Animalia > Chordata > Actinopterygii > Acipenseriformes > Acipenseridae > Acipenser > Acipenser fulvescens

Acipenser fulvescens (Lake Sturgeon)

Synonyms: Accipenser fulvescens
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Wikipedia Abstract

The lake sturgeon (Acipenser fulvescens), also called rock sturgeon, is a North American temperate freshwater fish, one of about 25 species of sturgeon. Like other sturgeons, this species is an evolutionarily ancient bottom feeder with a partly cartilaginous skeleton, an overall streamlined shape and skin bearing rows of bony plates on its sides and back, resembling an armored torpedo. The fish uses its elongated, spadelike snout to stir up the substrate and sediments on the beds of rivers and lakes while feeding. The lake sturgeon has four purely sensory organs that dangle near its mouth. These organs, called barbels, help the sturgeon to locate bottom-dwelling prey. Lake sturgeons can grow to a relatively large size, topping 7.25 ft (2.2 m) long and weighing over 240 lb (108 kg).
View Wikipedia Record: Acipenser fulvescens


Adult Length [2]  8.987 feet (274 cm)
Brood Dispersal [2]  In the open
Brood Egg Substrate [2]  Litho-pelagophils
Brood Guarder [2]  No
Gestation [3]  6 days
Litter Size [2]  350,000
Maximum Longevity [2]  152 years
Migration [1]  Potamodromous
Water Biome [1]  Lakes and Ponds, Rivers and Streams
Adult Weight [3]  154.324 lbs (70.00 kg)
Diet [1]  Omnivore, Planktivore
Female Maturity [2]  26 years
Male Maturity [3]  8 years

Protected Areas

Prey / Diet

Erpobdella octoculata[4]
Pungitius pungitius (Ninespine stickleback)[4]


Ichthyomyzon unicuspis (Silver lamprey)[4]
Petromyzon marinus (Eel sucker)[4]


Institutions (Zoos, etc.)

Range Map


America, North - Inland waters; Canada; Great Lakes; Mississippi; Missouri; Nearctic; Nelson-Saskatchewan; North America: St. Lawrence-Great Lakes, Hudson Bay, and Mississippi River basins. International trade restricted (<b>CITES</b> II, since 1.7.75; <b>CMS</b> Appendix II).; St. Lawrence; Tennessee; USA (contiguous states);

External References



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
5Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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