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Pallid sturgeon turn whiter as they age and younger specimens are easily confused with adult shovelnose sturgeon since they are similar in color. [17] Like the shovelnose sturgeon, their tails are heterocercal , with the top tail fin being longer than the bottom fin, though this is more pronounced in pallid sturgeon.
The shovelnose sturgeon (Scaphirhynchus platorynchus) [5] is the smallest species of freshwater sturgeon native to North America. It is often called hackleback , sand sturgeon , or switchtail . Switchtail refers to the long filament found on the upper lobe of the caudal fin (often broken off as adults).
Scaphirhynchus is a genus of sturgeons native to North America. All species in this genus are considered to be threatened with extinction or worse. [2] [3] [4] As of 2023, the pallid sturgeon (S. albus) [3] and the Alabama sturgeon (S. suttkusi) [4] are critically endangered according to the International Union for Conservation of Nature.
Pallid sturgeon, Scaphirhynchus albus [84] Shovelnose sturgeon, Scaphirhynchus platorynchus [85] The three types of sturgeon native to Arkansas are uncommon, and two of the species are listed as endangered nationwide. The lake sturgeon is near the southern end of its range in Arkansas, more commonly found in the Upper Midwest. [86]
Globally, sturgeon fisheries are of great value, primarily as a source for caviar, but also for flesh. [42] Several species of sturgeon are harvested for their roe which is processed into caviar—a delicacy, and the reason why caviar-producing sturgeons are among the most valuable and endangered of all wildlife resources. [43]
It a statement issued Dec. 7 the six U.S. representatives and two senators highlighted the robust sturgeon population in Wisconsin, the strong state-based management program as well as the ...
Science & Tech. Shopping. Sports
The Shovelnose sturgeon is the only sturgeon that has been recorded in Kansas since 1998. Family Acipenseridae (Sturgeons) Lake sturgeon (Acipenser fulvescens) (Ex) Pallid sturgeon (Scaphirhynchus albus) (Pe) Shovelnose sturgeon (Scaphirhynchus platorynchus) Family Polyodontidae (Paddlefish) American paddlefish (Polyodon spathula)