This is an infographic of the life cycle of the parasite, Diplostomum gavium. This parasite affects the Sucker fish in the Upper Klamath Lake. Upper Klamath Lake is home to large colonies of birds and an abundance of snails and fish, making it a haven for trematodes who are reliant on all three for their life cycle. Birds host adult flukes in their intestines.
Jan Lovy, Ph.D. (Former Employee)
Science and Products
The Science of Suckers: What’s driving population declines in the Klamath River basin?
USGS and its partners are working tirelessly to monitor suckers and understand why they are disappearing from lakes and streams in the Klamath River Basin
AquaDePTH-Aquatic Disease and Pathogen Repository
The Aquatic Disease and Pathogen Repository (AquaDePTH) will be a public-facing national repository to support biosurveillance of aquatic animal diseases and pathogens. By collating historically published data, plus new aquatic pathogen and disease information, stakeholders will be able monitor fish kill and aquatic pathogen trends spatially and temporally in freshwater and marine environments...
Life Cycle of Parasite Diplostomum gavium
This is an infographic of the life cycle of the parasite, Diplostomum gavium. This parasite affects the Sucker fish in the Upper Klamath Lake. Upper Klamath Lake is home to large colonies of birds and an abundance of snails and fish, making it a haven for trematodes who are reliant on all three for their life cycle. Birds host adult flukes in their intestines.
Fish Pathogenic Cercariae from Snail Hosts
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.
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.
Sarah Flores Presentation at the 2025 International Symposium on Fish Parasites
Sarah Flores Presentation at the 2025 International Symposium on Fish ParasitesSarah 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.
Sarah Flores Presentation at the 2025 International Symposium on Fish Parasites
Sarah Flores Presentation at the 2025 International Symposium on Fish ParasitesSarah 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.
Scientist Collects Snails in Upper Klamath Lake, OR
Scientist Collects Snails in Upper Klamath Lake, ORSarah 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.
Scientist Collects Snails in Upper Klamath Lake, OR
Scientist Collects Snails in Upper Klamath Lake, ORSarah 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.
Screening Snails for Parasites in Klamath Falls, OR
Screening Snails for Parasites in Klamath Falls, ORLocal 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.
Screening Snails for Parasites in Klamath Falls, OR
Screening Snails for Parasites in Klamath Falls, ORLocal 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.
Laboratory study on parasites
Sophie Hall, a research technician with the Western Fisheries Research Center, setting up parasite shedding experiments with snails collected from the Upper Klamath Lake, OR.
Sophie Hall, a research technician with the Western Fisheries Research Center, setting up parasite shedding experiments with snails collected from the Upper Klamath Lake, OR.
Snails in Laboratory
Snails collected from Upper Klamath Lake are being used in experiments in the Western Fisheries Research Center’s Seattle Laboratory to study the impacts of eye flukes on the health of endangered suckers.
Snails collected from Upper Klamath Lake are being used in experiments in the Western Fisheries Research Center’s Seattle Laboratory to study the impacts of eye flukes on the health of endangered suckers.
Science and Products
The Science of Suckers: What’s driving population declines in the Klamath River basin?
USGS and its partners are working tirelessly to monitor suckers and understand why they are disappearing from lakes and streams in the Klamath River Basin
AquaDePTH-Aquatic Disease and Pathogen Repository
The Aquatic Disease and Pathogen Repository (AquaDePTH) will be a public-facing national repository to support biosurveillance of aquatic animal diseases and pathogens. By collating historically published data, plus new aquatic pathogen and disease information, stakeholders will be able monitor fish kill and aquatic pathogen trends spatially and temporally in freshwater and marine environments...
Life Cycle of Parasite Diplostomum gavium
This is an infographic of the life cycle of the parasite, Diplostomum gavium. This parasite affects the Sucker fish in the Upper Klamath Lake. Upper Klamath Lake is home to large colonies of birds and an abundance of snails and fish, making it a haven for trematodes who are reliant on all three for their life cycle. Birds host adult flukes in their intestines.
This is an infographic of the life cycle of the parasite, Diplostomum gavium. This parasite affects the Sucker fish in the Upper Klamath Lake. Upper Klamath Lake is home to large colonies of birds and an abundance of snails and fish, making it a haven for trematodes who are reliant on all three for their life cycle. Birds host adult flukes in their intestines.
Fish Pathogenic Cercariae from Snail Hosts
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.
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.
Sarah Flores Presentation at the 2025 International Symposium on Fish Parasites
Sarah Flores Presentation at the 2025 International Symposium on Fish ParasitesSarah 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.
Sarah Flores Presentation at the 2025 International Symposium on Fish Parasites
Sarah Flores Presentation at the 2025 International Symposium on Fish ParasitesSarah 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.
Scientist Collects Snails in Upper Klamath Lake, OR
Scientist Collects Snails in Upper Klamath Lake, ORSarah 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.
Scientist Collects Snails in Upper Klamath Lake, OR
Scientist Collects Snails in Upper Klamath Lake, ORSarah 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.
Screening Snails for Parasites in Klamath Falls, OR
Screening Snails for Parasites in Klamath Falls, ORLocal 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.
Screening Snails for Parasites in Klamath Falls, OR
Screening Snails for Parasites in Klamath Falls, ORLocal 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.
Laboratory study on parasites
Sophie Hall, a research technician with the Western Fisheries Research Center, setting up parasite shedding experiments with snails collected from the Upper Klamath Lake, OR.
Sophie Hall, a research technician with the Western Fisheries Research Center, setting up parasite shedding experiments with snails collected from the Upper Klamath Lake, OR.
Snails in Laboratory
Snails collected from Upper Klamath Lake are being used in experiments in the Western Fisheries Research Center’s Seattle Laboratory to study the impacts of eye flukes on the health of endangered suckers.
Snails collected from Upper Klamath Lake are being used in experiments in the Western Fisheries Research Center’s Seattle Laboratory to study the impacts of eye flukes on the health of endangered suckers.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government