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    Erimyzon oblongus
    Eastern Creek Chubsucker

    Taxonomic Hierarchy

    Life
    Animalia
    Chordata
    Actinopterygii
    Cypriniformes
    Catostomidae (Suckers)
    Erimyzon
    Erimyzon oblongus (Eastern Creek Chubsucker)

    Description

    All text below is derived from a January 2013 copy of Dr. Timothy Bonner's website at Texas State University. That content was derived primarily from published literature. We are aware of some conflicts with the museum record and the content below will evolve as the new, expanded UT and Texas State Fishes of Texas project team members are able to update it. We invite collaborations to improve and expand the species account content. Please contact us if you wish to help, or if you discover flaws in our species account content that you can address.

    Type Locality

    New York (Mitchill 1815).

     

    Etymology/Derivation of Scientific Name

    Erimyzon, Greek, meaning “to suck”; oblongus, Latin, meaning “oblong” (Pflieger 1975).

     

    Synonymy

    Cyprinus oblongus Mitchell1815:459

    Erimyzon oblongus claviformis Cook 1959:85.

     

    Characters

    Maximum size: The maximum size reported length is 419mm (16.5 in) TL for the larger Atlantic Slope subspecies (Carlander 1969). The Mississippi River and Gulf Slope subspecies is smaller with a maximum reported size of 376mm (14.8 in) TL (Boschung and Mayden 2004); however most adult fish are smaller (Ross 2001).

     

    Coloration: Color pattern (except in young with two dark stripes) consists of narrow vertical bars (Hubbs et al. 1991). The back and upper sides are bluish green to brown, becoming more yellow or gold on the sides. The undersides are white to yellow. Scale margins are dark giving the upper sides a cross-hatched appearance. There are five to eight dark blotches on the sides, which are connected by dorsal saddles. The blotches vary from being very distinct vertical bars (especially in young fish) to indistinct or coalesced into a lateral band (in adults). Paired and median fins are yellow orange to gray, and median fins tend to be darker then paired fins. Young fish have a broad black lateral stripe with a yellow stripe above it that runs from the snout to the tip of the caudal fin base. Breeding males are dark brown above, pink-yellow, below, with orange paired fins and yellow median fins (Ross 2001).

     

    Counts: 56-76 pharyngeal teeth (Eastman 1977); 39-43 (usually 39-41) longitudinal scale rows; 4-18 dorsal fin rays (Hubbs et al. 1991); 7 anal rays; 13-16 pectoral rays; 9 (8-9) pelvic rays (Ross 2001).

     

    Body shape: Cylindrical (Ross 2001); eye smaller (eye length contained more then two times snout length; Hubbs et al. 1991).

     

    Mouth position: Subterminal and oblique (Hubbs et al. 1991).

     

    External morphology: Air bladder with two chambers; dorsal fin base less than one-fourth standard length; lateral line absent (Hubbs et al. 1991). Breeding males have three large tubercles on each side of head and a bilobed anal fin (Ross 2001).

     

    Distribution (Native and Introduced)

    U.S. distribution: Atlantic slope streams from Maine to Altamaha drainage of Georgia; Gulf slope streams east to Escambia River drainage, Alabama (single population) and west to San Jacinto system Texas. Mississippi Valley in Louisiana, Arkansas, southeast Oklahoma, upland Missouri, Mississippi, west Tennessee, West Kentucky, south Great Lakes drainage in southern tributaries to lakes Michigan, Erie, and Ontario (Wall and Gilbert 1980).

     

    Texas distribution: Occurs in eastern Texas streams from the Red River southward to the San Jacinto Drainage; an early record exists from the Devils River (Hubbs et al. 1991).

     

    Abundance/Conservation status (Federal, State, NGO)

    Not listed as threatened or endangered by Texas Parks and Wildlife Department

    (2006). Populations in the southern Unites States are currently stable (Warren et al. 2000). Hubbs et al. (1991) listed Erimyzon oblongus as a species of special concern, in Texas.

     

    Habitat Associations

    Macrohabitat: Occupies small rivers and creeks often highly vegetated (Wall and Gilbert 1980), also less often in ponds (Wagner and Cooper 1963).

     

    Mesohabitat: Wide variety of gradients, bottom types, and vegetation depending somewhat on age and stage of reproductive cycle. Seldom if ever occupies impoundments or springs, but may be taken in spring fed creeks. Young typically in head water rivulets. Adults usually not taken in large series. Populations apparently declining in streams subject to siltation (Wall and Gilbert 1980).

     

    Biology

    Spawning season: March to May, when the water temperature reaches about 17 degrees C (Richardson 1913; Breder and Rosen 1966; Boschung and Mayden 2004). Carnes (1958) notes the eastern subspecies spawns at water temperature of 11 degrees C, with most activity at night. The western subspecies spawns at water temperatures of 12-24 degrees C, spawning in the afternoon (Curry and Spacie 1984; Page and Johnston 1990).

     

    Spawning habitat: Usually in small creeks, also in ponds or lakes that lack tributary streams (Carnes 1958). In Indiana, small cleared depressions on the sand bottom of pools just above riffles (Curry and Spacie 1984). Lithopelagophils; rock and gravel spawners with benthic larvae that hide beneath stones (Hankinson 1920; Page and Johnston 1990; Simon 1999).

     

    Reproductive strategy: Males guard spawning location (Curry and Spacie 1984). Hankinson (1920) observed stone pulling by males and apparent acts of spawning. Prior to spawning males defend territories in moderately swift water over beds of gravel or near pits constructed by stonerollers or creek chubs. Males apparently do not initiate the digging of nest pits, but will modify existing pits by pushing stones around with their snouts. Females congregate upstream of males in quiet water, periodically drifting tail first into male territories. Once in a male’s territory, the female digs in the gravel with her snout, apparently signaling to the male that she is ready to spawn. In contrast to most species of suckers, pair spawning is much more common than group spawning, perhaps due to the shallowness of the usual spawning habitat. Actual spawning lasts three to five seconds as the male presses against female. Both release gametes while quivering and stirring the substratum with their caudal and anal fins (Page and Johnson 1990).

     

    Fecundity: Fertilized eggs of the eastern subspecies E. o. oblongus are demersal and semiadhesive, with an average diameter of 1.8 mm; color varies from light to deep golden yellow and yolk occupies most of egg; no oil drops in the yolk mass; hatching occurs in 96 hours at a temperature of 20 degrees C (Kay et al. 1994). Egg production varies from 8,694-83,013 in fish 111-1110 g (Carnes 1958). Regardless of high fecundity this species is not found in high numbers (Boschung and Mayden 2004).

     

    Age at maturation:

     

    Migration: An upstream migration often precedes spawning (Breder and Rosen 1966).

     

    Growth and population structure: For the western subspecies E. o. claviformis TL averages 48-51 mm after one year and 104-107mm at end of the second year (Lewis and Elder 1953; Carlander 1969). There is no sexual dimorphism in size (Ross 2001). Newly hatched protolarvae are 4.8-6.6 mm TL (Kay et al. 1994).

     

    Longevity: Females may live for 6 or 7 years, though males only live for 5 years (Carnes 1958; Wagner and Cooper 1963; Carlander 1969).

     

    Food habits: Invertivore; major food items include copepods, cladocerans, chironomid larvae and other bottom organisms (Goldstein and Simon 1999). Diet includes organic detritus (including plant fragments), algae, diatoms, midge larvae (Diptera), small clams, and zooplankton (primarily copepods). Food habits are similar to E. sucetta, the lake chubsucker (Flemmer and Woolcott 1966; Gatz 1979; Sheldon and Meffe 1993). Feeding begins 7.4 days after hatching at a length of 7.7 mm TL (Kay et al. 1994).

     

    Phylogeny and morphologically similar fishes:

    Two subspecies recognized, E. o. claviformis, which occurs in the Gulf of Mexico and Mississippi River Basins, and the Atlantic Slope subspecies E. o. oblongus (Wall and Gilbert 1980). E. oblongus is most closely related to E. sucetta, and two species are known to hybridize (Hanley 1977). The genus Erimyzon is most closely related to Minytrema, and both genera are placed within the tribe Moxostomatini (Smith 1992).

     

    Erimyzon oblongus is most similar to the lake chubsucker. It differs from the lake chubsucker in its higher lateral scale count (usually 39-40 or more versus 37 or fewer) and its lower dorsal ray count (10-11 versus 11-12). (Gilbert and Wall 1985). Compared to lake chubsuckers, creek chubsuckers have more cylindrical bodies, lighter colored fins and less deeply emarginated caudal fins (Ross 2001).

     

    Host Records:

    Cestoda: Monobothrium sp. Biacetabulum sp. (Arnold et. al 1967); Acanthocephala: Neoechinorhynchus prolixoides, Crustacea: Lernaea cyprinacea (Hoffman 1967).

     

    Commercial or Environmental Importance

     

     

    References

    Arnold, J.G., Jr., H.E. Schafer, M.S., R.L. Vulliet.1967. The parasites of the freshwater fishes of Louisiana. Proceedings of the 21st annual conference Southeastern Association of Game and Fish Commissioners. 1967:531-542.

    Boschung, H.T., Jr., and R.L. Mayden. 2004. Fishes of Alabama. Smithsonian Books, Washington. 736 pp.

    Breder, C.M. and D. E. Rosen. 1966. Modes of Reproduction in fishes. American Museum of Natural History. The Natural History Press, Garden City, N.Y.

    Carlander, K.D. 1969. Handbook of Freshwater fishery biology. Vol.1. The Iowa State Univ. Press, Ames.

    Carnes, W.C., Jr. 1958. Contributions to the biology of the eastern creek chubsucker, Erimyzon oblongus (Mitchill). Master’s thesis, North Carolina Sate Coll., Raleigh.

    Cook, F.A. 1959. Freshwater fishes in Mississippi. Mississippi Game and Fish Commision, Jackson.

    Curry, K. D. and A. Spacie. 1984. Differntial Use of Stream Habitat by Spawning Catostomids. American Midland Naturalist 111(2):267-279.

    Eastman, J.T. 1977. The pharyngeal bones and teeth of catostomid fishes. American Midland Naturalist 97(1):68-88.

    Flemer, D.A. 1966. Food habits and distribution of the fishes of the Tuckahoe Creek, Virginia, with special emphasis on the bluegill, Lepomis m. macrochirus Rafinesque. Chesapeake Sci. 7(2):75-89.

    Gatz, J.A. 1979. Ecological morphology of freshwater stream fishes. Tulane Stud. Zool. Bot. 21:91-124.

    Gilbert, C.R. and B.R. Wall Jr. 1985. Status of the catostomid fish Erimyzon oblongus from eastern Gulf slope drainages in Florida and Alabama. Fla. Sci. 48(4):202-207.

    Goldstein, R.M., and T.P. Simon. 1999. Toward a united definition of guild structure for feeding ecology of North American freshwater fishes. pp. 123-202 in T.P. Simon, editor. Assessing the sustainability and biological integrity of water resources using fish communities. CRC Press, Boca Raton, Florida.

    Hankinson, T.L. 1920. Notes on the life histories of Illinois fish. Trans. Ill. St. Acad. Sci. Springfield 12(1919):132-150.

    Hanley, R.W. 1977. Hybridization between the chubsuckers Erimyzon oblongus and E. sucetta in North Carolina. In: Abstracts, 57th annual meeting of the American Society of Ichthyologists and Herpetologists, Gainesville Fla.

    Hoffman G.L. 1967. Parasites of North American Freshwater Fishes. University of California Press. Berkeley and Los Angeles, CA 1-486.

    Hubbs, C. L., R.J. Edwards and G.P. Garret. 1991. An annotated checklist of freshwater fishes of Texas, with key to identification of species. Texas Journal of Science, Supplement 43(4):1-56.

    Kay, L.K., R. Wallus, and B.L. Yeager. 1994. Reproductive Biology and Early Life History of Fishes in the Ohio River Drainage. Vol. 2. Catostomidae. Tennessee Valley Authority, Chattanooga, Tennessee.

    Lewis, W.M. and D. Elder. 1953. The fish population of the head waters of a spotted bass stream in Southern Illinois. Trans. Amer. Fish Soc. 82:193-202.

    Mitchell, S.L. 1815. The fishes of New York described and arranged. Trans. Literary Phil. Soc. New York 1:355-492.

    Page, L.M. and C.E. Johnston. 1990. Spawning in the creek chubsucker, Erimyzon oblongus, with a review of spawning behavior in suckers (Catostomidae) Env. Biol. Fish. 27:265-272.

    Richardson, R.E. 1913. Observations on the breeding habits of fishes at Havana, Illinois, 1910 and 1911. Bull. Ill. St. Lab. Nat. Hist. 9:405-416.

    Ross, S.T. 2001. Inland fishes of Mississippi. University Press of Mississippi, Jackson Mississippi. 624 pp.

    Sheldon, A.L. and G.K. Meffe. 1993. Multivariate analysis of feeding relationships of fishes in blackwater streams. Env. Biol. Fish. 37:161-171.

    Simon, T. P. 1999. Assessment of Balon’s reproductive guilds with application to Midwestern North American Freshwater Fishes, pp. 97-121. In: Simon, T.L. (ed.). Assessing the sustainability and biological integrity of water resources using fish communities. CRC Press. Boca Raton, Florida. 671 pp.

    Smith, G.R. 1992. Phylogeny and biogeography of Catostomidae, freshwater fishes of North America and Asia, pp. 778-826 In: Systematics, historical ecology, and North American freshwater fishes. R.L. Mayden ed. Stanford Univ. Press, Stanford, Calif.

     Texas Parks and Wildlife Department, Wildlife Division, Diversity and Habitat Assessment Programs. County Lists of Texas' Special Species. [30 May 2006]. Available online at http://gis.tpwd.state.tx.us/TpwEndangeredSpecies/DesktopModules/AcountyCodeKeyForWebESDatabases.pdf

    Wagner, C.C. and E.L. Cooper. 1963. Population Density, growth, and fecundity of the creek chubsucker, Erimyzon oblongus. Copeia 1963(2):350-357.

    Wall, B.R. Jr. and C.R. Gilbert. 1980. Erimyzon oblongus (Mitchill), Creek Chubsucker.pp.397 in D.S. Lee et al. Atlas of North American Freshwater Fishes. N.C. State Mus. Nat. Hist., Raleigh, i-r+854 pp.

    Warren, L. W., Jr., B. M. Burr, S. J. Walsh, H. L. Bart, Jr., R. C. Cashner, D. A. Etnier, B. J. Freeman, B. R. Kuhajda, R. L. Mayden, H. W. Robison, S. T. Ross, and W. C. Starnes. 2000. Diversity, Distribution, and Conservation status of the native freshwater fishes of the southern United States. Fisheries, Conservation. 25(10):7-29.

     

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