Dabry's sturgeon
| Dabry's sturgeon | |
|---|---|
 | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Acipenseriformes |
| Family: | Acipenseridae |
| Genus: | Acipenser |
| Species: | A. dabryanus
|
| Binomial name | |
| Acipenser dabryanus Duméril, 1869
| |
| Synonyms[3][4] | |
| |
Dabry's sturgeon (Acipenser dabryanus), also known as the Yangtze sturgeon, Chiangjiang sturgeon and river sturgeon, is a species of fish in the
Appearance
This sturgeon has been known to reach 2.5 m (8.2 ft) in length, but it is usually much smaller.[8] Its body is blue-gray above and yellowish white on the belly, with five rows of scutes. The head is triangular and the snout is long with the mouth located on the underside. There are two pairs of barbels.[9]
Behavior
The fish lives in slow-moving river waters over substrates of sand and mud. It feeds on aquatic plants, invertebrates, and small fish. This species is potamodromous, taking part in a migration, but never leaving fresh water.[9] It spawns in the upper Yangtze, mainly during March and April, and sometimes around November and December. Males spawn each year, but most females do not. The female produces 57,000 to 102,000 eggs.[9]
Conservation status
This was once a common fish in the Yangtze system.
The fish has been bred in captivity since the 1970s. Thousands of individuals have been released into the Yangtze basin, but are apparently not breeding. Nevertheless, this restocking may be the only effort preventing the extinction of the species.[1]
See also
- List of endangered and protected species of China
- Chinese sturgeon (Acipenser sinensis)
- Chinese paddlefish (Psephurus gladius)
References
- ^ . Retrieved 21 July 2021.
- ^ "Appendices | CITES". cites.org. Geneva, Switzerland: CITES Secretariat. Archived from the original on 5 December 2017.
- ^ 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.
- ^ a b Zhuang, P., et al. (1997). Biology and life history of Dabry's sturgeon, Acipenser dabryanus, in the Yangtze River. Environmental Biology of Fishes 48(1-4), 257-64.
- ^ PMID 29721289.
- ^ ISBN 9789578596771.
- ^ Froese, R. and D. Pauly. (Eds.) Acipenser dabryanus. FishBase. 2011.
- ^ a b c d Gao, X., et al. (2009). Threatened fishes of the world: Acipenser dabryanus Duméril, 1869. Environmental Biology of Fishes 85(2), 117-18.
