Search results
Results from the WOW.Com Content Network
The shovelnose sturgeon (Scaphirhynchus platorynchus) [5] is the smallest species of freshwater sturgeon native to North America. It is often called hackleback , sand sturgeon , or switchtail . Switchtail refers to the long filament found on the upper lobe of the caudal fin (often broken off as adults).
The Syr Darya sturgeon (Pseudoscaphirhynchus fedtschenkoi), or Syr Darya shovelnose sturgeon, [1] is a species of fish in the family Acipenseridae. It is found in Kazakhstan, Tajikistan and Uzbekistan, where it is endemic to the Syr Darya River and, before its drainage, the Aral Sea .
Pseudoscaphirhynchus kaufmanni (Kessler, 1877) (Amu Darya sturgeon) Historically, the two species in the Amu Darya River were known to hybridize . [ 11 ] Unusually, P. fedtschenkoi occurs (or occurred) in three morphs that can be separated by the length of their snout and tail filament, and P. kaufmanni occurs in two morphs that can be ...
Conservation efforts at the grass roots level are also instrumental in helping to preserve sturgeon populations, such as Sturgeon For Tomorrow [62] which was founded in 1977, consists of volunteers and a sturgeon guarding program to monitor known spawning sites. The organization has grown exponentially over the years and has become "the largest ...
The dwarf sturgeon, little shovelnose sturgeon, or small Amu-Darya shovelnose sturgeon (Pseudoscaphirhynchus hermanni) is a species of fish in the family Acipenseridae. It is found in Turkmenistan , Uzbekistan and probably in Tajikistan .
Scaphirhynchus is a genus of sturgeons native to North America. All species in this genus are considered to be threatened with extinction or worse. [2] [3] [4] As of 2023, the pallid sturgeon (S. albus) [3] and the Alabama sturgeon (S. suttkusi) [4] are critically endangered according to the International Union for Conservation of Nature.
A study published in 2020 reported a successful hybridization between a Russian sturgeon (Acipenser gueldenstaedtii) and an American paddlefish (Polyodon spathula), indicating that the two species can breed with one another despite their lineages having been separated for hundreds of millions of years.
Shovelnose sturgeon This page was last edited on 3 January 2014, at 05:32 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...