Baeriidi

Baeriidi refers to a genus of sturgeons, a group of ancient fish belonging to the family Acipenseridae. The species within this genus are primarily found in freshwater and brackish environments across Eurasia. Baeriidi are characterized by their elongated bodies, bony plates called scutes along their sides, and barbels near their mouths used for detecting food on the riverbed. They are known for their commercially valuable caviar and flesh.

The most well-known species within the Baeriidi genus is the Siberian sturgeon, Acipenser baerii. This species is native to the river systems of Siberia, including the Ob, Yenisei, and Lena rivers. Siberian sturgeon are large fish, with some individuals reaching considerable lengths and weights. They are an important part of the aquatic ecosystem and have historically supported significant fisheries.

Other species sometimes included or closely related to the Baeriidi group inhabit various river basins in Russia and surrounding regions. These fish often share similar ecological roles and life histories, involving long migrations for spawning. Due to overfishing and habitat degradation, many Baeriidi species are now considered vulnerable or endangered, prompting conservation efforts and aquaculture initiatives. The study of Baeriidi is important for understanding freshwater fish biology and for managing these valuable natural resources.