Lake sturgeon

Lake sturgeon
Temporal range: Pleistocene - Recent[1][2]
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Vulnerable  (NatureServe)[4]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acipenseriformes
Family: Acipenseridae
Genus: Acipenser
Species:
A. fulvescens
Binomial name
Acipenser fulvescens
(Rafinesque, 1817)
Synonyms[5][6]
  • Sterletus serotinus (Rafinesque 1820)
  • Acipenser (Huso) anasimos Duméril 1870
  • Acipenser (Huso) anthracinus Duméril 1870
  • Acipenser (Huso) atelaspis Duméril 1870
  • Acipenser (Antaceus) buffalo Duméril 1867
  • Acipenser carbonarius Agassiz 1850
  • Acipenser cataphractus Rapp ex Gray 1835
  • Acipenser (Antaceus) cincinnati Duméril 1867
  • Acipenser (Huso) copei Duméril 1870
  • Acipenser (Huso) honneymani Duméril 1870
  • Acipenser (Huso) kirtlandii Duméril 1870
  • Acipenser laevis Agassiz 1850
  • Acipenser (Huso) lamarii Duméril 1870
  • Acipenser liopeltis Günther 1870
  • Accipenser macrostomus Rafinesque 1820
  • Acipenser maculosus Lesueur 1818
  • Acipenser (Huso) megalaspis Duméril 1870
  • Acipenser (Huso) nertinianus Duméril 1870
  • Accipenser ohiensis Rafinesque 1820
  • Acipenser (Huso) paranasimos Duméril 1870
  • Acipenser (Huso) platyrhinus Duméril 1870
  • Acipenser (Huso) rafinesquii Duméril 1870
  • Acipenser (Huso) rauchii Duméril 1870
  • Acipenser rhynchaeus Agassiz 1850
  • Acipenser (Huso) richardsoni Duméril 1870
  • Acipenser (Huso) rosarium Duméril 1870
  • Acipenser rubicundus Lesueur 1818
  • Acipenser rupertianus Richardson 1836

The lake sturgeon (Acipenser fulvescens), also known as the rock sturgeon,[7] is a North American temperate freshwater fish, one of about 25 species of sturgeon. Like other sturgeons, this species is a bottom feeder and has a partly cartilaginous skeleton, an overall streamlined shape, and skin bearing rows of bony plates on the sides and back.

The lake sturgeon uses its elongated, spade-like snout to stir up the substrate and sediments on the beds of rivers and lakes to feed. Four sensory organs (barbels) hang near its mouth to help the sturgeon locate bottom-dwelling prey. Lake sturgeons can grow to a large size for freshwater fish, topping 7.25 ft (2.2 m) long and 240 lb (108 kg).[8]

  1. ^ "Fossilworks: Acipenser fulvescens".
  2. ^ "Fossilworks: Acipenser".
  3. ^ Haxton, T.; Bruch, R. (2022). "Acipenser fulvescens". IUCN Red List of Threatened Species. 2022: e.T223A58134229. doi:10.2305/IUCN.UK.2022-1.RLTS.T223A58134229.en. Retrieved 3 October 2022.
  4. ^ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 5 April 2022.
  5. ^ Froese, R.; Pauly, D. (2017). "Acipenseridae". FishBase version (02/2017). Archived from the original on 14 May 2017. Retrieved 18 May 2017.
  6. ^ Van Der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (11 November 2014). "Family-group names of Recent fishes". Zootaxa. 3882 (1): 1–230. doi:10.11646/zootaxa.3882.1.1. PMID 25543675. S2CID 31014657.
  7. ^ "Sturgeons". New York State Department of Conservation. Archived from the original on 29 August 2016. Retrieved 21 August 2016.
  8. ^ "Record lake sturgeon caught in Wisconsin". 16 April 2012. Archived from the original on 23 April 2016. Retrieved 21 August 2016.