This Month at WFRC

Release Date:

This page contains WFRC "Highlights" reported September, 2019


USGS Hosts Workshop on Aquatic Invasive Species: On September 24-25, USGS and Washington State University hosted a workshop focused on aquatic invasive species (AIS). The workshop was conducted over two days at Western Fisheries Research Center, Columbia River Research Laboratory in Cook, WA and at the Washington State University's campus in Vancouver, WA . The workshop was designed to build tribal capacity to address aquatic invasive species issues in the Columbia River Basin. The first day was hosted by USGS, focusing on effects of AIS, early detection and rapid response, detection and monitoring, and sampling methodology. The second day was led by collaborators from Washington State University and focused on food webs, education, and sample processing. The workshop included U.S. Fish and Wildlife Service, Washington State University, USGS, and a number of Columbia River Inter-tribal Commission members from Nez Perce Tribe, the Confederated Tribes of the Umatilla Indian Reservation, the Confederated Tribes of the Warm Springs Reservation of Oregon, and the Confederated Tribes and Bands of the Yakama Nation.

Contact Tim Counihan,

USGS Co-hosts Workshop on Proliferative Kidney Disease: On September 18, 2019, the Western Fisheries Research Center and Northern Rocky Mountain Science Center co-hosted a workshop on proliferative kidney disease (PKD) in Boise, Idaho that brought together fish health specialists, managers, researchers and other stakeholders to discuss PKD and the causative agent of Tetracapsuloides bryosalmonae and the disease caused by this myxozoan parasite (PKD).  The workshop included structured presentations and discussions to exchange information on the management and control of this parasite in Western North America. The meeting was held in conjunction the semi-annual meeting of the Pacific Northwest Fish Health Projection Committee (PNFHPC). The PNFHPC is an organization of technical and policy representatives from conservation agencies, tribes, and commercial fish producers from the Pacific Northwest.

Contact Maureen Purcell,

USGS at International Columbia River Transboundary Conference:  On September 11-15, USGS scientist Toby Kock attended the 6th International Columbia River Transboundary Conference in Kimberly, BC. Sponsored by the Columbia Basin Trust and the Northwest Power and Conservation Council, the conference is intended to help connect and collaborate on the future of the Columbia River. The conference themes and agenda included the interests and issues of First Nations and US Native American Tribes, as well as art, culture and history as it relates to the Columbia River.

Contact Toby Kock,

New Publications

New Article on Replacing Hydropower with Solar: Dam removal is becoming an increasingly common tool to restore rivers. But what would it take to replace lost electricity from removed hydroelectric dams with solar power? In a recent article of Nature Sustainability, USGS scientist Jeff Duda discusses a thought experiment presented by Waldman and colleagues that explores if electricity lost by removing every hydroelectric dam in the conterminous United States could be replaced with industrial-scale solar farms within the footprint of the former reservoirs exposed following dam removal.

Duda, J.J. 2019. Replacing hydropower with solar. Nature Sustainability, News and Views. DOI:

Contact: Jeff Duda,

USGS Evaluates Reservoir Survival of Juvenile Chinook Salmon in the Willamette River Basin: Scientists from the Western Fisheries Research Center recently completed a report from a 2018 field study designed to estimate survival of juvenile Chinook salmon in the Willamette River basin, Oregon. A similar study was completed in 2017. Researchers released more than 160,000 Chinook salmon fry into the reservoir in 2018 and sampling was conducted monthly during May–October to collect fish which were genetically marked. Survival during April–October was found to be very low (6% or less) in 2018. Predation and copepod infection were the most likely sources of mortality.

Kock, T.J., R.W. Perry, G.S. Hansen, P.V. Haner, A.C. Pope, J.M. Plumb, K.M. Cogliati, and A.C. Hansen. 2019. Juvenile Chinook salmon (Oncorhynchus tshawytscha) survival in Lookout Point Reservoir, Oregon, 2018: U.S. Geological Survey Open-File Report 2019–1097, 41 p.,

Contact: Toby Kock,