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Lake sturgeon

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Lake sturgeon
Temporal range: Pleistocene - Recent[1][2]
A lake sturgeon
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)

The lake sturgeon (Acipenser fulvescens), also called rock sturgeon,[4] is a North American freshwater fish, a species of sturgeon. Like other sturgeons, this species is a bottom feeder and has semi-cartilage bones, a regular shape, and skin having bony scales on the sides and back.

The lake sturgeon uses its long snout to move the dirt on the floor of rivers and lakes to eat. Four organs (barbels) are near its mouth to help the sturgeon find ground-based prey. Lake sturgeons can grow to a large size for freshwater fish, getting up to 7.25 ft (2.2 m) long and 240 lb (108 kg).[5]

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References

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  1. "Fossilworks: Acipenser fulvescens". Archived from the original on 2023-04-11. Retrieved 2023-11-01.
  2. "Fossilworks: Acipenser". Archived from the original on 2023-01-28. Retrieved 2023-11-01.
  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. "Sturgeons". New York State Department of Conservation. Archived from the original on 29 August 2016. Retrieved 21 August 2016.
  5. "Record lake sturgeon caught in Wisconsin". 16 April 2012. Archived from the original on 23 April 2016. Retrieved 21 August 2016.