Japanese sturgeon

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Japanese sturgeon
Japanese Sturgeon.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acipenseriformes
Family: Acipenseridae
Genus: Acipenser
Species: A. schrenckii
Binomial name
Acipenser schrenckii
J. F. Brandt, 1869
Synonyms
  • Acipenser baeri schrencki Brandt, 1869
  • Sturio schrenckii (Brandt, 1869)
  • Acipenser schrencki Brandt, 1869
  • Acipenser schrenki Brandt, 1869
  • Acipenser multiscutatus Tanaka, 1908

The Japanese sturgeon, or Amur sturgeon (Acipenser schrenckii) is a species of fish in the Acipenseridae family that can be found in the Amur River basin in China and Russia. Claims of its presence in the Sea of Japan need confirmation.[1] 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 in length, and weight over 190 kg.[2] The species is considered to be critically endangered.[3]

Habitat and ecology[edit]

The Japanese sturgeon is benthic. 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.[2]

References[edit]

  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2013). "Acipenser schrenckii" in FishBase. January 2013 version.
  2. ^ a b Description and distribution
  3. ^ IUCN Redlist.org

Further reading[edit]

  • Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino (1984). The fishes of the Japanese Archipelago. Vol. 1 (text). Tokai University Press, Tokyo, Japan. 437 p. (text), 370 pls.
  • Journal Coll. Sci. Imp.Univ.,Tokyo, "23", (7).
  • Global Biodiversity Information Facility http://data.gbif.org/species/13576254/. Viewed January 27, 2010.