Sturgeons are large, freshwater or anadromous fishes of north temperate regions. Although unrelated to sharks, they possess many shark-like structures and features such as a heterocercal tail, a spiral valve intestine, a ventral, protrusible mouth, and a mostly cartilaginous skeleton. A row of four barbels extending across most of the width of the snout is situated midway between the mouth and tip of the snout. The head is covered by bony plates and the body has five rows of bony, keeled scutes with small bony scales between the scute rows. Sturgeons are modern relicts of fishes that were dominant during Paleozoic times and are represented today by about two dozen species in four genera. Sturgeons are excellent food fish and their eggs are commercially important as caviar. Sturgeons lay great numbers of eggs and spawn in the spring, migrating upstream to deposit over hard substrates.

Depth range based on 65 specimens in 15 taxa.
Water temperature and chemistry ranges based on 13 samples.

Environmental ranges
  Depth range (m): 1.25 - 90.25
  Temperature range (°C): 7.020 - 17.205
  Nitrate (umol/L): 1.034 - 8.857
  Salinity (PPS): 32.397 - 35.134
  Oxygen (ml/l): 4.958 - 6.835
  Phosphate (umol/l): 0.314 - 0.765
  Silicate (umol/l): 1.861 - 4.888

Graphical representation

Depth range (m): 1.25 - 90.25

Temperature range (°C): 7.020 - 17.205

Nitrate (umol/L): 1.034 - 8.857

Salinity (PPS): 32.397 - 35.134

Oxygen (ml/l): 4.958 - 6.835

Phosphate (umol/l): 0.314 - 0.765

Silicate (umol/l): 1.861 - 4.888
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 2
Species With Barcodes: 1