River Carpsucker - Carpiodes carpio
The river carpsucker has a widespread distribution in warm-water prairie streams, rivers and reservoirs. Only a few individuals reach the largest weight of about 10 pounds. All suckers have long intestines, which is an adaptation for processing detritus and plant material in addition to the insects, snails and clams they pick up from stream and lake bottoms. The chief value of suckers is as forage and bait for sport fishes. Most fishermen believe that suckers compete with trout, but most species of fish that have evolved together as these have developed mechanisms to minimize competition. River carpsuckers are occasionally caught on hook and line.
Sides silvery, back brown to olive, underside white. Lower fins white.
Western Hemisphere Range
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
May make extensive spawning runs to larger tributary streams e.g., Marias River, Tongue River.
Reservoirs and the pools and backwaters of rivers. Spawn in larger streams with backwater areas.
Mostly diatoms and filamentous algae from the stream bottom, but also aquatic invertebrate larvae make up a large portion of the diet.
Downstream portions of Yellowstone River important as rearing areas. A schooling fish.
Spawns May - July over vegetation along shorelines of reservoir and quiet areas of streams. Incubation: 8-15 days. Sexually mature at 2-3 yrs. Spawn peaks in June on middle Missouri River.
- Literature Cited AboveLegend: View Online Publication
- Lee, D.S., C.R. Gilbert, C.H. Hocutt, R.E. Jenkins, D. E. McAllister, J. R. Stauffer, Jr. 1980. Atlas of North American freshwater fishes. North Carolina State Musuem of Natural History. 867 p.
- Scott, W.B. and E.J. Crossman. 1973. Rainbow trout, Kamloops trout, Steelhead trout Salmo gairdneri Richardson. pp. 184-191. In: Freshwater fishes of Canada. Ottawa, Canada: Fisheries Research Board of Canada, Bulletin 184. 966 p.
- Additional ReferencesLegend: View Online Publication
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- Barfoot, C.A. 1993. Longitudinal distribution of fishes and habitat in Little Beaver Creek, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 66 p.
- Clancey, C.G. 1978. The fish and aquatic invertebrates in Sarpy Creek, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 54 p.
- Craig, V.E. 1952. A story of fish production as it applies to Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 92 p.
- Dieterman, D.J., M.P. Ruggles, M.L. Wildhaber, and D.L. Galat (eds). 1996. Population structure and habitat use of benthic fishes along the Missouri and Lower Yellowstone Rivers. 1996 Annual report of Missouri River Benthic Fish Study PD-95-5832 to U.S. Army Corps of Engineers and U.S. Bureau of Reclamation. 238 p.
- Duncan, M.B. 2019. Distributions, abundances, and movements of small, nongame fishes in a large Great Plains river network. Ph.D. Dissertation. Bozeman, MT: Montana State University. 255 p.
- Joslin, Gayle, and Heidi B. Youmans. 1999. Effects of recreation on Rocky Mountain wildlife: a review for Montana. [Montana]: Montana Chapter of the Wildlife Society.
- Montana Department of Fish, Wildlife and Parks. 1989. Northeast Montana Warmwater Ecosystem Investigations: project period 7/1/88 through 6/30/89. Proj.# F-46-R-2; Job# V-e. 21p.
- Mullen, J.A. 2007. Spatiotemporal variation of fish assemblages in Montana prairie streams. M.Sc. Thesis. Bozeman, MT: Montana State University. 102 p.
- Mullins, M.S. 1991. Biology and predator use of cisco (Coregonus artedi) in Fort Peck Reservoir, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 68 p.
- Penkal, R.F. 1977. Black bass populations of the Tongue River Reservoir, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 111 p.
- Rosenthal, L.R. 2007. Evaluation of distribution and fish passage in relation to road culverts in two eastern Montana prairie streams. M.Sc. Thesis. Bozeman, MT: Montana State University. 78 p.
- Stash, S.W. 2001. Distribution, relative abundance, and habitat associations of Milk River fishes related to irrigation diversion dams. M.Sc. Thesis. Bozeman, MT: Montana State University. 82 p.
- Stevenson, H.R. 1975. The trout fishery of the Bighorn River below Yellowtail Dam, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 67 p.
- Stringer, A.L. 2018. Status of Northern Pearl Dace and chrosomid dace in prairie streams of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 150 p.
- Trenka, R.J. 2000. Community structure and habitat associations of fishes of the lower Tongue and Powder Rivers. M.Sc. Thesis. Bozeman, MT: Montana State University. 85 p.
- USDI Bureau of Land Management. No date. Fishes of the Miles city, Montana BLM District. Miles City, MT: Miles City BLM District pamphlet. 12 p.
- Wuellner, M.R. 2007. Influence of reach and watershed characteristics on fish distributions in small streams of eastern Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 80 p.
- Young, B.A., T.L. Welker, M.L. Wildhaber, C.R. Berry, and D. Scarnecchia (eds). 1997. Population structure and habitat use of benthic fishes along the Missouri and Lower Yellowstone Rivers. 1997 Annual report of Missouri River Benthic Fish Study PD-95-5832 to U.S. Army Corps of Engineers and U.S. Bureau of Reclamation. 207 p.
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