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Georgia Explorer

Robust redhorse sucker

Robust redhorse sucker

(Moxostoma robustum)

This freshwater fish was once thought to be extinct. First described in 1870, the robust redhorse sucker was not correctly identified again until over 100 years later. The only known populations of this species are in several rivers in Georgia, North Carolina and South Carolina.

The robust redhorse sucker is found near silty to rocky pools and in slow-flowing sections of small to medium rivers. Spawning occurs in coarse gravel habitats from late April to early July. Also called the “smallfin redhorse sucker”, it is one of the most threatened fish in North America. It is listed as endangered by the Georgia Department of Natural Resources.

Look for the robust redhorse sucker in its own exhibit in the Georgia Explorer gallery.

Fun Facts

  • The robust redhorse sucker is a heavy-bodied fish that can weigh up to 17 pounds.
  • It has bronze coloration on the back and sides and adults are faintly striped on the lower sides. The juvenile has intense red on the caudal fin.
  • This sucker has large molar-like teeth, used for crushing its prey.
  • The robust redhorse sucker is believed to live at least 25 years.
  • State fishery departments have been restocking the redhorse sucker in areas where it formerly occurred.
  • Download full fact sheet

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