What kind of animal is the loach and what category does the loach belong to?

Loach is a kind of fish, which belongs to the kingdom Animalia, Chordate, Vertebrate subphylum, Bony Fishes, Radial Fins, Cypriniformes, Cypriniformes, Loachidae, Loachidae, Loachidae, Loach Genus. However, it is different from other fish, regardless of appearance, body shape, and living habits, it is a special fish.

Loaches belong to the family of loaches. Loach (scientific name: Misgurnus anguillicaudatus) is a loach of the family Loachidae.

The body is elongated, cylindrical, and the caudal peduncle is flattened and thin. Small head. Snout tip.

Lower mouth, horseshoe-shaped. 5 pairs of whiskers (1 pair of snout whiskers, 2 pairs of maxillary whiskers, 2 pairs of mandibular whiskers). The eye is small, laterally superior, covered by epithelium, without infraocular spines.

Gill holes are small. The scales are very small and deeply embedded in the skin. The siding line is complete.

The pectoral fin is distantly from the pelvic fin, with unbranched fin bars 1 and branched fin bars 10. The pelvic fin does not reach the anal fin, with unbranched fin rays 1, branched fins 5-6. Anal fin with unbranched fin 2 and branched fin 5.

The caudal fin is rounded. The upper part of the body is grayish-brown, the lower part is white, and there are irregular black spots on the sides of the body. There are also spots on the dorsal and caudal fins.

There is a large black spot above the base of the caudal fin. The other fins are grayish-white.

In addition to individual differences, the number of eggs carried by female loach has a lot to do with its body length: about 2,000 eggs for a female loach with a body length of 8 cm, 7,000 eggs for a female loach with a body length of 10 cm, 13,000 eggs for a female loach with a body length of 12 cm, 15,000 eggs for a female loach with a body length of 15 cm, and 24,000 eggs for a female loach with a body length of 20 cm.

Loaches are fish. It has all the characteristics of a fish.

Taxonomy of loaches.

Subphylum Chordates.

Bony fishes, radial-fin subclass.

Cypriniformes, suborder Cypriniformes.

Loachidae. Subfamily Loach.

Loach genus. Loach.

Species distribution area:

China, Japan, North Korea, Russia and India in Asia.

Loaches are small demersal fish. It lives in a still or slow-moving water body at the bottom of the silt, has strong adaptability, and can live in an environment rich in humus. When the water is deprived of oxygen, intestinal respiration can be performed, and after the water has dried up, it can burrow into the mud.

Feed on all kinds of small animals. For batch spawning, the breeding period is mainly 5-6 months. The fertilized eggs adhere to the aquatic plants and hatch.

The largest individual can be up to 300 mm long, and the meat quality is excellent, which is one of the export aquatic products. Loaches prefer to inhabit the bottom of still water, and often haunt the surface layer of silt rich in plant debris at the bottom of lakes, ponds, ditches and paddy fields, and are highly adaptable to the environment. The living water temperature is 10 30, and the optimal water temperature is 25 27, so it should be a warm-water fish.

When the water temperature rises to 30, the loaches dive into the mud for the summer.

Loaches belong to the family Loachidae.

The body is small and elongated, only three to four inches. And it has a round body, a short body, small scales under the skin, a blue and black color, and is covered with its own mucus, so it is slippery and cannot be held. Loaches are widely distributed in China, Japan, Korea, Russia and India along the Asian coast.

It is distributed all over China. It is more distributed in the south and less common in the north.

Mode of reproduction

Loaches generally begin to reach sexual maturity at 2 years of age. The breeding season is from April to September, and the peak breeding season is from June to July. Usually, spawning begins at 19 years old and around 24 there is a large amount of spawning and strong reproductive activity.

Loaches are fish that spawn multiple times a year, often at night after rain and sometimes during the day. During spawning activities, loaches are bold and often come to the surface of the water to chase them. Loach eggs are sticky, and after the eggs are fertilized in the water, they stick to aquatic weeds or debris in the water to hatch, and the fertilized eggs that fall to the bottom of the water can also hatch into loaches.

In addition to individual differences, the number of eggs carried by female loach has a lot to do with its body length: about 2,000 eggs for a female loach with a body length of 8 cm, 7,000 eggs for a female loach with a body length of 10 cm, 13,000 eggs for a female loach with a body length of 12 cm, 15,000 eggs for a female loach with a body length of 15 cm, and 24,000 eggs for a female loach with a body length of 20 cm.

The eggs of loaches are round, beige, translucent, with a diameter of millimeters, reaching millimeters after absorption. When the water temperature is above 20, the incubation period is 2-4 days.

It is a loach family, and loach is a loach family. The body is elongated, cylindrical, and the caudal peduncle is flattened and thin. Small head. Snout tip. Lower mouth, horseshoe-shaped. 5 pairs of whiskers (1 pair of snout whiskers, 2 pairs of maxillary whiskers, 2 pairs of mandibular whiskers).

Loaches are bottom-dwelling fish that inhabit the bottom of various shallow and silty environmental waters such as rivers, lakes, ditches, paddy fields, ponds and marshes. Diurnal and nocturnal, it is adaptable and can live in an environment rich in humus. When there is a lack of oxygen in the water, it can jump to the surface of the water and swallow air for intestinal respiration.

Loaches move in the bottom mud or in the bottom silt of the water, and prefer to lie dormant and nocturnal, and their vision deteriorates in the dark environment for a long time. However, the tentacles and lateral lines are very sensitive and play a key role in avoiding enemies and foraging activities. In addition to respiring with gills, loaches can also perform intestinal respiration, so it has a strong tolerance for low dissolved oxygen.

In a water-scarce environment, loaches can survive for a long time as long as the soil remains moist.

The loach is very adaptable to the environment, so among the more than 100 species of fish in the loach family, only the loach has the largest number and the most extensive distribution.

Feeds on benthic organisms such as algae in the sludge and also feeds on zooplankton. When artificial feeding, insects, small crustaceans, earthworms, young plant stems and leaves, etc., can also be fed with soybean cake, bean dregs, rough bran, etc.