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Scientific Investigations Report 2013–5194 

Prepared in cooperation with the Bureau of Reclamation 

Simulation and Validation of Larval Sucker Dispersal and Retention through the Restored Williamson River Delta and Upper Klamath Lake System, Oregon 

By Tamara M. Wood, Heather A. Hendrixson, Douglas F. Markle, Charles S. Erdman, Summer M. Burdick, and Craig M. Ellsworth

Figures

Figure 1. Fixed larval catch sites after restoration of the Williamson River Delta, Upper Klamath and Agency Lakes, Oregon, 2009. 

Figure 2. Screen captures showing shoreline configuration in the vicinity of the Williamson River Delta, Upper Klamath and Agency Lakes, Oregon, 2009.  

Figure 3. Relation between standard length and age as determined from 112 sucker larvae collected from Upper Klamath Lake, Oregon, 2009. 

Figure 4. Screen captures showing simulated current vectors on May 19, 2009, at 0300 hours; and June 1, 2009, at 0300 hours in the Williamson River Delta, Upper Klamath Lake, Oregon.  

Figure 5. Number of particles remaining in the particle-tracking simulation as a function of time, after applying a 5 percent per day mortality rate, comparing dispersal scenarios (scenario B is indistinguishable from scenario C and is not shown); swim speeds; lake elevations; and shoreline configurations, Upper Klamath Lake, Oregon, May–July 2009. 

Figure 6. Screen captures showing particle simulations of swimming scenario A at midnight on June 4, 2009, for three elevation scenarios in Upper Klamath Lake, Oregon 

Figure 7. Length distribution of larval suckers in nets and of simulated particles at pop net sites in Upper Klamath Lake, Oregon, May–July 2009.

Figure 8. Length distribution of larval suckers in nets and of simulated particles at plankton net sites in Upper Klamath Lake, Oregon, May–July 2009.  

Figure 9. Length distribution of larval suckers in nets and of simulated particles at larval trawl sites in Upper Klamath Lake, Oregon, May–July 2009. 

First posted January 31, 2014

Report PDF (2.5 MB)

Appendix A

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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