It belongs to CYPRINIDAE, Fish Subsubfamily and Fish genus. [Edit this paragraph] Appearance and figure

The loach is small and slender, with a nearly cylindrical front end, a round abdomen and a flat back end. The ratio of height to body length is 1.7: 8.

head

The head of Misgurnus anguillicaudatus is sharp, the snout protrudes forward, the inclination angle is large, and the snout length is smaller than the back of the eye. Small mouth, inferior, horseshoe-shaped. The lips are soft, with fine wrinkles and small protrusions. The eyes are small, covered by membrane, and the upper vision is underdeveloped. Branchial fissure stops at the base of pectoral fin.

must

Misgurnus anguillicaudatus has five pairs of whiskers, including snout 1, maxilla 1, squab 1 and lower lip 2. The longest mouth must extend to or slightly beyond the back edge of the eye; But some are shorter, only as long as the gill cover. These five pairs of whiskers of Misgurnus anguillicaudatus are extremely sensitive to touch and taste.

scale

Misgurnus anguillicaudatus has no scales on its head, but the scales on its surface are extremely small and round, and are buried under the skin. Sideline scale 125- 150.

Roller body surface

The body surface of loach is rich in mucus. The back of the body and more than 2 /3 parts of the body side are grayish black with black spots, and the lower part of the body side is grayish white or yellowish. The body color of loach living in different environments is slightly different.

fin

The dorsal fin of Misgurnus anguillicaudatus has no hard spines, and there are 3 undivided fins and 8 branched fins, * * *1/fin. The dorsal fin is opposite to the ventral fin, but the starting point is before the ventral fin, which is about the midpoint between the posterior edge of the anterior gill cover and the base of the caudal fin. The pectoral fin is far from the ventral fin. The ventral fin is short, starting at the middle and back of the dorsal fin base, and the ventral fin is less than the gluteal fin. The caudal fin is round. The pectoral fin, ventral fin and gluteal fin are grayish white, while the caudal fin and dorsal fin have small black spots, and there are obvious black spots above the base of caudal fin. [Edit this paragraph] It is distributed in China, except the Qinghai-Tibet Plateau. Distributed in rivers, ditches, paddy fields, ponds, lakes, reservoirs and other natural fresh water areas all over the country, especially in the middle and lower reaches of the Yangtze River and the Pearl River Basin. It is a small freshwater economic fish with a large population. [Edit this paragraph] Misgurnus anguillicaudatus is a benthic fish, which is commonly found in shallow waters with deep sediments such as lakes, ponds, paddy fields and ditches. The domestic water temperature is 10-30℃, and the optimum water temperature is 25-27℃, so it should be warm water fish. When the water temperature rises to 30℃, the loach dives into the mud to spend the summer. In winter, when the water temperature drops below 5℃, drill into the mud for wintering at a depth of 20-30 cm. Strong adaptability to anoxic environment. In addition to gill breathing, skin breathing and intestinal breathing can also be performed. Vision is weak, but touch and taste are extremely sensitive. Omnivorous, young fish feed on animal bait, zooplankton, chironomid larvae, silkworms and so on. After growing up, the range of bait is expanded. Besides eating a variety of insects, filamentous algae, plant roots, stems, leaves and humus can also be eaten. Adult loach mainly feeds on plant food. Generally speaking, they eat at night. If the water temperature is below 10℃, don't eat it above 30℃.