Acipenser dabryanus belongs to the order Acipenser, family Acipenser, and genus Acipenser. Commonly known as: Sha Lazi, Xiao Lazi, sturgeon, and catfish. English name: River sturgeon, Dabry’s sturgeon.
Endangerment level: Vulnerable. China's national first-level protected wild animals.
IUCN (1996) CR CITES (1997) Appendix II.
The body length is fusiform. The head is wedge-shaped and rough on the back. The snout is short and tapered at the front. The mouth is inferior, with transverse cleft, and the lips have small papillae. There are 2 pairs of whiskers on the snout and abdomen. Eyes are small (relatively larger than Chinese sturgeon). The nostrils and gills are both large. The opercular membrane is connected to the gill isthmus. The left and right gill openings are separated. The body is covered with 5 rows of bony plate-like hard scales, and the epidermis between the scales is rough. Tail crooked. The appearance is similar to the Chinese sturgeon, but the adult fish is shorter and lighter in weight. Gill rakers are triangular and thin, with 33-54 pieces. The back and sides of the body are bluish gray. The ventral surface is grayish white. Fins blue-grey with white edges.
The Dachshund's sturgeon is a freshwater resident fish. Often active in the middle and lower layers of rivers, it is more common from above Shashi in Hubei Province to the lower reaches of Jinsha River in the Yangtze River, and also enters large lakes. It especially likes to inhabit river bays or deep rivers with slow flow, rich in humus and benthic organisms, sandy bottom or pebble dams. Growth rate is faster. In the reproductive group, males reach sexual maturity at 4-7 years old and females at 5-8 years old. The general body length is 0.8-1.0 meters and the weight is 5-10 kilograms. The spawning season is from October to November, with a few extending to December. Sexually mature individuals go upstream and to the main river channels during the breeding season to lay eggs. The eggs are sinking and sticky. The eggs stick to the gravel bottom of the spawning ground and develop. The feeding habits are mainly benthic invertebrates, but also aquatic plants, algae and humus. Young fish feed on aquatic oligochaeta, dragonfly larvae, dipteran larvae, chironomid larvae and small fish; larger juvenile fish and adults feed on humus and benthic invertebrates. Feeding is generally stopped during the spawning period.
Distributed in the main tributaries of the Yangtze River and large lakes along the Yangtze River in China. It is a large economic fish produced in the upper reaches of the Yangtze River. Its natural output is not large, but it still occupies a certain position in the fishery of the production area. In the past two decades, the number has greatly decreased and it is in an endangered state. At present, it has received the attention of the provinces in the upper reaches of the Yangtze River and is effectively protected like the Chinese sturgeon.
animal tags：
you may also like
Luciobrama macrocephalus (Luciobrama macrocephalus) belongs to the order Cyprinidae, family Cyprinidae, subfamily Auropodinae, and genus Luciobrama. Common names: Fire pipe, pointed-headed catfish, horse-headed catfish, duck-billed catfish, duck-billed catfish, crane-billed catfish, long-bill...
Sichuan white soft-shell turtle (Onychostoma angustistomata) belongs to the order Cypriniformes, Cyprinidae, subfamily Onychostoma angustistomata, and the genus Onychostoma angustistomata. Commonly known as: small mouth white nails, sharp mouth white nails, wax brown. The...
Leuciscus waleckii belongs to the order Cypriniformes, family Cyprinidae, subfamily Leuciscus, and genus Leuciscus. Commonly known as: Huazi fish, slippery fish, white fish, sand bag. English name: Amur ide. The body is long, the sides are flat, the abdomen is round, ther...
Zacco platypus belongs to the order Cypriniformes, family Cyprinidae, and genus Zacco platypus. Commonly known as: peach blossom fish, double-tailed fish, red Chegong, red winged fish, white glutinous fish, fast fish, stone fish ("Compendium of Materia Medica"). English name: Pale chub....
Fish and molluscs living in the water will respond behaviorally to changes in the water environment. Therefore, it is used by environmental experts as a "natural monitor" to monitor water pollution.The pike has a very sensitive sense of smell and reacts very quickly to harmful substances a...
Chinese sturgeon (Acipenser sinensis) belongs to the order Acipenser, family Acipenseridae, and genus Acipenser. Commonly known as: catfish, sturgeon, lazi, sturgeon shark, tuna ("Erya"), tuna ("The Book of Songs"). English name: Chinese sturgeon, Green sturgeon. Endanger...
Crocodiles are semi-aquatic reptiles. They have a special respiratory system and need to effectively obtain oxygen in water and on land to maintain life activities. Here’s a closer look at how crocodiles breathe: Breathing underwater: Direct lung...
To successfully breed koi, you need to provide the right water quality, the right environment, and the right breeding period. Here’s a closer look at what’s needed for koi reproduction: Water quality: The water quality is clean and clear, with a moderate pH value, usuall...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
