Acipenser schrenckii

Life-forms

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Chondrostei
Ordo: Acipenseriformes

Familia: Acipenseridae
Subfamilia: Acipenserinae
Genus: Acipenser
Species: Acipenser schrenckii
Name

Acipenser schrenckii Brandt, 1869
Synonyms

Acipenser baeri schrencki Brandt, 1869
Sturio schrenckii (Brandt, 1869)
Acipenser schrencki Brandt, 1869
Acipenser schrenki Brandt, 1869
Acipenser multiscutatus Tanaka, 1908

References

IUCN: Acipenser schrenckii (Critically Endangered)
Acipenser schrenckii in FishBase,
Froese, R. & Pauly, D. (eds.) 2022. FishBase. World Wide Web electronic publication, www.fishbase.org, version 08/2021.
Acipenser schrenckii (Brandt, 1869 – Taxon details on Integrated Taxonomic Information System (ITIS).
Acipenser multiscutatus Tanaka, 1908 – Taxon details on Integrated Taxonomic Information System (ITIS).

Vernacular names
čeština: Jeseter amurský
Deutsch: Amur-Stör
English: Amur sturgeon
suomi: Amurinsampi
italiano: Storione dell'Amur
polski: Jesiotr amurski
русский: Осётр амурский
Türkçe: Amur mersin baligi

The Japanese sturgeon, or Amur sturgeon (Acipenser schrenckii) is a species of fish in the family Acipenseridae found in the Amur River basin in China and Russia. Claims of its presence in the Sea of Japan need confirmation.[4] The species has 11–16 dorsal, 34–47 lateral, and 7–16 ventral scutes. Their dorsal fins have 38–53 rays and 20–35 anal fin rays. They also have greyish-brown backs and pale ventral sides. The species could reach up to 3 m (9.8 ft) in length, and weight over 190 kg.[5] The species is considered to be critically endangered.[1]
Habitat and ecology

The Japanese sturgeon is benthic. Their main food sources are aquatic insect larvae, bone fish and mollusks. One study suggests that the type of aquatic insect larvae eaten by juvenile Japanese sturgeon depends on the season, where Ephemeroptera larvae are eaten more frequently in Spring and Fall, and Chironomidae larvae are eaten more frequently in Summer.[6] The females mature at 9–10 years of age, and males at 7–8 years. They start to migrate in the autumn. They live for 65 years.[5]
References

Ruban, G.; Qiwei, W. (2010). "Acipenser schrenckii". IUCN Red List of Threatened Species. 2010: e.T228A13039546. doi:10.2305/IUCN.UK.2010-1.RLTS.T228A13039546.en. Retrieved 18 November 2021.
Froese, R.; Pauly, D. (2017). "Acipenseridae". FishBase version (02/2017). Retrieved 18 May 2017.
"Acipenseridae" (PDF). Deeplyfish- fishes of the world. Retrieved 18 May 2017.
Froese, Rainer; Pauly, Daniel (eds.) (2013). "Acipenser schrenckii" in FishBase. January 2013 version.
Description and distribution Archived 10 December 2013 at the Wayback Machine

Li, Lei; Zhang, Ying; Zhang, Jinfeng; Ma, Bo (4 May 2020). "Seasonal variation in diet of juvenile Amur sturgeon Acipenser schrenckii in the lower reaches of the Songhua River, Northeast China". Journal of Applied Ichthyology. 36 (3): 275–281. doi:10.1111/jai.14041. ISSN 0175-8659.