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University of Idaho
Department of Fish and Wildlife Resources
Moscow, ID 83844-1136
(208) 885-6434
fish_wildlife@uidaho.edu
 

Dennis L. Scarnecchia
Professor of Fisheries


Ph.D.  1983 Fisheries, Colorado State University, Fort 
                              Collins
M.S.   1979 Fisheries, Oregon State University, Corvallis
B.S.    1976 Physics, University of Arizona, Tucson


Fish and Wildlife Resources
University of Idaho
Moscow, ID 83844-1136
Office Phone: (208) 885-5981
Office Fax: (208) 885-9080
E-mail: scar@uidaho.edu

Background:

1998 - Present Professor, Department of Fish and Wildlife Resources, University of
     Idaho
1990 - 1998 Associate Professor, Department of Fish and Wildlife Resources,
     University of Idaho
1985 - 1990 Assistant Professor, Department of Animal Ecology, Iowa State
     University, Ames
1984 - 1985 Program Leader, Ocean Salmon Management, Oregon Department of
     Fish and Wildlife
1983 - 1984 Project Leader, Columbia River Research, Oregon Department of
     Fish and Wildlife
1982 Fishery Research Biologist, Institute of Freshwater Fisheries, Reykjavik,
     Iceland
1981 Fulbright Scholar, Iceland

Professional Interests:

  • Paddlefish and Sturgeon Biology, Ecology, Stock Assessment and Management
  • Fish Population Dynamics and Stock Assessment
  • Salmon, Trout and Charr Ecology and Management
  • Large River Ecology & Fisheries
  • Fisheries Management
Courses:

  • Fisheries Management
  • Ecology and Management of River Fisheries
  • Fisheries Seminar
Current Graduate Students: 

John Erhardt, MS Fishery Resources

Dean Holecek, MS Environmental Science
Trevor Watson, MS Environmental Science


Publications:                                                           



Bednarski, J., S.E. Miller and D.L. Scarnecchia. 2008.  Larval fish catches in the Milk River, Montana in  relation to timing and magnitude of spring discharge. River Research and Applicationspdf

Miller, S.E. and D.L. Scarnecchia. 2008. Adult paddlefish migrations in relation to spring river conditions of the Yellowstone and Missouri Rivers, Montana and North Dakota, USA. Journal of Applied Icthyology 24:221-228.  pdf

Watry, C.B. and D.L. Scarnecchia. 2008. Adfluvial and fluvial life history variations and migratory patterns of a relict charr, Salvelinus confluentus, stock in west-central Idaho, USA. Ecology of Freshwater fish. pdf

Patterson, S.D., D.L. Scarnecchia, and J.L. Congleton. 2008. Sexual maturation in kokanee Oncorhynchus nerka. Northwest Science 82:30-47. pdf

Firehammer, J.A., and D.L. Scarnecchia. 2007. The influence of discharge on duration, ascent distance, and fidelity of the spawning migration for paddlefish of the Yellowstone-Sakakawea stock, Montana and North Dakota, USA.  Environmental Biology of Fishes 78:23-36.  pdf

Scarnecchia, D.L., L.F. Ryckman, Y. Lim, G.J. Power, B.J. Schmitz, and J.A. Firehammer. 2007. Life history and the costs of reproduction in Northern Great Plains paddlefish (Polyodon spathula) as a potential framework for other acipenseriform fishes. Reviews in Fisheries Science 15:211-263. pdf

Scarnecchia, D. L., L.F. Ryckman, Y. Lim, G. Power, B. Schmitz, and V. Riggs. 2006. A long-term program for validation and verification of dentaries for age estimation in the Yellowstone-Sakakawea paddlefish stock. Transactions of the American Fisheries Society 135:1086-1094. pdf

Firehammer, J.A., and D. L. and Scarnecchia. 2006. Spring migratory movements by paddlefish in natural and regulated river segments of the Missouri and Yellowstone rivers, North Dakota and Montana. Transactions of the American Fisheries Society 135:200-217.  pdf

Firehammer, J.A., D. L. Scarnecchia, and S. R. Fain. 2006. Modification of a passive gear to sample paddlefish eggs in sand-bed spawning reaches of the Lower Yellowstone River.  North American Journal of Fisheries Management 26:63-72.  pdf

Bednarski, J. and D.L. Scarnecchia. 2006. Age structure and reproductive activity of the blue sucker in the Milk River, Missouri River Drainage, Montana.  Prairie Naturalist 38(3):167-182.  pdf

Hogen, D. M., and D. L. Scarnecchia. 2006. Distinct fluvial and adfluvial migration patterns of a relict charr, Salvelinus confluentus, stock in a mountainous watershed, Idaho, USA.  Ecology of Freshwater Fish 15:376-387.  pdf

Welker, T. and D. L. Scarnecchia 2006. River alteration and niche overlap among three native minnows (Cyprinidae) in the Missouri River hydrosystem. Journal of Fish Biology 68:1530-1550.  pdf

Venard, J. A. and D. L. Scarnecchia. 2005. Seasonally dependent movement of lake trout between two North Idaho Lakes. North American Journal of Fisheries Management 25:635-639.  pdf

Young, W. T., and D. L. Scarnecchia. 2005. Habitat use of juvenile white sturgeon in the Kootenai River, Idaho and British Columbia. Hydrobiologia 537:265-271.  pdf

Kruzic, L. M., D. L. Scarnecchia, and B. B. Roper. 2005. Effects of electroshocking on macroinvertebrate drift in three coldwater streams.  Hydrobiologia 539:57-67.  pdf

Everett, S., D.L. Scarnecchia and F. Ryckman. 2004. Distribution and habitat use of sturgeon chubs (Macrhybopsis gelida) and sicklefin chubs (M. meeki) in the Missouri and Yellowstone Rivers, North Dakota. Hydrobiologia 527:183-193.  pdf

Welker, T.L. and D.L. Scarnecchia. 2004. Habitat use and population structure of four native minnows (family Cyprinidae) in the upper Missouri and lower Yellowstone Rivers, North Dakota (USA). Ecology of Freshwater Fish 13:8-22.  pdf

Welker, T.L. and D.L. Scarnecchia. 2003. Differences in species composition and feeding ecology of catostomid fishes in two distinct segments of the Missouri River, North Dakota, USA. Environmental Biology of Fishes 68:129-141. pdf

Everett, S., D.L. Scarnecchia, G. Power, and C.L. Williams. 2003. Comparision of age and growth of shovelnose sturgeon in the Missouri and Yellowstone Rivers. North American Journal of Fisheries Management 23:230-240.  pdf

Bonneau, J., and D.L. Scarnecchia. 2002. Spawning-season homing of common carp and river carpsucker. Prairie Naturalist 34:13-20. pdf

Kozfkay, J.R. and D.L. Scarnecchia. 2002. Year-class strength and feeding ecology of age-0 and age-1 paddlefish (Polyodon spathula) in Fort Peck Lake, Montana, USA. Journal of Applied Ichthyology 18:601-607. pdf

Kruse, G. and D.L. Scarnecchia. 2002. Contaminant uptake and survival of white sturgeon embryos.  American Fisheries Society Symposium 28:151-160. pdf

Kruse, G.O., and D.L. Scarnecchia. 2002. Assessment of bioaccumulated metal and organochlorine compounds in relation to physiological biomarkers in Kootenai River white sturgeon. Journal of Applied Ichthyology 18:430-438. pdf

Parken, C. and D.L. Scarnecchia. 2002. Predation on age-0 paddlefish by walleye and sauger in a Great Plains reservoir. North American Journal of Fisheries Management 22:750-759.  pdf

Bonneau, J., and D.L. Scarnecchia. 2001. Tests of a rotenone-impregnated bait for controlling common carp. Proceedings of the Iowa Academy of Sciences 108(1):6-7. pdf

Kruzic, L.M., D.L. Scarnecchia, and B.B. Roper. 2001. Comparison of mid-summer survival and growth of age-0 hatchery coho salmon held in pools and riffles. Transactions of the American Fisheries Society 130:147-154.  pdf

Roper, B.B., and D.L. Scarnecchia. 2001. Patterns of diversity, density and biomass of ectothermic vertebrates in ten small streams along a North American river continuum. Northwest Science 75(2):168-175. pdf

Spangler, R., and D.L. Scarnecchia. 2001. Summer and fall microhabitat utilization of juvenile bull trout and cutthroat trout in a wilderness stream, Idaho. USA. Hydrobiologia 452:145-154. pdf

Roper, B.B. and D.L. Scarnecchia. 2000. Key strategies for estimating population sizes of emigrating salmon smolts with a single trap. Rivers 7:77-88. pdf

Scarnecchia, D.L., K. Gilge, and P.A. Stewart. 2000. Profile of recreational paddlefish snaggers on the Upper Missouri River, Montana. Intermountain Journal of Sciences 6:68-77. pdf

Scarnecchia, D.L., K. Grabenstein and S. Hiebert. 2000. Biology of the flathead chub in the Lower Yellowstone River, Montana. Intermountain Journal of Sciences 6:10-17. pdf

Scarnecchia, D.L. and B.B. Roper. 2000. Large-scale differential summer habitat use of three anadromous salmonids in a large river basin in Oregon, U.S.A. Fisheries Management and Ecology 7:197-209. pdf

Roper, B.B. and D.L. Scarnecchia. 1999. Emigration of age-0 chinook salmon (Oncorhynchus tshawytscha) smolts from the upper South Umpqua River Basin, Oregon, USA. Canadian Journal of Fisheries and Aquatic Sciences 56:939-946. pdf

Scarnecchia, D.L., P. A. Stewart, L.F. Ryckman, G. Van Eeckhout, B.C. Reed, and L.K. Graham. 1999. Caution on the use of electrofishing for paddlefish. Intermountain Journal of Sciences 5(1-4):35-38. pdf

Starkey, R.W., and D.L. Scarnecchia. 1999. Age and growth of channel catfish in the Lower Yellowstone River, Montana. Intermountain Journal of Sciences 5:28-34. pdf

Bonneau, J.L. and D.L. Scarnecchia. 1998. Seasonal and diel changes in habitat use by juvenile bull trout (Salvelinus confluentus) and cutthroat trout (Oncorhynchus clarki) in a mountain stream. Canadian Journal of Zoology 76:783-790. pdf

Curtis, G.L., J.S. Ramsey, and D.L. Scarnecchia. 1997. Habitat use and movements of shovelnose sturgeon in pool 13 of the upper Mississippi River during extreme low flow conditions. Environmental Biology of Fishes 50:175-182. pdf

Scarnecchia, D.L. and P.A. Stewart. 1997. Angler response to harvest regulations in Montana's Yellowstone River paddlefish (Polyodon spathula) fishery.  Intermountain Journal of Sciences 3:94-100. pdf

Fredericks, J.P. and D.L. Scarnecchia. 1997. Use of surface visual counts for estimating relative abundance of age-0 paddlefish in Lake Sakakawea. North American Journal of Fisheries Management 17:1014-1018. pdf

Scarnecchia, D.L., F. Ryckman, and J. Lee. 1997. Capturing and tagging wild age-0 and age-1 paddlefish in a Great Plains reservoir. North American Journal of Fisheries Management 17:800-802. pdf

Scarnecchia, D.L. and P.A. Stewart. 1997. Implementation and evaluation of a catch-and-release fishery for paddlefish. North American Journal of Fisheries Management 17:795-799.  pdf

Bonneau, J.L., and D.L. Scarnecchia. 1996. Distribution of juvenile bull trout in a thermal gradient of a plunge pool in Granite Creek, Idaho. Transactions of the American Fisheries Society 125:628-630. pdf

Roper, B.B., and D.L. Scarnecchia. 1996. A comparison of trap efficiencies for wild and hatchery age-0 chinook salmon. North American Journal of Fisheries Management 16:214-217. pdf

Scarnecchia, D.L., P.A. Stewart, and G.J. Power. 1996. Age structure of the Yellowstone-Sakakawea paddlefish stock, 1963-1993, in relation to reservoir history. Transactions of the American Fisheries Society 125:291-299. pdf

Scarnecchia, D.L., P.A. Stewart, and Y. Lim. 1996. Profile of recreational paddlefish snaggers on the Lower Yellowstone River, Montana.  North American Journal of Fisheries Management 16:872-879.  pdf

Bonneau, J.L., R.F. Thurow, and D.L. Scarnecchia. 1995. Capture, marking, and enumeration of juvenile bull trout and cutthroat trout in small low-conductivity streams. North American Journal of Fisheries Management 15:563-568. pdf

Roper, B.B., and D.L. Scarnecchia. 1995. Observer variability in classifying types in habitat stream surveys. North American Journal of Fisheries Management 15:49-53. pdf

Saffel, P.D., and D.L. Scarnecchia. 1995. Habitat use by juvenile bull trout in Belt-series geology watersheds of northern Idaho. Northwest Science 69:304-317. pdf

Austen, D.J., D.L. Scarnecchia, and E.P. Bergersen. 1994. Usefulness of structural and condition indices in management of high mountain stream salmonid populations. North American Journal of Fisheries Management 14:681-691. pdf

Roper, B.B., D.L. Scarnecchia, and T. LaMarr. 1994. Summer distribution and habitat use by chinook salmon and steelhead within a major basin of the South Umpqua River, Oregon. Transactions of the American Fisheries Society 123:298-308. pdf

Bryan, M.D., and D.L. Scarnecchia. 1992. Species richness, composition, and abundance of fish larvae inhabiting natural and developed shorelines of a glacial Iowa lake. Environmental Biology of Fishes 35:329-341. pdf

Moen, C.T., D.L. Scarnecchia, and J.S. Ramsey. 1992. Paddlefish movements and habitat use in Pool 13 of the Upper Mississippi River during abnormally low stages and discharges. North American Journal of Fisheries Management 12:744-751.  pdf

Scarnecchia, D.L. 1992. A reappraisal of gars and bowfins in fishery management. Fisheries 17(5):6-12.  pdf

Scarnecchia, D.L. and J.R. Wahl. 1992. Fifty years of fisheries management in an obstinate prairie lake. Journal of the Iowa Academy of Science 99:7-14. pdf

Scarnecchia, D.L., A. Isaksson, and S.E. White. 1991. Effects of Faroese long-line fishery, other oceanic fisheries, and oceanic variations on age maturity of Icelandic north coast stocks of Atlantic salmon (Salmo salar). Fisheries Research 10:207-228. pdf

Scarnecchia, D.L. 1989. The history and development of Atlantic salmon management in Iceland. Fisheries 14(2):14-21. pdf

Scarnecchia, D.L., T.W. Gengerke, and C.T. Moen. 1989. Rationale for a harvest slot limit for paddlefish (Polyodon spathula) in the Upper Mississippi River. North American Journal of Fisheries Management 9:477-487.  pdf

Scarnecchia, D.L., A. Isaksson, and S.E. White. 1989. Effects of oceanic variations and the West Greenland fishery on age at maturity of Icelandic west coast stocks of Atlantic salmon (Salmo salar). Canadian Journal of Fisheries and Aquatic Sciences 46:16-27. pdf

Scarnecchia, D.L., A. Isaksson, and S.E. White. 1989. New and revised yield forecasts for two-sea-winter Atlantic salmon (Salmo salar) in Icelandic rivers. Journal of Applied Ichthyology 5:101-110. pdf

Scarnecchia, D.L., A. Isaksson, and S.E. White. 1989. Oceanic and riverine influences on variations in yield among Icelandic stocks of Atlantic salmon. Transactions of the American Fisheries Society 118:482-494. pdf

Scarnecchia, D.L. 1988. Evaluation of fish eradication and game fish restocking in a central Iowa pond. Journal of the Iowa Academy of Science 95:55-59. pdf

Scarnecchia, D.L. 1988. Salmon management and the search for values. Canadian Journal of Fisheries and Aquatic Sciences 45:2042-2050. pdf

Scarnecchia, D.L. 1988. The importance of streamlining in influencing fish community structure in channelized and unchannelized reaches of a prairie stream. Regulated Rivers: Research and Management 2:155-166. pdf

Scarnecchia, D.L. 1987. Rapid removal of otoliths from salmonids. North American Journal of Fisheries Management 7:312-313. pdf

Scarnecchia, D.L. and E.P. Bergersen. 1987. Trout production and standing crop in Colorado's small streams, as related to environmental features. North American Journal of Fisheries Management 7:315-330. pdf

Scarnecchia, D.L. and E.P. Bergersen. 1986. Production and habitat of threatened greenback and Colorado River cutthroat trouts. Transactions of the American Fisheries Society 115:382-391. pdf

Scarnecchia, D.L. 1984. Climatic and oceanic variations affecting yield of Icelandic stocks of Atlantic salmon (Salmo salar). Canadian Journal of Fisheries and Aquatic Sciences 41:917-935. pdf

Scarnecchia, D.L. 1984. Forecasting yields of two-sea-winter Atlantic salmon (Salmo salar) from Icelandic rivers.  Canadian Journal of Fisheries and Aquatic Sciences 41:1234-1240. pdf

Scarnecchia, D.L. 1983. Age at sexual maturity in Icelandic stocks of Atlantic salmon (Salmo salar).  Canadian Journal of Fisheries and Aquatic Sciences 40:1456-1468. pdf

Scarnecchia, D.L.  1981. Effects of streamflow and upwelling on yield of wild coho salmon (Oncorhynchus kisutch) in Oregon.  Canadian Journal of Fisheries and Aquatic Sciences 38:471-475. pdf

Scarnecchia, D.L., and H.H. Wagner. 1980. Contribution of wild and hatchery-reared coho salmon, Oncorhynchus kisutch, to the Oregon ocean sport fishery. NOAA Fishery Bulletin 77(3):617-623. pdf

Scarnecchia, D.L. 1979. Variation of scale characteristics of coho salmon with sampling location on the body. Progressive Fish Culturist 41(3):132-135. pdf

Popular Articles:

Scarnecchia, D.L., J. Hendrickson, and R. Hiltner. 2005. Walleye for the ages. North Dakota Outdoors 67(10):17-20. pdf

Kozfkay, J., D. Scarnecchia, K. Gilge and B. Wiedenheft. 2002. Solving the puzzle of Peck's young paddlefish. Montana Outdoors. 33(2):26-31.

Scarnecchia, D., S. Everett, T. Welker and F. Ryckman. 2002. Missouri River Fishes: big changes in the Big Muddy. North Dakota Outdoors. 64(8):10-13. pdf

Firehammer, J., D. Scarnecchia and F. Ryckman. 2001. Paddlefish left and right. North Dakota Outdoors. 64(1):4-6. pdf

Scarnecchia, D., T. Welker, and F. Ryckman. 1998. Teaming up on the mighty Mo.  The Missouri River Benthic Fish Study. North Dakota Outdoors 61(4):5-7.

Scarnecchia, D., and F. Ryckman. 1998. Tagging young paddlefish for the twenty-first century. North Dakota Outdoors 60(10):7-9.

Scarnecchia, D.L., and P.A. Stewart. 1996. Managing Montana's paddlefish: new approaches. Montana Outdoors 27(3):10-14.

Bonneau, J., D. Scarnecchia, and E. Berard. 1995. Better fishing means less carping at Bowman-Haley reservoir. North Dakota Outdoors 57(10):18-20. pdf

Scarnecchia, D., J. Fredericks, and F. Ryckman. 1995. Unlocking the secrets of Lake Sakakawea's young paddlefish. North Dakota Outdoors 57(9):10-13.

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