Current research focuses on the effects of stormwater pollutants on salmonid health and strategies to reduce toxic stormwater inputs.

This is a photo of Ellie Dalsky, a biological technician at the Western Fisheries Research Center.

These turtles are considered juveniles until they reach about 5 inches long. In this part of their range turtles remain juveniles and usually do not begin to reproduce until they are over ten years old.  

Photo taken at Lookout Point Reservoir, Oregon. 

We glue transmitters onto their upper shells (called their carapace) using non-permanent epoxy. We will track these turtles until the transmitter battery dies (about 2 years) and soon after that the epoxy degrades, and the transmitter will fall off the turtle without harming the turtle or it's shell. 

Northwestern pond turtles are sexually dimorphic (females and males look different). One way to tell female and male turtles apart is that they often have different color patterns on their face and throats. Females have a more speckled throat, while males throats tend to be more solidly white/yellow.

Turtle found in the spring coming out of brumation. It is still covered in mud from being buried in the ground all winter.  They can brumate up to several months! 

Photo taken at Lookout Point Reservoir, Oregon. 

Rainfall mobilizes roadway contaminants that flow from storm drains into aquatic habitats. Photo taken in the Pacific Northeast

Dorothy Chase began her career at Western Fisheries Research Center in the Fish Health section where her research focused on Bacterial Kidney Disease (BKD) in salmonids. She is now a part of the Ecology section, focusing on research that uses environmental DNA to detect and quantify fish species, fish pathogens and invasive aquatic species in environmental samples.

Jake Gregg manages the research aquaculture system at the Western Fisheries Research Center's Marrowstone Marine Field Station, which produces Specific Pathogen Free marine fish.

This is Randi M. Bowman, a fish biologist with the Western Fisheries Research Center

Sarah Flores collecting snails from the marshes of Upper Klamath Lake. At the Western Fisheries Research Center, scientists are conducting research on parasites in Upper Klamath Lake, Klamath Falls, OR.

This is a photo of fish pathogenic cercariae collected from intermediate snail hosts. The Western Fisheries Research Center (WFRC) is working to determine the extent of the effects of these parasitic organisms on suckers in Klamath Falls, OR. Top: Diplostomum gavium; Bottom: Bolbophorus sp.

Local snail screening set up in Klamath Falls, OR at the Bureau of Reclamation facility. Five snails per tank on the right and cups with one snail on the left.

Sarah Flores presenting her lab's work at the 2025 International Symposium on Fish Parasites in Mérida Yucatán, Mexico. Sarah Flores works with the Western Fisheries Research Center in Seattle, WA to help suckers in the Upper Klamath Lake in Klamath Falls, OR.

In this photo a USGS Biological Science Technician Brittany Graham is surgically implanting an acoustic telemetry tag into a juvenile salmon on the banks of the lower Shasta River. The Western Fisheries Research Center (WFRC) uses fish with acoustic transmitters to track fish movements and estimate survival. This information provides water managers with ro

This photo shows the California Department of Fish and Wilflife’s screw trap on the lower Shasta River, where Western Fisheries Research Center (WFRC) scientists surgically implant acoustic telemetry tags and passive integrated transponder tags into juvenil Chinook salmon collected at this site.

Collin Smith and Georgia Martin are inserting passive integrated transponders in juvenile Chinook Salmon at Fall Creek Hatchery, California to track their movements. Data are collected for each fish, including length, weight, and the individual number of the inserted tag.

This is a landscape photo of the Klamath River with mountains on either side of the photo. The Western Fisheries Research Center is researching the effects of flow management before and after dam removal on juvenile Chinook salmon survival to the ocean. 

Brown treesnake (Boiga irregularis) researchers tour a Guam Power Authority power substation to see how energy infrastructure is vulnerable to outages due to snakes.

TopoBuilder export of a map using the 7.5-Minute OnDemand application. The map displays the Mount Rainier East quadrangle in Washington State. 

This is an image of a stormwater drain in Seattle. Dangerous tire particles, such as 6PPD-quinone, can land up in water bodies through drains such as the one depicted above and can cause deaths in a variety of fish, including salmon.