Fish
Shovelnose Sturgeon
Scaphirhynchus platorynchus · also called shovelnose sturgeons
A shovelnose sturgeon holds steady against strong Mississippi River current, its flattened, shovel-shaped snout stirring loose bottom sediment while sensitive barbels feel for whatever small invertebrates the disturbance exposes.
Overview
The shovelnose sturgeon, Scaphirhynchus platorynchus, is the smallest sturgeon species native to North America, found across the Mississippi and Missouri River systems. Its flattened, sediment-stirring snout and sensory barbels make it a specialised bottom feeder well adapted to life in strong river current.
Small sturgeon, same ancient armour
Despite being far smaller than its larger sturgeon relatives, the shovelnose sturgeon retains the same rows of bony armour plates and ancient body plan, a scaled-down but unmistakably sturgeon-shaped fish built for a life spent working the riverbed.
Status
Least Concern — present across much of its Mississippi and Missouri River range, though some regional declines have occurred from damming and harvest pressure.
Shovelnose Sturgeon: common questions
Why does the shovelnose sturgeon have such a flat, wide snout?
A shovelnose sturgeon has a notably flattened, broad, shovel-shaped snout well suited to stirring up loose river-bottom sediment, exposing small invertebrate prey hidden within that the sturgeon then detects using sensitive barbels positioned near its mouth rather than relying primarily on vision.
How does the shovelnose sturgeon compare in size to other sturgeon?
The shovelnose sturgeon is the smallest sturgeon species native to North America, reaching a considerably smaller adult size than larger sturgeon relatives such as the lake sturgeon or white sturgeon, though it retains the same general armoured body plan characteristic of the sturgeon family.
What kind of rivers does the shovelnose sturgeon prefer?
A shovelnose sturgeon is well adapted to living in the strong current of large, actively flowing rivers, generally favouring the Mississippi and Missouri River systems and their major tributaries rather than slower, calmer water bodies.
Where does the shovelnose sturgeon live?
The shovelnose sturgeon is native to the Mississippi and Missouri River systems and their major tributaries across the central United States, generally found within strong river current where its flattened snout and sediment-stirring feeding strategy are most effective.