The common sturgeon is the sturgeon, which is smaller than the Chinese sturgeon, while the sturgeon is much larger than the Chinese sturgeon, but the difference in appearance lies in that the sturgeon's nose is like a lightning rod and its mouth is much larger than its body width, while the sturgeon's nose, like a shell, does not exceed its body width;

1. Sturgeon is one of the oldest fishes in the world, and there are 25 to 26 species of sturgeon. Sturgeon belongs to Chordata, Vertebrate, Skeletonema, Actinidia, Acipenseridae and Acipenser.

2. There are 4 genera and 24 species of ACIPENSER in the world, including 2 species of Herpetus, 7 species of ACIPENSER/KLOC-0, 2 species of ACIPENSER and 3 species of ACIPENSER. There are 3 genera and 8 species of ACIPENSER in China, including 0 species of ACIPENSER/KLOC-0, 6 species of ACIPENSER and 1 species of ACIPENSER/.

3. American paddlefish are all economic fish. The paddlefish of Chinese sturgeon in the Yangtze River basin is listed as a first-class protected animal in China. The following are the main classifications of paddlefish.

Acipenser sinensis:

Acipenser sinensis (scientific name: ACIPENSER sinensis) has an average body length of about 40 cm, with a maximum length of 130 cm and a maximum weight of 600 kg. The body is spindle-shaped, the tip of the head is long, and there are four whiskers in front of the mouth. The mouth is located on the ventral side, which is flexible and can be stretched into a tube. The body is covered with five lines of large and hard bone scales, one line on the back and two lines on the body side and the ventral side.

Sturgeon is a rare ancient fish left over from Mesozoic 150 million years ago. It is between cartilage and hard bone, and the degree of ossification of bones generally declines. The central axis is an ossified elastic notochord without a vertebral body, and most of the cartilaginous shells along the skull do not ossify.

The caudal fin is crooked, the lateral fin has a broad base, and the dorsal fin is opposite to the gluteal fin. The ventral fin is located in front of the dorsal fin, with spiny scales at the base of the fin and caudal fin, spiral valves in the intestine, anus and drainage holes near the base of the ventral fin, and the opening of the fallopian tube is far away from the ovary.

The life cycle of ACIPENSER sinensis is long, and the longest life span can reach 40 years. It is a first-class protected wild animal in China, and it is also a living fossil, known as the "giant panda in the water". It has high scientific research, medicinal and ornamental value. China, Japan, Korea, Lao People's Democratic Republic and Korea.

Sturgeon:

Sturgeon is one of the few living fossils living in water in the world, and it is a kind of fish with the highest nutritional value. In China, there has long been a saying that "the dragon incarnates as an Epiphany of Sturgeon". Sturgeon eggs can be used as caviar.