Common name: Silverband Shiner
available through www.itis.gov
Identification: Page and Burr (1991); Etnier and Starnes (1993); Pflieger (1997). Gilbert and Bailey (1962) synonymized N. brazosensis, the Brazos River shiner, with N. shumardi. However, it is possible that the two are distinct (Gilbert 1998).
Size: 10 cm.
Native Range: Large rivers of Missouri-Mississippi basin (mainly Missouri, Mississippi, Illinois, Kaskaskia, lower Ohio, Arkansas, and Red rivers), from South Dakota and central Illinois south to Gulf; Gulf Coast drainages, Texas, from Sabine Lake (apparently introduced) to Colorado River (Page and Burr 1991). The Notropis brazosensis form apparently is restricted to the Brazos River, Texas (Hall 1956).
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Notropis shumardi are found here.
Table last updated 9/30/2019
† Populations may not be currently present.
Means of Introduction: Unknown; possible bait bucket releases. The first record of this species in the Red River drainage is that of D. G. Miller (1955) who reported its occurrence near the mouth of the Blue River in Bryan County, Oklahoma. He pointed out the close proximity of tributaries of the Brazos and Red rivers and the possibility of the movement of this and other minnows across the divide during torrential rains. However, he admitted that such a conclusion in no way contradicts the possibility of a bait bucket release. Hubbs and Bonham (1951) regarded the N. brazosensis form as being largely endemic to the Brazos River drainage of Texas (also see Notropis potteri account. Consequently, Hall (1956) considered a bait bucket release as the possible mode of entry into the Red River drainage. He also noted that the N. brazosensis form was being used as a bait fish. However, Hall did not rule out the possibility of natural distribution. Yurgens (1954) reported the N. brazosensis form from Lake Travis (Colorado River drainage) in Texas and speculated that this fish and several other recently discovered minnows were likely introduced as a bait release into the Colorado River drainage. He based his conclusion on the fact that bait dealers had been transporting Brazos River minnows in large numbers to fishing camps on Lake Travis near Austin. In discussing various alternatives to explain its presence in the Red River, Gilbert and Bailey (1962) noted that the Red River may have been "repopulated" from the Texas coastal streams by transfer by man. They reported that there was no positive evidence for the presence of Notropis shumardi in the middle part of the Red River prior to 1953, but added that this is not compelling since the area in question had previously been little collected.
Status: Reported in Louisiana and Texas. Established in Oklahoma.
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
Revision Date: 12/5/2003
Peer Review Date: 12/5/2003
Nico, L., 2020, Notropis shumardi (Girard, 1856): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=610, Revision Date: 12/5/2003, Peer Review Date: 12/5/2003, Access Date: 2/29/2020
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.