Dwarf sturgeon

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Dwarf Sturgeon
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acipenseriformes
Family: Acipenseridae
Genus: Pseudoscaphirhynchus
Species: P. hermanni
Binomial name
Pseudoscaphirhynchus hermanni
(Kessler 1877)
  • Scaphirhynchus hermanni Kessler 1877
  • Pseudoscaphirhynchus rossikowi Nikolskii 1900

The dwarf sturgeon, little shovelnose sturgeon, or small Amu-dar shovelnose sturgeon (Pseudoscaphirhynchus hermanni) is a species of fish in the Acipenseridae family. It is found in Tajikistan, Turkmenistan, and Uzbekistan.


The Pseudoscaphirhynchus hermanni population is recorded to be a rare species. There are few recordings of this species being caught, but there are accusations that fishermen are unknowingly catching them. The population trend of this species is decreasing. The Pseudoscaphirhynchus hermanni is being negatively affected due to dams, poaching, water extraction, irrigation, high levels of water pollution, mineral fertilizers, pesticides for cotton agriculture, drainage waste, and high levels of pollution. More survey work on this species is needed to determine the status of their population. Overall this species is recorded to be a critically endangered species.[3]


The Pseudoscaphirhynchus hermanni has a diet of midge larvae.[4]


The Pseudoscaphirhynchus hermanni is known to be found in the areas of Asia, Afghanistan, Turkmenistan, Uzbekistan, Amu Darya river, and the Syr Darya river.[5]


The Pseudoscaphirhynchus hermanni has been recorded reaching a maximum length of 27.5 centimeters or 10.82 inches. The maximum reported weight of this species is 50.5 grams or 0.11 pounds. The oldest reported age of this species is six years old. This species is considered to be potamodromous. This species is also recorded to be sensitive to chemicals in the water.[6]


The Pseudoscaphirhynchus hermanni is recorded to live in freshwater or slightly salty environments within a demersal depth range. This species lives in a temperate climate.[6][7]

Common names[edit]

The common names of the Pseudoscaphirhynchus hermanni in various languages include the following:

  • Dwarf Sturgeon : English
  • Little Shovelnose Sturgeon : English
  • Little Amu-Darya Shovelnose : English
  • Small Amu-dar Shovelnose Sturgeon : English
  • Lopatonos hermannův : Czech (česky)
  • Nibylopstons amu-daryjski : Polish (polski)
  • Pikkulapiosampi : Finnish (suomen kieli)
  • Small Amu-Dar Shovelnose Sturgeon : English
  • Амударьинский малый лопатонос : Russian (русский язык)
  • Лжелопатонос амударьинский малый : Russian (русский язык)
  • 短尾拟铲鲟 : Mandarin Chinese
  • 短尾擬鏟鱘 : Mandarin Chinese[3][8]


The taxonomic classification of the Pseudoscaphirhynchus hermanni is as follows:

  • Kingdom : Animalia
  • Phylum : Chordata
  • Subphylum : Vertebrata
  • Superclass : Osteichthyes
  • Class : Actinopterygii
  • Subclass : Chondrostei
  • Order : Acipenseriformes
  • Suborder : Acipenseroidei
  • Family : Acipenseridae
  • Subfamily : Scaphirhynchinae
  • Genus : Pseudoscaphirhynchus
  • Species : Pseudoscaphirhynchus hermanni [3][5][9]


  1. ^ Froese, R.; Pauly, D. (2017). "Acipenseridae". FishBase version (02/2017). Retrieved 18 May 2017. 
  2. ^ "Acipenseridae" (PDF). Deeplyfish- fishes of the world. Retrieved 18 May 2017. 
  3. ^ a b c "Pseudoscaphirhynchus hermanni". International Union for Conservation of Nature and Natural Resources. Retrieved 19 July 2013. 
  4. ^ "Pseudoscaphirhynchus hermanni (Petit Nez-Pelle de Lamoucou Daria)". Zip Code Zoo. Retrieved 18 July 2013. 
  5. ^ a b "Dwarf Sturgeon". Pond Life. Retrieved 18 July 2013. 
  6. ^ a b "Pseudoscaphirhynchus hermanni (Kessler, 1877) Little Amu-Darya shovelnose". Fish Base. Retrieved 18 July 2013. 
  7. ^ "Pseudoscaphirhynchus Hermanni". Search Fish. Retrieved 18 July 2013. 
  8. ^ "Dwarf sturgeon". The Website of Everything. Retrieved 18 July 2013. 
  9. ^ "Pseudoscaphirhynchus hermanni (Kessler, 1877)". ITIS Standard Report Page. Retrieved 18 July 2013. 


External links[edit]