The Egyptian pond louse, whose scientific name is the Egyptian catfish, has the following main differences from the pond louse:
1. Different appearance characteristics
The Egyptian catfish has a cylindrical body The shape is flatter than that of the pond louse, the body is more elongated, the mouth is slightly lower, the tentacles are developed, and the eyes are smaller. There are many bony particles protruding on the back of the head, arranged in a radial pattern, the edges of the fins are light red, there are black spots and gray-white cloud-like patches on the sides of the body, the chest and abdomen are white, and the mouth cleft is wide.
2. Different living habits
1. Egyptian catfish: Egyptian catfish is a bottom fish with a docile personality. It has strong environmental adaptability and the critical temperature of cold resistance is 7℃. It is resistant to hypoxia and can still survive when the dissolved oxygen level is as low as 0.128ppm. When the dissolved oxygen in the water is insufficient, it often swims to the surface to swallow air. Intra-species competition is fierce, and in fingerling ponds and adult fish ponds, the law of the jungle often eats the strong and kills each other.
2. Pond lice: They like to flock in groups and are gluttonous. They mainly eat animal food, such as insects, small fish, shrimps, shellfish, etc. They also like to eat blood (such as pig blood, slaughtered animals, etc.) The pig's blood flows into the pond, and the pond carp will grow very big), eat these feces, and meat and grow rapidly. It is a nocturnal animal and hides quietly in pits at the bottom of rivers or under tree roots during the day. Large species with large appetites, such as the Danube catfish, will attack small water birds or mice, as well as ferocious bottom fish. It is afraid of light and likes to live in rock crevices, deep pits, earth holes or stone caves at the base of tree roots near river banks, and in slow-flowing waters.
3. Different origins and distributions
1. Egyptian bearded catfish: native to the Nile River system in Africa.
2. Pond lice: distributed in the Yangtze River and various water bodies south of the Yangtze River, and are also important breeding targets in Guangdong, Fujian and other provinces.
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Baidu Encyclopedia-Egyptian Bearded Catfish