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Pseudoscaphirhynchus hermanni (Kessler, 1877)

Dwarf sturgeon
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Image of Pseudoscaphirhynchus hermanni (Dwarf sturgeon)
Pseudoscaphirhynchus hermanni
Female picture by Salnikov, V.B.


Afghanistan country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Mouths of Amu Darya upriver to Termez on the Afghan border with Uzbekistan (Ref. 39701).
National Checklist:
Country Information: https://www.cia.gov/library/publications/the-world-factbook/geos/af.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Coad, B.W., 1981
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Pseudoscaphirhynchus: Greek, pseudes = false + Greek, skaphe = boat + Greek, rhyngchos = snout (Ref. 45335).

Issue
Species of the genus Pseudoscaphirhynchus belong to the subfamily Acipenserinae, and not Scaphirhynchinae as it was previously considered (V. Birstein, pers. comm. 03/05 ).

Environment: milieu / climate zone / depth range / distribution range Ecologia

; Água doce; estuarina demersal; potamódromo (Ref. 51243).   Temperate

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Former USSR and Asia: Endemic to the basin of Amu Dariya and Sir Dariya rivers. Registered in the 1984 USSR Red Book; 1985 Turkmen SSR Red Data Book; 1996 IUCN Red List (Ref. 35930).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 27.5 cm TL macho/indeterminado; (Ref. 35930); peso máx. publicado: 50.50 g (Ref. 35930); idade máx. registrada: 6 anos (Ref. 35930)

Biologia     Glossário (p.ex. epibenthic)

A rare and endangered species; smallest sturgeon; sensitive to chemicals in the water Ref. 35930).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)

Status na Lista Vermelha da UICN (Ref. 130435)

  Criticamente em perigo (CR) (A2c); Date assessed: 14 September 2019

CITES (Ref. 128078)


Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias: sem interesse
FAO(pescarias: perfil da espécie; publication : search) | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequências de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
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Spawnings
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BRUVS - Videos
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Tipo de natação
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Visual pigment(s)
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Diseases / Parasites
Toxicities (LC50s)
Genetics
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Electrophoreses
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Aquaculture systems
Perfis para aquacultura
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Ciguatera cases
Stamps, coins, misc.
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Nomes comuns
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References
Referências

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Relatórios especiais

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Fontes da internet

Aquatic Commons | BHL | Cloffa | Websites from users | Checar Observador de Peixes (FishWatcher) | CISTI | Catalog of Fishes(Gênero, Espécies) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoma, nucleotídeo) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Árvore da vida | Wikipedia(Ir para, procura) | World Records Freshwater Fishing | Registro zoológico

Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00148 - 0.00739), b=3.16 (2.98 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.2   ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (tmax=6).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).