Acipenser

Acipenser Temporal range: 70.6–Present Ma PreꞒ Ꞓ O S D C P T J K Pg N
Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Acipenseriformes
Family:	Acipenseridae
Genus:	Acipenser Linnaeus, 1758
Type species
Acipenser sturio Linnaeus, 1758
Species
17, see text
Synonyms[1]
Antacea Bory de St. Vincent 1822 non Rafinesque 1815 Antaceus Heckel ex Fitzinger & Heckel 1836 non Bonaparte 1846 Dinoctus Rafinesque 1818 Ellops Gistl 1848 non Mining 1832 Helops Brandt & Ratzeburg 1833 non Agassiz 1846 non Browne 1789 non Fabricius 1775 non Müller 1835 Sinosturio Jaekel 1929; Sturio Müller 1836 Sturio Rafinesque 1810 Acipenser (Sterletus) Rafinesque 1820 Sterletus (Rafinesque 1820) Brandt & Ratzeburg 1833 Sterleta Güldenstädt 1772 Acipenser (Euacipenser) Murgoci 1942 Acipenser (Gladostomus) Holly 1936 Acipenser (Lioniscus) (Heckel & Fitzinger 1836) Bonaparte 1846 Lioniscus Heckel & Fitzinger 1836 Acipenser (Parasinosturio) Artyukin 1995 Acipenser (Shipa) Brandt 1869

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. They are native to freshwater and estuarine systems of Eurasia and North America, and most species are threatened.^[2] Several species also known to enter near-shore marine environments in the Atlantic, Arctic and Pacific oceans.

This is an ancient genus, with fossil species known as far back as the Late Cretaceous. In fact, the fossils of two species (A. praeparatorum and A. amnisinferos) are known from mass mortality assemblages immediately following the Chicxulub impact, the beginning of the Cretaceous-Paleogene extinction event.^[3]

Living species

There are 17 living species:^[2]

• Acipenser baerii J. F. Brandt, 1869
  • Acipenser baerii baerii J. F. Brandt, 1869 (Siberian sturgeon)
  • Acipenser baerii baicalensis A. M. Nikolskii, 1896 (Baikal sturgeon)
  • Acipenser baerii stenorrhynchus A. M. Nikolskii, 1896 (Yenisei sturgeon)
• Acipenser brevirostrum Lesueur, 1818 (Shortnose sturgeon)
• Acipenser dabryanus A. H. A. Duméril, 1869 (Yangtze sturgeon)
• Acipenser fulvescens Rafinesque, 1817 (Lake sturgeon)
• Acipenser gueldenstaedtii J. F. Brandt & Ratzeburg, 1833 (Russian sturgeon)
• Acipenser medirostris Ayres, 1854 (Green sturgeon)
• Acipenser mikadoi Hilgendorf, 1892 (Sakhalin sturgeon)
• Acipenser naccarii Bonaparte, 1836 (Adriatic sturgeon)
• Acipenser nudiventris Lovetsky, 1828 (Fringebarbel sturgeon)
• Acipenser oxyrinchus Mitchill, 1815
  • Acipenser oxyrinchus desotoi Vladykov, 1955 (Gulf sturgeon)
  • Acipenser oxyrinchus oxyrinchus Mitchill, 1815 (Atlantic sturgeon)
• Acipenser persicus Borodin, 1897 (Persian sturgeon)
• Acipenser ruthenus Linnaeus, 1758 (Sterlet, Sterlet sturgeon)
• Acipenser schrenckii J. F. Brandt, 1869 (Japanese sturgeon)
• Acipenser sinensis J. E. Gray, 1835 (Chinese sturgeon)
• Acipenser stellatus Pallas, 1771 (Starry sturgeon)
• Acipenser sturio Linnaeus, 1758 (European sea sturgeon)
• Acipenser transmontanus J. Richardson, 1836 (White sturgeon)

Fossil species

There are 9 species known from fossil remains:^[4]

• †Acipenser albertensis Lambe 1902
• †Acipenser amnisinferos Hilton & Grande 2022^[3]
• †Acipenser eruciferus Cope, 1876
• Acipenser fulvescens Rafinesque, 1817 (also living)
• †Acipenser gigantissimus Nessov 1997
• †Acipenser molassicus Probst 1882
• †Acipenser praeparatorum Hilton & Grande 2022^[3]
• †Acipenser ornatus Leidy 1873
• Acipenser oxyrinchus Mitchell 1815 (also living)
• †Acipenser tuberculosus Probst 1882
• †Acipenser toliapicus Agassiz 1844 ex Woodward 1889

References

1. "Acipenseridae" (PDF). Deeplyfish- fishes of the world. Archived from the original (PDF) on 18 September 2017. Retrieved 18 May 2017.
2. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Acipenser". FishBase. May 2019 version.
3. Hilton, E. J.; Grande, L. (2022). "Late Cretaceous sturgeons (Acipenseridae) from North America, with two new species from the Tanis site in the Hell Creek Formation of North Dakota". Journal of Paleontology: 1–29. doi:10.1017/jpa.2022.81.
4. "Fossilworks: Acipenser". fossilworks.org. Retrieved 17 December 2021.

External links

• Data related to Acipenser at Wikispecies
• Media related to Acipenser at Wikimedia Commons
• The dictionary definition of acipenser at Wiktionary