Notropis shumardi
silverband shiner
Type Locality
Arkansas River, near Fort
Smith, Arkansas (Girard 1856).
Etymology/Derivation of Scientific Name
Notropis, Greek, “back
keel;” (Pflieger 1997). shumardi = patronym for George C. Shumard,
naturalist on the Mexican Boundary Survey (Etnier and Starnes 1993), in
honor of Shumard, who accompanied Girard on the boundary and railroad
surveys (Ross 2001).
Synonymy
Notropis illecebrosus
(Girard 1856).
Notropis brazosenis (Hubbs
and Bonham 1951).
Notropis shumardi
(Gilbert and Bailey 1962).
Gilbert and Bailey (1962)
replaced illecebrosus with shumardi and synonymized N.
brazosensis (Hubbs and Bonham 1951) under N. shumardi. They
considered uniqueness of N. brazosensis (i.e., having 8 instead of 9
anal fin rays and distinctive mouth and pharyngeal arch) as a morphological
variant within N. shumardi. However, “N. brazosensis”
represents a unique lineage, long separated from the Mississippi River
drainage population, including Texas populations in the Red River and
Cypress River drainage. Issue of “species” will not be resolved until
genetics analyses are completed.
Characters
Maximum size: Up to
103 mm (4.06 in).
Life colors: Straw
color with broad silvery lateral band. Dorsal scales lightly outlined with
black pigments. Upper and lower lips with dark pigment (Robison and Buchanan
1988). Breeding males without special coloration (Pflieger 1997).
Peritoneum silvery (Goldstein and Simon 1999).
Pharyngeal teeth count: 2, 4-4,2 or 1,4-4,1 (Hubbs et al. 1991); three upper teeth of inner row
noticeably hooked (Ross 2001).
Counts: 34-37 lateral
line scales; 8-9 anal fin soft rays (Miller and Robison 2004); Texas populations
commonly having eight anal fin soft rays (Gilbert and Bailey 1962).
Body shape: Robust
body shape, moderately deep; slab-sided fish (Robison and Buchanan 1988); snout is short and
rounded and the eye large (3.2-3.4 times into head length; Miller and Robison
2004).
Mouth position:
Terminal and oblique. Upper jaw level with mid-eye (Robison and Buchanan
1988). The lower jaw slightly included (Douglas 1974)
Morphology:
Dorsal origin just above the pelvic insertion; high pointed dorsal fin with
anterior rays about as long as the head (Miller and Robison 2004). Slightly
decurved lateral line; pectoral fin rounded. Breeding males very small
tubercles on head and pectoral fin rays (Pflieger 1997). Larvae exhibit
well-defined mid-ventral stripe by 4.6 mm TL (Fuiman et al. 1983).
Gut short (Goldstein and Simon 1999).
Distribution (Native and Introduced)
U.S. distribution:
Mississippi River drainage, ranges from South Dakota to Louisiana.
Southern most distribution Lavaca Bay, Texas (Gilbert and Bailey 1962); in
Tennessee, species common in main channel of the Mississippi River (Etnier
and Starnes 1993); mainstream Missouri River in Kansas (Platt 1974); remains
common around Fort Smith, AR (Robison and Buchanan 1988).
Texas distribution: N.
shumardi found in Red River and Cypress River drainage; “N.
brazosensis” found from Lavaca River drainage to Trinity River drainage
(Gilbert and Bailey 1962; Gilbert 1980). Warren et al. (2000) listed the
following drainage units for distribution of Notropis shumardi in the
state: Red River (from the mouth upstream to and including the Kiamichi
River), Sabine Lake (including minor coastal drainages west to Galveston
Bay), Galveston Bay (including minor coastal drainages west to mouth of
Brazos River), Brazos River, and Colorado River.
[Additional literature
noting collection of this species from Texas locations includes, but is not
limited to the following: Jurgens (1954); Oyster Creek (Linam and
Kleinsasser 1987); Gelwick and Burgess (2002).]
Abundance/Conservation status (Federal, State,
Non-governmental organizations)
Currently secure (Platt 1974,
Robison and Buchanan 1988, Etnier and Starnes 1993; Warren et al. 2000).
However, evidence of population declines in the lower Brazos River (D. T.
Runyan and T. H. Bonner, unpublished data). According to Haslouer et al.
(2005), little evidence exists that this species currently sustains
reproductively viable populations in Kansas; current status is Threatened in
the state; Endangered status has been proposed.
Habitat Associations
Macrohabitat: Large
rivers, but often found in smaller tributaries and oxbows (Gilbert 1980;
Linam et al. 1994; Winemiller et al. 2004; Li and Gelwick 2005). Common in
oxbow lakes that frequently reconnect to Brazos River mainstem (Zeug, et al.
2005).
Mesohabitat: Main
channel with moderate to swift current velocities and moderate to deep
depths; associated with turbid water over silt, sand, and gravel (Gilbert
1980, Robison and Buchanan 1988, Cross 1995); N. shumardi is tolerant of
high
turbidities (Gilbert and Bailey 1962). Li (2003) reported that the species
was commonly collected in shallow river-margin samples during the summer and
winter, in the lower Brazos River.
Biology
Spawning season:
Occurs late May through mid August (Suttkus 1980; Miller and Robison 2004).
In Texas, breeding season may occur from late-May or early May until the
mid-fall (Edwards 1997).
Spawning location:
Main channel, breeding aggregations were observed over hard sand to fine
gravel substrates in water 1-2 m deep in strong current (Conner 1977).
Reproductive strategy:
Likely broadcast spawning;
Fecundity: No
information at this time.
Age at maturation:
Likely age 1 (Edwards 1997).
Migration: Might
migrate into tributaries for spawning, especially during high flow in Brazos
River mainstem (Winemiller 2004).
Growth and population
structure: No information at this time.
Longevity: Edwards (1997) reported maximum lifespan of approximately 2
years.
Food habits: No
information at this time.
Phylogeny and morphologically similar fishes
Subgenus Alburnops
along with chub shiner (N. potteri) and river shiner
(N. blennius)(Schonhuth and Doadrio
2003; Snelson 1968) instead of subgenus Notropis (Bielawski and Gold
2001). N. shumardi is
superficially similar to the deeper-bodied form of emerald shiner (N. atherinoides) but has the dorsal origin just above the pelvic insertion
rather than far behind it (Miller and Robison 2004).
Host Records
Gyrodactylus illigatus
(Harris et al. 2004). Dactylogyrus argenteus and D. ornatus
(Mizelle and McDougal 1970).
Commercial or Environmental Importance
In Kansas, most sandbar
habitat occupied by this species has been eliminated by extensive
modification of the Missouri River for navigational purposes (Cross and
Collins 1995; Haslouer et al. 2005).
References
Bielawski, J.P., and J.R. Gold. 2001. Phylogenetic relationships of Cyprinid
fishes in subgenus Notropis inferred from Nucleotide sequences of the
mitochondrially encoded cytochrome b gene. Copeia 2001(3):656-667.
Conner, J.V. 1977. Zoogeography of freshwater fishes in western Gulf Slope
drainages between the Mississippi and the Rio Grande. Doctoral dissertation.
Tulane University.
Cross, F.B. and J.T. Collins. 1995. Fishes in Kansas. University Press of
Kansas, Lawrence. 357pp.
Douglas, N.H. 1974. Freshwater Fishes of Louisiana. Claitor’s Publishing
Division, Baton Rouge, Louisiana. 443 pp.
Edwards, R.J. 1997. Ecological profiles for selected stream-dwelling Texas
freshwater fishes. Report to the Texas Water Development Board. 89 pp.
Etnier, D.A. and W.C. Starnes. 1993. The Fishes of Tennesee. The University
of Tennesee Press, Knoxville. 681pp.
Fuiman, L.A., J.V. Conner, B.F. Lathrop, G.L. Buynak, D.E. Snyder, and J.J.
Loos. 1983. State of the art identification for cyprinid fish larvae from
Eastern North America. Trans. Amer. Fish. Soc. 112:319-332.
Gelwick, F.P., and C.C. Burgess. 2002. Aquatic studies at the proposed
George Parkhouse I reservoir site on the South Sulphur River in northeast
Texas. Report to the Texas Water Development Board. 114 pp.
Gilbert, C.R. 1980. Notropis shumardi (Girard),
Silverband shiner. Pp.308 in D. S. Lee, et al. Atlas of North
American Freshwater Fishes. N.C. State Mus. Nat. Hist., Raliegh, i-r+854pp.
Gilbert, C.R. and R.M. Bailey. 1962. Synonomy, Characters, and Distribution
of the American Cyprinid Fish Notropis shumardi. Copeia
1962(4):807-819.
Girard, C.F. 1856. Researches upon the Cyprinoid fishes inhabiting the fresh
waters of the United States of America, west of the Mississippi Valley, from
specimens in the Museum of the Smithsonian Institution. Proceedings of the
Academy of Natural Sciences of Philadelphia 8:165-213.
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. 671 pp.
Harris, P.D. 2004. Nominal species of the genus Gyrodactylus von Nordmann
1832 (Monogenea: Gyrodactylidae), with a list of principal host species.
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Triplett, J.T. Collins, D.A. Distler, D.G. Huggins, and W.J. Stark. 2005.
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Academy of Science 108(1/2):32-46.
Hubbs, C.L. and K. Bonham. 1951. New Cyprinid Fishes of the Genus
Notropis from Texas. The Texas Journal of Science. 1951(1):91-110.
Hubbs, C., R.J. Edwards and G.P. Garrett. 1991. An annotated checklist of
freshwater fishes of Texas, with key to identification of species. Texas
Journal of Science, Supplement 43(4):1-56.
Jurgens, K.C. 1954. Records of Four Cyprinid Fishes of the Genera Notropis
and Semotilus from Central Texas. Copeia. 1954(2):155-156.
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temporal variation of fish assemblages in the lower Brazos River, Texas.
M.S. Thesis, Texas A&M University, College Station. 71 pp.
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Austin County, Texas. Texas Parks and Wildlife Department to Texas Water
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Oklahoma Press, Norman. 450 pp.
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Mississippi, Jackson. 624pp.
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