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Acipenser is a genus of sturgeons.With 17 living species (others are only known from fossil remains), it is the largest genus in the order Acipenseriformes.The genus is paraphyletic, containing all sturgeons that do not belong to Huso, Scaphirhynchus, or Pseudoscaphirhynchus, with many species more closely related to the other three genera than they are to other species of Acipenser.
A study published in 2020 reported a successful hybridization between a Russian sturgeon (Acipenser gueldenstaedtii) and an American paddlefish (Polyodon spathula), indicating that the two species can breed with one another despite their lineages having been separated for hundreds of millions of years.
Acipenser sturionaster Brusina 1902 The Adriatic sturgeon ( Acipenser naccarii ) is a species of fish in the family Acipenseridae . It is native to the Adriatic Sea and large rivers which flow in it of Albania , Greece , Italy , Montenegro , Croatia , Bosnia and Herzegovina and Slovenia .
Acipenser brevirostrum Lesueur, 1818 (Shortnose sturgeon) Acipenser dabryanus A. H. A. Duméril, 1869 (Yangtze sturgeon) †Acipenser cruciferus (Cope 1876) †Acipenser eruciferus Cope 1876; Acipenser fulvescens Rafinesque, 1817 (Lake sturgeon) †Acipenser gigantissimus Nessov 1997; Acipenser gueldenstaedtii J. F. Brandt & Ratzeburg, 1833 ...
White sturgeon (Acipenser transmontanus) is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes. They are an anadromous (migratory) fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California .
An Atlantic sturgeon at the Aquarium du Québec. Rather than having true scales, the Atlantic sturgeon has five rows of bony plates known as scutes.Specimens weighing over 800 lb and nearly 15 ft in length have been recorded, but they typically grow to be 6–8 ft (1.8–2.4 m) and no more than 300 lb (140 kg).
Acipenser oxyrinchus can grow to a length of 14 ft (4.3 m) and a weight of 800 lb (360 kg). The lifespan of this species can be around 60 years. The lifespan of this species can be around 60 years. The color of Acipenser oxyrinchus is bluish-black or olive brown with lighter sides and a white belly.
The Siberian sturgeon (Acipenser baerii) is a species of sturgeon in the family Acipenseridae.It is most present in all of the major Siberian river basins that drain northward into the Kara, Laptev and East Siberian Seas, including the Ob, Yenisei (which drains Lake Baikal via the Angara River) Lena, and Kolyma Rivers.