Lake sturgeon

Lake sturgeon, also known as the rock sturgeon, is a North American temperate freshwater fish, one of 27 species of sturgeon. Like other sturgeons, this species is a bottom feeder and has a partly cartilaginous skeleton, an overall streamlined shape, and skin bearing rows of bony plates on the sides and back.

The lake sturgeon uses its elongated, spade-like snout to stir up the substrate and sediments on the beds of rivers and lakes to feed. Four sensory organs (barbels) hang near its mouth to help the sturgeon locate bottom-dwelling prey. Lake sturgeons can grow to a large size for freshwater fish, up to 2.2 m long and 108 kg.

Main Photo Credit: "Lake sturgeon (Huso fulvescens), Michigan, USA" by Below Blue Water Diver, 2026. CC BY-NC 2.0.

Description: Wikipedia