Northwest Fisheries Science Center

NWFSC Staff Directory

NWFSC Publications for Randy Absolon

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41 record(s) found.

Absolon, R. F., B. P. Sandford. 2016. Passage evaluation of Spring Creek Hatchery subyearling Chinook salmon at Bonneville Dam Second Powerhouse, 2015. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Gilbreath, L. G., R. F. Absolon, B. P. Sandford, D. Ballinger. 2014. Passage evaluation of Spring Creek Hatchery subyearling Chinook salmon at Bonneville Dam Second Powerhouse, 2013. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Absolon, R. F., E. E. Hockersmith, G. A. Axel, B. J. Burke, K. E. Frick, B. P. Sandford. 2010. Passage behavior and survival of radio-tagged subyearling Chinook salmon at Lower Monumental Dam, 2008. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Axel, G. A., E. E. Hockersmith, B. J. Burke, K. E. Frick, B. P. Sandford, W. D. Muir, R. F. Absolon. 2010. Passage behavior and survival of radio-tagged yearling and subyearling Chinook salmon and juvenile steelhead at Ice Harbor Dam, 2008. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Axel, G. A., E. E. Hockersmith, B. J. Burke, K. E. Frick, B. P. Sandford, W. D. Muir, R. F. Absolon, N. D. Dumdei, J. J. Lamb, M. G. Nesbit. 2010. Passage behavior and survival of radio-tagged yearling and subyearling Chinook salmon and juvenile steelhead at Ice Harbor Dam, 2009. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Dumdei, N. D., R. F. Absolon, E. E. Hockersmith, G. A. Axel, M. G. Nesbit, J. J. Lamb, B. J. Burke, K. E. Frick, B. P. Sandford. 2010. Passage behavior and survival of radio-tagged subyearling chinook salmon at Lower Monumental Dam, 2009. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Hockersmith, E. E., G. A. Axel, R. F. Absolon, B. J. Burke, K. E. Frick, B. P. Sandford, D. A. Ogden. 2010. Passage behavior and survival for radio-tagged yearling Chinook salmon and juvenile steelhead at Lower Monumental Dam, 2008. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Hockersmith, E. E., G. A. Axel, R. F. Absolon, B. J. Burke, K. E. Frick, J. J. Lamb, M. G. Nesbit, N. D. Dumdei, B. P. Sandford. 2010. Passage behavior and survival for radio-tagged yearling Chinook salmon and juvenile steelhead at Lower Monumental Dam, 2009. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., E. E. Hockersmith, G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford. 2008. Passage behavior and survival for radio-tagged subyearling Chinook salmon at Lower Monumental Dam, 2006. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., E. E. Hockersmith, G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford. 2008. Passage behavior and survival for radio-tagged subyearling Chinook salmon at Lower Monumental Dam, 2007. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Hockersmith, E. E., G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford, R. F. Absolon. 2008. Passage behavior and survival for radio-tagged yearling Chinook salmon and juvenile steelhead at Lower Monumental Dam, 2006. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Hockersmith, E. E., G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford, R. F. Absolon. 2008. Passage behavior and survival for radio-tagged yearling Chinook salmon and juvenile steelhead at Lower Monumental Dam, 2007. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Ogden, D. A., E. E. Hockersmith, G. A. Axel, B. J. Burke, K. E. Frick, R. F. Absolon, B. P. Sandford. 2008. Passage behavior and survival for river-run subyearling Chinook salmon at Ice Harbor Dam, 2006. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Ogden, D. A., E. E. Hockersmith, G. A. Axel, B. J. Burke, K. E. Frick, R. F. Absolon, B. P. Sandford. 2008. Passage behavior and survival for river-run subyearling Chinook salmon at Ice Harbor Dam, 2007. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., E. E. Hockersmith, G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford. 2007. Passage behavior and survival for radio-tagged subyearling Chinook salmon at Lower Monumental Dam, 2005. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Ferguson, J. W., R. F. Absolon, T. J. Carlson, B. P. Sandford. 2006. The next link will exit from NWFSC web site Evidence of delayed mortality in juvenile Pacific salmon passing through turbines at Columbia River dams. Transactions of the American Fisheries Society, 135(1):139-150.Go to metadata icon

Hockersmith, E. E., G. A. Axel, D. A. Ogden, B. J. Burke, K. E. Frick, B. P. Sandford, R. F. Absolon. 2006. Spillbay survival for radio-tagged yearling Chinook salmon at Lower Monumental Dam, 2005. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., M. H. Gessel, B. P. Sandford, G. M. Matthews. 2005. Evaluation of fish condition with prototype vertical barrier screens at McNary Dam, 2004. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., B. P. Sandford, M. B. Eppard, D. A. Brege, K. W. McIntyre, E. E. Hockersmith, G. M. Matthews. 2005. Relative survival estimates for PIT-tagged juvenile chinook salmon passing through turbines, collection channels, and spillways at Ice Harbor Dam, 2003. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Brege, D. A., L. G. Gilbreath, R. F. Absolon, B. P. Sandford, G. M. Matthews. 2005. Studies to evaluate the effectiveness of extended-length screens at John Day Dam, 2004. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Ferguson, J. W., G. M. Matthews, R. L. McComas, R. F. Absolon, D. A. Brege, M. H. Gessel, L. G. Gilbreath. 2005. Passage of adult and juvenile salmonids through federal Columbia River power system dams. U.S. Dept. of Commerce, NOAA Tech. Memo., NMFS-NWFSC-64.Go to metadata icon

Brege, D. A., R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2004. Evaluation of extended-length submersible bar screens at John Day Dam, 2002. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Absolon, R. F., D. A. Brege. 2003. The next link will exit from NWFSC web site Canister for releasing marked fish at depth in hydroelectric dam gatewells and forebays. North American Journal of Fisheries Management, 23(2):605-610.Go to metadata icon

Absolon, R. F., M. B. Eppard, B. P. Sandford, G. A. Axel, E. E. Hockersmith, J. W. Ferguson. 2003. Effects of turbines operating at two different discharge levels on survival and condition of yearling Chinook salmon at McNary Dam, 2002. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., E. M. Dawley, B. P. Sandford, J. W. Ferguson, D. A. Brege. 2002. Relative survival of juvenile salmon passing through the spillway of The Dalles Dam, 1997-2000. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Monk, B. H., R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2002. Evaluation of intake modifications at Bonneville Dam Second Powerhouse, 2001. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Brege, D. A., J. W. Ferguson, R. F. Absolon, B. P. Sandford. 2001. Evaluation of extended-length bypass screens at John Day Dam, 1999. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Brege, D. A., M. H. Gessel, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2001. Studies to evaluate the effectiveness of outlet flow-control and debris control devices at McNary and Little Goose Dams, 1998. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Absolon, R. F., D. A. Brege, J. W. Ferguson. 2000. Post-construction evaluation of the juvenile bypass system at John Day Dam, 1999. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Absolon, R. F., B. P. Sandford, D. B. Dey. 2000. Post-construction evaluation of the new juvenile bypass system and guidance screen modifications at John Day Dam, 1998. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Dawley, E. M., L. G. Gilbreath, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2000a. Relative survival of juvenile salmon passing through the spillway and the ice and trash sluiceway of The Dalles Dam, 1998. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Dawley, E. M., C. J. Ebel, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2000b. Relative survival of juvenile salmon passing through the spillway of The Dalles Dam, 1999. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Absolon, R. F., E. M. Dawley, B. P. Sandford. 1999. Changes in gas bubble disease signs of migrating juvenile salmonids experimentally exposed to supersaturated gasses, 1997. Report of the National Marine Fisheries Service to the Bonneville Power Administration. Portland, Oregon.Go to metadata icon

Brege, D. A., R. F. Absolon, B. P. Sandford, D. B. Dey. 1998. Studies to evaluate the effectiveness of vertical barrier screens and outlet flow-control devices at McNary Dam, 1997. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Walla Walla, Washington.Go to metadata icon

Brege, D. A., R. F. Absolon, B. P. Sandford, D. B. Dey. 1997. Studies to evaluate the effectiveness of extended-length screens at John Day Dam, 1996. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Brege, D. A., R. F. Absolon, B. P. Sandford, D. B. Dey. 1997. Studies to evaluate the effectiveness of extended-length screens at The Dalles Dam, 1995. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Monk, B. H., R. F. Absolon, E. M. Dawley. 1997. Changes in gas bubble disease signs and survival of migrating juvenile salmonids experimentally exposed to supersaturated gasses. Report of the National Marine Fisheries Service to the Bonneville Power Administration. Portland, Oregon.Go to metadata icon

Brege, D. A., R. F. Absolon, R. J. Graves. 1996. The next link will exit from NWFSC web site Seasonal and diel passage of juvenile salmonids at John Day Dam on the Columbia River. North American Journal of Fisheries Management, 16(3):659-665.Go to metadata icon

Muir, W. D., S. G. Smith, E. E. Hockersmith, S. Achord, R. F. Absolon, P. A. Ocker, M. B. Eppard, T. E. Ruehle, J. G. Williams, R. N. Iwamoto. 1996. Survival estimates for the passage of yearling chinook salmon and steelhead through Snake River dams and reservoirs, 1995. Report of the National Marine Fisheries Service to the Bonneville Power Administration. Portland, Oregon.Go to metadata icon

Absolon, R. F., D. A. Brege, B. P. Sandford, D. B. Dey. 1995. Studies to evaluate the effectiveness of extended-length screens at The Dalles Dam, 1994. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon

Brege, D. A., R. F. Absolon, B. P. Sandford, D. B. Dey. 1994. Studies to evaluate the effectiveness of extended-length screens at The Dalles Dam, 1993. Report of the National Marine Fisheries Service to the U.S. Army Corps of Engineers. Portland, Oregon.Go to metadata icon