DABRY\'S STURGEON (
Acipenser dabryanus) is a species of fish in the
Acipenseridae . Other common names include YANGTZE
STURGEON, CHIANGJIANG STURGEON, and RIVER STURGEON. It is endemic to
Yangtze River Basin in
China . It was a food fish of commercial
importance. Its populations declined drastically, and in the early
1980s, it was designated an endangered species and commercial harvest
was banned. It has been listed as a critically endangered species by
the IUCN since 1996.
This sturgeon has been known to reach 2.5 m in length, but it is
usually much smaller. 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 .
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. 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.
This was once a common fish in the Yangtze system. It was known from
the main river and some of its larger tributaries , as well as some
lakes attached to the system. By the late 20th century, it was
extirpated from the lower river and limited to the upper reaches in
Sichuan . The main causes of its drastic decline include overfishing ,
including the overharvesting of juveniles. The construction of dams ,
such as the Three Gorges
Dam , blocked the movement of the fish along
the river, restricting it to the upper reaches. It also caused habitat
fragmentation and degradation. Increased development and deforestation
on land near the river has increased pollution from wastewater and
The fish has been bred in captivity since the 1970s. Thousands of
individuals have been released into the river, but are apparently not
breeding. Nevertheless, this restocking may be the only effort
preventing the extinction of the species.
* List of endangered and protected species of
* ^ A B C D Qiwei, W. 2010.
Acipenser dabryanus. In: IUCN 2013.
IUCN Red List
IUCN Red List of Threatened Species. Version 2013.1. Downloaded on 15
* ^ Froese, R.; Pauly, D. (2017). "Acipenseridae".
(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
Acipenser dabryanus, in the Yangtze River.
Environmental Biology of Fishes 48(1-4), 257-64.
* ^ Froese, R. and D. Pauly. (Eds.)
Acipenser dabryanus. FishBase.
* ^ A B C D Gao, X., et al. (2009). Threatened fishes of the world:
Acipenser dabryanus Duméril, 1869. Environmental Biology of Fishes
Extant sturgeon and paddlefish species
* Kingdom Animalia
Siberian sturgeon (A. baerii baerii)
Baikal sturgeon (A. baerii baicalensis)
Shortnose sturgeon (A. brevirostrum)
Dabry's sturgeon (A. dabryanus)
Lake sturgeon (A. fulvescens)
Russian sturgeon (A. gueldenstaedtii)
Green sturgeon (A. medirostris)
Sakhalin sturgeon (A. mikadoi)
Japanese sturgeon (A. multiscutatus)
Adriatic sturgeon (A. naccarii)
Bastard sturgeon (A. nudiventris)
Gulf sturgeon (A. oxyrinchus desotoi)
Atlantic sturgeon (A. oxyrinchus oxyrinchus)
Persian sturgeon (A. persicus)
Sterlet (A. ruthenus)
Amur sturgeon (A. schrenckii)
Chinese sturgeon (A. sinensis)
Starry sturgeon (A. stellatus)
European sea sturgeon
European sea sturgeon (A. sturio)
White sturgeon (A. transmontanus)
* Kaluga (H. dauricus)
* Beluga (H. huso)
Syr Darya sturgeon
Syr Darya sturgeon (P. fedtschenkoi)
Dwarf sturgeon (P. hermanni)
Amu Darya sturgeon (P. kaufmanni)
Pallid sturgeon (S. albus)
Shovelnose sturgeon (S. platorynchus)
Alabama sturgeon (S. suttkusi)
American paddlefish (P. spathula)
Chinese paddlefish (P.