Erimystax dissimilis - (Kirtland, 1841)
Streamline Chub
Synonym(s): Hybopsis dissimilis
Taxonomic Status: Accepted
Related ITIS Name(s): Erimystax dissimilis (Kirtland, 1840) (TSN 163821)
Unique Identifier: ELEMENT_GLOBAL.2.106034
Element Code: AFCJB50020
Informal Taxonomy: Animals, Vertebrates - Fishes - Bony Fishes - Minnows and Carps
Image 112

© Noel Burkhead & Virginia Dept of Game and Inland Fisheries (Fishes of Virginia)

 
Kingdom Phylum Class Order Family Genus
Animalia Craniata Actinopterygii Cypriniformes Cyprinidae Erimystax
Genus Size: B - Very small genus (2-5 species)
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Concept Reference
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Concept Reference: Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea, and W.B. Scott. 1991. Common and scientific names of fishes from the United States and Canada. American Fisheries Society, Special Publication 20. 183 pp.
Concept Reference Code: B91ROB01NAUS
Name Used in Concept Reference: Erimystax dissimilis
Taxonomic Comments: Erimystax harryi, formerly included as a subspecies of E. dissimilis, was given species status by Robins et al. (1991) (which see for justification). Page and Burr (1991) retained harryi as a subspecies of E. dissimilis.

This species was removed from genus Hybopsis and placed in genus (formerly subgenus) Erimystax by Mayden (1989) and Coburn and Cavender (1992); this change was adopted in the 1991 AFS checklist (Robins et al. 1991).

See Simons (2004) for information on the phylogenetic relationships of species in the genus Erimystax, based on mtDNA data.
Conservation Status
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NatureServe Status

Global Status: G4
Global Status Last Reviewed: 30Nov2011
Global Status Last Changed: 18Sep1996
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G4 - Apparently Secure
Nation: United States
National Status: N4 (05Dec1996)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (S1S2), Indiana (S3), Kentucky (S4), New York (S1), Ohio (S4), Pennsylvania (S4S5), Tennessee (S3S4), Virginia (S3), West Virginia (S4)

Other Statuses

IUCN Red List Category: LC - Least concern

NatureServe Global Conservation Status Factors

Range Extent: 200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Range Extent Comments: Range includes the Ohio River basin from western New York to northern Indiana, and south to northern Alabama; one record for Lake Erie, Ohio (Page and Burr 2011).

Number of Occurrences: 21 - 300
Number of Occurrences Comments: This species is represented by a large number of occurrences (subpopulations).

Population Size: 10,000 - 1,000,000 individuals
Population Size Comments: In the 1960s and 1970s, this species was fairly common in portions of the Clinch River and somewhat less common in the Powell River, Tennessee; increasingly rare in recent years (Etnier and Starnes 1993). Locally common in Kentucky (Burr and Warren 1986), generally uncommon or common in Virginia (Jenkins and Burkhead 1994). Overall, this species is uncommon and localized (Page and Burr 2011), but total adult population size presumablt exceeds 10,000.

Overall Threat Impact Comments: Primary threat is degradation of water quality such as commonly results from agricultural activities.

Short-term Trend: Decline of <30% to relatively stable
Short-term Trend Comments: Trend over the past three generations is uncertain but probably relatively stable or slowly declining.

Long-term Trend:  
Long-term Trend Comments: This species has disappeared from much of its original range (Etnier and Starnes 1993).

Other NatureServe Conservation Status Information

Distribution
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Global Range: (200,000-2,500,000 square km (about 80,000-1,000,000 square miles)) Range includes the Ohio River basin from western New York to northern Indiana, and south to northern Alabama; one record for Lake Erie, Ohio (Page and Burr 2011).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map
Endemism: endemic to a single nation

U.S. & Canada State/Province Distribution
United States AL, IN, KY, NY, OH, PA, TN, VA, WV

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AL Lauderdale (01077)
NY Cattaraugus (36009)
OH Coshocton (39031), Franklin (39049), Knox (39083), Madison (39097), Pickaway (39129), Ross (39141)
PA Armstrong (42005), Clarion (42031), Crawford (42039), Erie (42049), Forest (42053), Mercer (42085), Warren (42123)
TN Lawrence (47099)
VA Lee (51105), Washington (51191)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
04 Cuyahoga (04110002)*, Lake Erie (04120200)*
05 Upper Allegheny (05010001)+, Middle Allegheny-Tionesta (05010003)+, French (05010004)+, Clarion (05010005)+, Middle Allegheny-Redbank (05010006)+, Mahoning (05030103)*, Little Kanawha (05030203), Tuscarawas (05040001)+*, Mohican (05040002)+, Walhonding (05040003)+, Muskingum (05040004)+, Lower New (05050004), Upper Kanawha (05050006), Elk (05050007), Upper Scioto (05060001)+, Lower Scioto (05060002)+, Paint (05060003)+, Upper Levisa (05070202), Lower Levisa (05070203), Upper Great Miami (05080001)*, Little Miami (05090202)*, Licking (05100101), North Fork Kentucky (05100201), Middle Fork Kentucky (05100202), South Fork Kentucky (05100203), Upper Kentucky (05100204), Upper Green (05110001), Barren (05110002), Rockcastle (05130102), Upper Cumberland-Lake Cumberland (05130103), South Fork Cumberland (05130104), Obey (05130105), Upper Cumberland-Cordell Hull (05130106), Stones (05130203), Harpeth (05130204), Red (05130206), Rolling Fork (05140103)
06 North Fork Holston (06010101)+, South Fork Holston (06010102), Watauga (06010103), Holston (06010104), Upper Clinch (06010205), Powell (06010206)+, Lower Clinch (06010207), Wheeler Lake (06030002), Upper Elk (06030003), Lower Elk (06030004), Pickwick Lake (06030005)+, Upper Duck (06040002), Lower Duck (06040003), Buffalo (06040004)
07 Kankakee (07120001)
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
U.S. Distribution by Watershed (based on multiple information sources) Help
Ecology & Life History
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Reproduction Comments: Spawns in late spring.
Habitat Type: Freshwater
Non-Migrant: N
Locally Migrant: N
Long Distance Migrant: N
Riverine Habitat(s): MEDIUM RIVER, Moderate gradient, Pool, Riffle
Special Habitat Factors: Benthic
Habitat Comments: This chub typically occurs in large, medium-gradient, moderately clear streams and rivers with clean gravel bottom; often in shoal areas with moderate flow (Lee et al. 1980); over gravel and rubble in riffles, runs, and flowing pools of clear, small to large rivers (Page and Burr 2011).
Adult Food Habits: Invertivore
Immature Food Habits: Invertivore
Food Comments: Feeds opportunistically on various benthic organisms (mostly insect larvae and gastropods) and occasional terrestrial insects (Lee et al. 1980).
Length: 12 centimeters
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation
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Group Name: Small Cyprinids

Use Class: Not applicable
Minimum Criteria for an Occurrence: Occurrences are based on evidence of historical presence, or current and likely recurring presence, at a given location. Such evidence minimally includes collection or reliable observation and documentation of one or more individuals (including eggs and larvae) in appropriate habitat.
Separation Barriers: Dam lacking a suitable fishway; high waterfall; upland habitat. For some species (e.g., slender chub), an impoundment may constitute a barrier. For others (e.g., flame chub) a stream larger than 4th order may be a barrier.
Separation Distance for Unsuitable Habitat: 10 km
Separation Distance for Suitable Habitat: 10 km
Separation Justification: Data on dispersal and other movements generally are not available. In some species, individuals may migrate variable distances between spawning areas and nonspawning habitats.

Separation distances (in aquatic kilometers) for cyprinids are arbitrary but reflect the presumption that movements and appropriate separation distances generally should increase with fish size. Hence small, medium, and large cyprinids, respectively, have increasingly large separation distances. Separation distance reflects the likely low probability that two occupied locations separated by less than several kilometers of aquatic habitat would represent truly independent populations over the long term.

Because of the difficulty in defining suitable versus unsuitable habitat, especially with respect to dispersal, and to simplify the delineation of occurrences, a single separation distance is used regardless of habitat quality.

Occupied locations that are separated by a gap of 10 km or more of any aquatic habitat that is not known to be occupied represent different occurrences. However, it is important to evaluate seasonal changes in habitat to ensure that an occupied habitat occurrence for a particular population does not artificially separate spawning areas and nonspawning areas as different occurrences simply because there have been no collections/observations in an intervening area that may exceed the separation distance.

Date: 21Sep2004
Author: Hammerson, G.
Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 06Apr2012
NatureServe Conservation Status Factors Author: Hammerson, G.
Element Ecology & Life History Edition Date: 30Nov2011
Element Ecology & Life History Author(s): Hammerson, G.

Zoological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).

References
Help
  • Alabama Department of Conservation and Natural Resources, Division of Wildlife and Freshwater Fisheries. 2005. Conserving Alabama's wildlife: a comprehensive strategy. Alabama Department of Conservation and Natural Resources, Division of Wildlife and Freshwater Fisheries. Montgomery, Alabama. 303 pages. [Available online at http://www.dcnr.state.al.us/research-mgmt/cwcs/outline.cfm ]

  • Boschung, H. T., and R. L. Mayden. 2004. Fishes of Alabama. Smithsonian Institution Press, Washington, D.C. 736 pages.

  • Coburn, M. M., and T. M. Cavender. 1992. Interrelationships of North American cyprinid fishes. Pages 328-373 in R.L. Mayden, editor. Systematics, historical ecology, and North American freshwater fishes. Stanford University Press, Stanford, California. xxvi + 969 pp.

  • Cooper, E.L. 1983. Fishes of Pennsylvania. Penn State Univ. Press, University Park, PA.

  • Etnier, David A. and Wayne C. Starnes. 1993. The Fishes of Tennessee. University of Tennessee Press, Knoxville. 681 pp.

  • Mayden, R. L. 1989. Phylogenetic studies of North American minnows, with emphasis on the genus Cyprinella (Teleostei: Cypriniformes). University of Kansas Museum of Natural History Miscellaneous Publication (80):1-189.

  • Mettee, M.F., P. E. O'Neil, and J.M. Pierson. 1996. Fishes of Alabama and the Mobile Basin. Oxmoor House, Inc., Birmingham, Alabama. 820 pages.

  • Mirarchi, R. E., J. T. Garner, M. F. Mettee, and P.E. O'Neil, editors. 2004. Alabama wildlife. Volume 2. Imperiled aquatic mollusks and fishes. The University of Alabama Press, Tuscaloosa, Alabama. 255 pages

  • Mirarchi, R.E., M.A. Bailey, J.T. Garner, T.M. Haggerty, T.L. Best, M.F. Mettee, and P. O'Neil, editors. 2004. Alabama Wildlife. Volume 4. Conservation and management recommendations for imperiled wildlife. The University of Alabama Press, Tuscaloosa, Alabama. 221 pages.

  • Mirarchi, R.E., editor. 2004. Alabama Wildlife. Volume 1. A checklist of vertebrates and selected invertebrates: aquatic mollusks, fishes, amphibians, reptiles, birds, and mammals. The University of Alabama Press, Tuscaloosa, Alabama. 209 pages.

  • Nelson, J. S., E. J. Crossman, H. Espinosa-Perez, L. T. Findley, C. R. Gilbert, R. N. Lea, and J. D. Williams. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico. American Fisheries Society, Special Publication 29, Bethesda, Maryland. 386 pp.

  • Nelson, J. S., E. J. Crossman, H. Espinosa-Pérez, L. T. Findley, C. R. Gilbert, R. N. Lea, and J. D. Williams. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico. Sixth edition. American Fisheries Society Special Publication 29. 386 pages.

  • Page, L. M., H. Espinosa-Pérez, L. T. Findley, C. R. Gilbert, R. N. Lea, N. E. Mandrak, R. L. Mayden, and J. S. Nelson. 2013. Common and scientific names of fishes from the United States, Canada, and Mexico. Seventh edition. American Fisheries Society, Special Publication 34, Bethesda, Maryland.

  • Page, L. M., and B. M. Burr. 1991. A field guide to freshwater fishes: North America north of Mexico. Houghton Mifflin Company, Boston, Massachusetts. 432 pp.

  • Page, L. M., and B. M. Burr. 2011. Peterson field guide to freshwater fishes of North America north of Mexico. Second edition. Houghton Mifflin Harcourt, Boston. xix + 663 pp.

  • Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea, and W.B. Scott. 1991. Common and scientific names of fishes from the United States and Canada. American Fisheries Society, Special Publication 20. 183 pp.

  • Simon, Thomas P. 2011. Fishes of Indiana. Indiana University Press. Bloomington, 345 pp.

  • Simons, A. M. 2004. Phylogenetic relationships in the genus Erimystax (Actinopterygii: Cyprinidae) based on the cytochrome b gene. Copeia 2004:351-356.

  • Smith, C.L. 1985. The Inland Fishes of New York State. New York State Department of Environmental Conservation. Albany, NY. 522pp.

  • Werner, R.G. 1980. Freshwater fishes of New York State. N.Y.: Syracuse University Press. 186 pp.

References for Watershed Distribution Map
  • Boschung, H. T., and R. L. Mayden. 2004. Fishes of Alabama. Smithsonian Institution Press, Washington, D.C. 960 pp.

  • Burr, B. M., and M. L. Warren, Jr. 1986a. Distributional atlas of Kentucky fishes. Kentucky Nature Preserves Commission, Scientific and Technical Series No. 4, Frankfort, Kentucky. 398 pp.

  • Cooper, E. L. 1983. Fishes of Pennsylvania and the northeastern United States. Pennsylvania State University Press, University Park. 243 pp.

  • Etnier, D. A., and W. C. Starnes. 1993. The fishes of Tennessee. University of Tennessee Press, Knoxville, Tennessee. xiv + 681 pp.

  • Jenkins, R. E., and N. M. Burkhead. 1994. Freshwater fishes of Virginia. American Fisheries Society, Bethesda, Maryland. xxiii + 1079 pp.

  • Lee, D. S., C. R. Gilbert, C. H. Hocutt, R. E. Jenkins, D. E. McAllister, and J. R. Stauffer, Jr. 1980. Atlas of North American freshwater fishes. North Carolina State Museum of Natural History, Raleigh, North Carolina. i-x + 854 pp.

  • Mettee, M. F., P. E. O'Neil, and J. M. Pierson. 1996. Fishes of Alabama and the Mobile Basin. Oxmoor House, Birmingham, Alabama. 820 pp.

  • Smith, C. L. 1985. The inland fishes of New York State. New York State Department of Environmental Conservation. Albany, New York, xi + 522 pp.

  • Stauffer, J. R., Jr., J. M. Boltz, and L. R. White. 1995. The fishes of West Virginia. Proceedings of the Academy of Natural Sciences of Philadelphia 146:1-389.

  • Trautman, M. B. 1981. The fishes of Ohio. Second edition. Ohio State University Press, Columbus, Ohio. 782 pp.

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