Journal Article

In press

Enders, E. C., M. H. Gessel, J. G. Williams. In press. The behavioural response of downstream migrating fall Chinook salmon smolt to accelerating flows. Canadian Journal of Fisheries and Aquatic Sciences.

2008

Kemp, P. S., M. H. Gessel, B. P. Sandford, J. G. Williams. 2008. Fish behaviour and passage efficiency: lessons from North America. Hydrobiologia, (609)205-217.

2006

Kemp, P. S., M. H. Gessel, B. P. Sandford, J. G. Williams. 2006. The behaviour of Pacific salmonid smolts during passage over two experimental weirs under light and dark conditions. River research and applications, 22:429-440.

2005

Ferguson, J. W., R. F. Absolon, T. Carlson, B. P. Sandford. 2005. Evidence of delayed mortality in juvenile Pacific salmon passing through turbines at Columbia River dams. Transactions of the American Fisheries Society, 135:139-150.

Kemp, P. S., M. H. Gessel, J. G. Williams. 2005. Fine-scale behavioral responses of Pacific salmonid smolts as they encounter divergence and acceleration of flow. Transactions of the American Fisheries Society, 134:390-398.

Kemp, P. S., M. H. Gessel, J. G. Williams. 2005. Seaward migrating subyearling chinook salmon avoid overhead cover. Journal of Fish Biology, 67:1381-1391.

2003

Absolon, R. F., D. A. Brege. 2003. Canister for releasing marked fish at depth in hydroelectric dam gatewells and forebays. North American Journal of Fisheries Management, 23:605-610.

1996

Brege, D. A., R. F. Absolon, R. J. Graves. 1996. 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.

1991

Gessel, M. H., J. G. Williams, D. A. Brege, R. Krcma, D. R. Chambers. 1991. Juvenile salmonid guidance at the Bonneville Dam Second Powerhouse, Columbia River, 1983-1989. North American Journal of Fisheries Management, 11:400-412.

1985

Gessel, M. H., W. Farr, C. Long. 1985. Underwater separation of juvenile salmonids by size. Marine Fisheries Review, 47(3):38-42.

Section

1994

Williams, J. G., M. H. Gessel. 1994. Fish diversion and screening devices: Is there a relationship to fish behavior? Pages 135-140 in Proceedings of the Symposium on Fish Passage Policy and Technology, 1-2 September 1993, Portland, OR. Am. Fish Soc., Bioeng. Sec, Bethesda, MD.

1988

Williams, J. G., M. H. Gessel, D. R. Chambers. 1988. Juvenile salmonid bypass system research at Bonneville Second Powerhouse, Columbia River. Pages [1-41]-[1-54] in Proceedings: Fish protection at steam and hydroelectric power plants. Electric Power Research Institute, Palo Alto, CA.

Contract Report

2005

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 by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers. Walla Walla District, Contract W68SBV20655422, vi, 23 p.

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 by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers. Walla Walla District, Contract W68SBV92844866, v, 58 p.

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 by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers. Portland District, Contract W66QKZ90392273, vi, 40 p.

Gessel, M. H., R. L. McComas, G. M. Matthews. 2005. Studies to establish biological design criteria for fish passage facilities: separation by size of juvenile salmonids using a high-velocity flume at Ice Harbor Dam in 2004. Report by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers. Walla Walla District, Contract W68SBV00358064, vi, 18 p.

2004

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 by Report of Research by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers, Portland District, vi, 53 p.

Gessel, M. H., B. P. Sandford, J. W. Ferguson. 2004. Studies to establish biological design criteria for fish passage facilities: prototype testing of a cylindrical dewatering screen at McNary Dam 2001-2002. Report of Research by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers Walla Walla District, vi, 19 p p. (PDF | Video files index page)

Monk, B. H., B. P. Sandford, D. A. Brege, J. W. Ferguson. 2004. Evaluation of turbine intake modifications at Bonneville Dam second powerhouse, 2002. Report of Research by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers, Portland, OR, vi, 48 p p.

2003

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 Research by Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to the U.S. Army Corps of Engineers, Walla Walla District, v, 20 p.

2001

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 to the U.S. Army Corps of Engineers, Portland District, Contract W66QKZ90392273, 21 p. plus appendices.

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 to the U.S. Army Corps of Engineers, Walla Walla District, Contract E86970083, 16 p. plus appendices.

Gessel, M. H., J. W. Ferguson. 2001. Evaluation of a high-velocity induction/release system for testing turbine-related injuries to juvenile salmonids at hydroelectric projects. Report to the U.S. Army Corps of Engineers, Walla Walla District, Contract W68SBV82443526, 7 p. plus appendix.

McComas, R. L., M. H. Gessel, B. P. Sandford, D. B. Dey. 2001. Biological design criteria for juvenile fish passage, 1998: high-velocity flume development and improved wet-separator efficiency. Report to the U.S. Army Corps of Engineers, Walla Walla District, Contract E86910060, 33 p. plus appendix.

2000

Absolon, R. F., D. A. Brege, J. W. Ferguson. 2000. Post-construction evaluation of the juvenile bypass system at John Day Dam, 1999. Report to the U.S. Army Corps of Engineers, Contract W66QKZ80354028, 14 p.

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 to the U.S. Army Corps of Engineers, Contract W66QKZ80354028, 34 p. plus appendices.

Dawley, E. M., L. G. Gilbreath, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2000. Relative survival of juvenile salmon passing through the spillway and the ice trash sluiceway of The Dalles Dam, 1998. Report to the U.S. Army Corps of Engineers, Contract MIPR E96970020, W66QKZ82167243 and W66QKZ83437725, 47 p. plus appendices.

Dawley, E. M., C. J. Ebel, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 2000. Relative survival of juvenile salmon passing through the spillway of The Dalles Dam, 1999. Report to the U.S. Army Corps of Engineers, Portland District, Contract W66QKZ83437725, 42 p. plus appendices.

Gessel, M. H., B. H. Monk, B. P. Sandford, J. W. Ferguson. 2000. Evaluation of a chamfered perforated plate for extended-length bar screens at Little Goose and McNary Dams, 1999. Report to the U.S. Army Corps of Engineers, Walla Walla District, Contract W68SBV80210987, 10 p. plus appendix.

Gessel, M. H., B. P. Sandford, J. W. Ferguson. 2000. Evaluation of the effectiveness of an orifice shelter at McNary Dam, Columbia River, 1999. Report to the U.S. Army Corps of Engineers, Walla Walla District, Contract W68SBV80210987, 10 p. plus appendix.

McComas, R. L., M. H. Gessel, B. P. Sandford, D. B. Dey, D. M. Katz. 2000. Biological design criteria for improved wet-separator efficiency and high-velocity flume development, 1997. Report to the U.S. Army Corps of Engineers, Walla Walla District, Contract E86910060, 22 p. plus appendices.

1999

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 to the Bonneville Power Administration, Contract 96-BI-93892, 16 p.

Brege, D. A., M. H. Gessel, R. F. Absolon, B. P. Sandford, J. W. Ferguson. 1999. Studies to evaluate the effectiveness of outlet flow-control and debris control devices at McNary and Little Goose Dams, 1998. Report to the U.S. Army Corps of Engineers, Contract E86970083, 20 p. plus appendices.

Monk, B. H., M. H. Gessel, J. W. Ferguson. 1999. An evaluation of the biological database for improving fish guidance efficiency at Bonneville Dam Second Powerhouse. Report to the U.S. Army Corps of Engineers, Contract W66QKZ90059456, 62 p.

1998

McComas, R. L., M. H. Gessel, B. P. Sandford, D. B. Dey. 1998. Studies to establish biological design criteria for wet separators, 1996. Report to the U.S. Army Corps of Engineers, Contract E86910060, 44 p.

1997

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 to the U.S. Army Corps of Engineers, Contract E96960028, 41 p.

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 to the U.S. Army Corps of Engineers, Contract E96930030, 24 p. plus appendices.

Gessel, M. H., B. P. Sandford, D. B. Dey. 1997. Post-construction evaluation of the juvenile salmonid bypass system at Ice Harbor Dam, 1996. Report to the U.S. Army Corps of Engineers, Contract E86960098, 20 p.

1996

Gessel, M. H., B. P. Sandford, D. B. Dey. 1996. Studies to evaluate the effectiveness of extended-length screens at Little Goose Dam, 1995. Annual Report to the U.S. Army Corps of Engineers, Delivery Order E86920164, 17 p.

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, J. R. Skalski. 1996. Survival estimates for the passage of the yearling chinook salmon and steelhead through Snake River dams and reservoirs, 1995. Report to the Bonneville Power Administration, Contract E86940119, 88 p. plus appendices.

Williams, J. G., M. H. Gessel, B. P. Sandford, J. J. Vella. 1996. Evaluation of factors affecting juvenile chinook salmon fish guidance efficiency. Report to the U.S. Army Corps of Engineers, Project No. E86910059, 35 p.

1995

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 to the U.S. Army Corps of Engineers, Contract E96930030, 69 p.

Gessel, M. H., B. P. Sandford, D. B. Dey. 1995. Studies to evaluate the effectiveness of extended-length screens at Little Goose Dam, 1994. Report to the U.S. Army Corps of Engineers, Contract E86920164, 33 p.

1994

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 to the U.S. Army Corps of Engineers, Contract E96930030, 72 p.

Gessel, M. H., B. P. Sandford, D. B. Dey. 1994. Studies to evaluate the effectiveness of extended-length screens at Little Goose Dam, 1993. Report to the U.S. Army Corps of Engineers, Delivery Order E86920164, 42 p.

1993

Gessel, M. H., W. D. Muir, B. P. Sandford, D. B. Dey. 1993. Evaluation of the new juvenile salmonid bypass system at Lower Monumental Dam, 1992. Report to the U.S. Army Corps of Engineers, Contract E86920053, 23 p.

McComas, R. L., D. A. Brege, W. D. Muir, B. P. Sandford, D. B. Dey. 1993. Studies to determine the effectiveness of extended-length submersible bar screens at McNary Dam, 1992. Report to the U.S. Army Corp of Engineers, Delivery Order E86910060, 85 p.

1990

Gessel, M. H., D. A. Brege, B. H. Monk, J. G. Williams. 1990. Continued studies to evaluate the juvenile bypass systems at Bonneville Dam - 1989. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Science Center to the U.S. Army Corps of Engineers, Portland District, Seattle, WA, Contract DACW77-88-F-9999, 34 p.

1989

Gessel, M. H., B. H. Monk, D. A. Brege, J. G. Williams. 1989. Fish guidance efficiency studies at Bonneville First and Second Powerhouses, 1988. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Science Center to the U.S. Army Corps of Engineers, Seattle, WA, Delivery Order DACW57-87-F-0322, 36 p.

1988

Gessel, M. H., B. H. Monk, J. G. Williams. 1988. Evaluation of the juvenile fish collection and bypass systems at Bonneville Dam - 1987. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Science Center to the U.S. Army Corps of Engineers, Contract DACW57-87-F-0322, 131 p.

1987

Gessel, M. H., L. G. Gilbreath, W. D. Muir, B. H. Monk, R. Krcma. 1987. Evaluation of the juvenile salmonid collection and bypass systems at Bonneville Dam - 1986. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-86-F-0270, 53 p.

Monk, B. H., W. D. Muir, M. H. Gessel. 1987. Studies to evaluate alternative methods of bypassing juvenile fish at the Dalles Dam, 1986. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-85-H-0295, 16 p.

1986

Gessel, M. H., L. G. Gilbreath, W. D. Muir, R. Krcma. 1986. Evaluation of the juvenile collection and bypass systems at Bonneville Dam - 1985. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-85-H-0001, 63 p.

1985

Gessel, M. H., R. Krcma, W. D. Muir, C. S. McCutcheon, L. G. Gilbreath, B. H. Monk. 1985. Evaluation of the juvenile collection and bypass system at Bonneville Dam, 1984. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-84-F-0181, 48 p.

1984

Krcma, R., M. H. Gessel, W. D. Muir, C. S. McCutcheon, L. G. Gilbreath, B. H. Monk. 1984. Evaluation of the juvenile collection and bypass system at Bonneville Dam - 1983. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-83-F-0315, 56 p.

1983

Krcma, R., M. H. Gessel, F. J. Ossiander. 1983. Research at McNary Dam to develop and implement a fingerling protection system for John Day Dam. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-82-F-0373, 24, 3, 5 p.

1982

Krcma, R., D. DeHart, M. H. Gessel, C. Long, C. W. Sims. 1982. Evaluation of submersible traveling screens, passage of juvenile salmonids through the ice and trash sluiceway, and cycling of gatewell orifice operation at the Bonneville Dam First Powerhouse, 1981. Report by Coastal Zone and Estuarine Studies Division, Northwest and Alaska Fisheries Center to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-81-F-0343, 36, [25] p.

1979

Krcma, R., C. Long, C. Thompson, W. Farr, T. W. Newcomb, M. H. Gessel. 1979. The development of an improved fingerling protection system for low head dams, 1978. Report by Northwest and Alaska Fisheries Center, Coastal Zone and Estuarine Studies Division to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-79-F-0163, 40 p.

1978

Ruehle, T. E., C. Long, M. H. Gessel. 1978. Laboratory studies of a nontraveling bar screen for guiding juvenile salmonids out of turbine intakes. Report by Northwest and Alaska Fisheries Science Center, Division of Coastal Zone and Estuarine Studies to the U.S. Army Corps of Engineers, Seattle, WA, Contract DACW57-77-F-0071, 14 p.

Technical Memorandum

2005

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, 160 p.

1994

Gessel, M. H., B. P. Sandford, B. H. Monk, D. A. Brege. 1994. Population Estimates of Northern Squawfish, Ptychocheilus oregonensis, at Bonneville Dam First Powerhouse, Columbia River. U.S. Dept. of Commerce, NOAA Tech. Memo., NMFS-NWFSC-18, 21 p.

Report

2002

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 Research, Fish Ecology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, ix, 150 p.

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 Research, Fish Ecology Division, Northwest Fisheries Science Center, v, 40 p.

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