peppered chub

{{Short description|Species of fish}}

{{Speciesbox

| image = Usfws-peppered-chub-large.jpg

| status = EN

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=NatureServe |date=2013 |title=Macrhybopsis tetranema |page=e.T202154A19032145 |doi=10.2305/IUCN.UK.2013-1.RLTS.T202154A19032145.en |access-date=18 November 2021}}

|status2=LE

|status2_system=ESA

|status2_ref={{cite web|url=https://ecos.fws.gov/ecp/species/532|title=Peppered chub (Macrhybopsis tetranema)|website=Environmental Conservation Online System|publisher=U.S. Fish & Wildlife Service|access-date=20 January 2025}}

| taxon = Macrhybopsis tetranema

| authority = (Gilbert, 1886)

| synonyms = * Hybopsis tetranemus Gilbert, 1886

| synonyms_ref = {{Cof genus|genus=Macrhybopsis|access-date=14 March 2025}}

}}

The peppered chub (Macrhybopsis tetranema), also known as the Arkansas River speckled chub, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows. It historically occurred throughout the Arkansas River drainage, but today is found in the Ninnescah River, a small portion of the Arkansas River in Kansas and the South Canadian River between Ute and Meredith reservoirs in New Mexico and Texas. Its preferred habitat is shallow channels of large, permanently flowing, sandy streams, and prefers currents over a substrate of clean, fine sand.{{cite web | url = http://www.fishbase.se/summary/Macrhybopsis-tetranema.html | title = Peppered chub Macrhybopsis tetranema Gilbert, 1886 | accessdate = 19 November 2017 | publisher = Fishbase | editor1 = Rainer Froese | editor2 = Daniel Pauly | year = 2017}}

On February 25, 2022, the peppered chub was added to the endangered species list.{{cite web | url = https://biologicaldiversity.org/w/news/press-releases/peppered-chub-placed-on-endangered-list-2022-02-25/| title = Peppered Chub Placed on Endangered List | accessdate = 1 March 2022| publisher = Center for Biological Diversity| author = Michael Robinson| year = 2022}}