Search results
Results from the WOW.Com Content Network
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.
Most living species of Acipenseriformes are classified as threatened (mostly endangered or critically endangered) by the International Union for Conservation of Nature. The Chinese paddlefish was last seen alive in 2003, and was considered to have gone extinct sometime between 2005 and 2010 by the Yangtze River Fisheries Research Institute in ...
The family contains 8 extinct fossil species and 28 extant species/subspecies (include 1 species of Sterlet and 2 species of living fossils), in 4 genera. This list uses the original classification scheme: Family Acipenseridae. Genus Acipenser Linnaeus, 1758 †Acipenser albertensis Lambe 1902 > Acipenser baerii J. F. Brandt, 1869 (Siberian ...
The sterlet (Acipenser ruthenus in Linnaeus' classification) is the last of the five native sturgeon species inhabiting the Middle and Upper Danube River. Its population has dropped significantly, mainly due to the degradation of main habitats, spawning grounds and foraging grounds.
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 Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) is a member of the family Acipenseridae, and, along with other sturgeon, it is sometimes considered a living fossil. The Atlantic sturgeon is one of two subspecies of A. oxyrinchus , the other being the Gulf sturgeon ( A. o. desotoi ).
The shortnose sturgeon (Acipenser brevirostrum) is a small and endangered species of North American sturgeon. The earliest remains of the species are from the Late Cretaceous Period, over 70 million years ago. [5] Shortnose sturgeons are long-lived and slow to sexually mature.
Acipenser atlanticus Rafinesque 1820 corrig. The European sea sturgeon ( Acipenser sturio ), also known as the Atlantic sturgeon or common sturgeon , is a species of sturgeon native to Europe. It was formerly abundant, being found in coastal habitats all over Europe .