This Month at WFRC

Release Date:

This page contains WFRC "Highlights" reported March, 2019


USGS Scientist Participates in Event for Women in Science and Engineering

On March 6, 2019, USGS scientist Lisa Wetzel will participate in a networking dinner for Highline College’s Women in Science and Engineering Club in Des Moines, WA. The goal of the event is to recognize, support and encourage women pursuing studies in the engineering, physical and life sciences, math and technology fields. Wetzel was invited to attend as a research scientist representing USGS.

Contact: Lisa Wetzel, 206-526-2538,

USGS Scientists to Present at Oregon Chapter of the American Fisheries Society

USGS Western Fisheries Research Center (WFRC) scientists will be giving presentations and hosting a session at the 2019 annual meeting of the Oregon Chapter of the American Fisheries Society, March 4-8, 2019, in Bend, OR. The theme of the program is “At the nexus of science and restoration: What do we know?” The vision of the meeting is to foster an environment to share what we have learned through science and practice about restoration planning and design. Scientists Toby Kock and Amy Hansen will be moderating a session on predation, including a variety of presentations from colleagues Adam Pope, Ken Tiffan, and Nathan Banet. Presentations by WFRC scientists will also be featured in sessions on native fish and passive restoration. Dave Hewitt will give a presentation on the endangered sucker populations in the Upper Klamath Lake, Nathan Banet will talk about the waterbird predation of juvenile suckers in the Upper Klamath Basin. Ian Jezorek will be presenting a talk on juvenile salmonid monitoring in the White Salmon River following removal of Condit Dam. The Oregon Chapter of the American Fisheries Society is composed of over 400 fisheries and aquatic science professionals from federal, state, and tribal agencies, colleges and universities. For more information, visit

Contact: Eric Janney, 541-273-8689,


New Publications

New USGS Publication Reports the Complete Genome Sequences for Two Fish Paramyxoviruses

A new open-access publication by researchers at the USGS Western Fisheries Research Center reports the genome sequences of two index strains of Pacific salmon paramyxovirus isolated in 1982 and 1983 from adult salmon in Oregon. The isolates are most closely related to Atlantic salmon paramyxovirus, the type species of the genus Aquaparamyxovirus, but are sufficiently distinct to be considered two genotypes of a novel species. 

Contact: Jim Winton, 206-526-6587,

Winton, J.R., W.N. Batts, Powers, R.L., and M.K. Purcell. 2019. Complete genome sequences of the index isolates of two genotypes of pacific salmon paramyxovirus. Microbiology Resource Announcements 8(10): e01521-18. DOI: 10.1128/MRA.01521-18.


New USGS Report Assesses Causes of Mortality of Juvenile Lost River Suckers in Upper Klamath Lake, OR

The recovery of endangered Lost River suckers in the Upper Klamath Lake, OR, has been impeded because juveniles are not recruiting into adult spawning populations. Adult sucker populations spawn each spring, but mortality during the first summer is excessively high, and recruitment of juveniles into adult populations does not occur in most years. Causes of mortality are not understood, but poor water quality, parasites, disease, predation, and non-native species are suspected to contribute. In a recent study, scientists use large mesocosms to assess sucker mortality relative to water-quality conditions. By containing fish in mesocosms, scientists were able to track growth, health, and movement patterns, as well evaluate the causes of mortality. However, results were obscured by a number of factors and further investigations may be needed to better understand how water quality affects sucker survival.

Contact: Summer Burdick, 541-273-8689 ext. 209,

Hereford, D.M., C.M. Conway, S.M. Burdick, D.G. Elliott, T.M. Perry, A. Dolan-Caret, and A.C. Harris. 2019. Assessing causes of mortality for endangered juvenile Lost River suckers (Deltistes luxatus) in mesocosms in Upper Klamath Lake, south-central Oregon, 2016: U.S. Geological Survey Open-File Report 2019-1006, 80 p., DOI: 10.3133/ofr20191006.