The main differences between Egyptian catfish and wild catfish are as follows:

1. Different growth and distribution areas

Egyptian catfish is native to the Nile River system in Africa. Trial breeding was introduced in my country in 1981. In 1982, Guangdong's freshwater breeding breeding farm succeeded in self-cultivation and breeding. It has been promoted in most areas of South China and Central China. It is one of the high-yielding freshwater aquaculture species in Guangdong and Guangxi.

Wild catfish are found throughout the world.

2. Different classifications

The categories of Egyptian catfish are: teleosts, order Siuriformes, catidae, genus Catfish;

categories of wild catfish For: Actinopterygii, Catidae, Catfish genus.

3. Different morphological characteristics

1. Morphological characteristics of Egyptian catfish:

Black body color, 8 whiskers, and a flat head. The body is cylindrical, with a flatter head than local catfish, a longer body, a slightly lower mouth, well-developed tentacles, and smaller eyes. 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. Morphological characteristics of wild catfish:

The body is elongated, the head is flat, and the tail is flat on the sides. The mouth is in the lower position, the mouth cleft is small, and the end only reaches below the edge of the eye (the end reaches the back edge of the eye in largemouth catfish). Protruding jaw. The interdentals are thin and villi-shaped. The jaw teeth and pear teeth are arranged in a curved belt shape. The pear bone tooth belt is continuous and the middle part of the posterior edge is slightly concave. The eyes are small and covered with membrane. Adult fish have 2 pairs of barbels, the upper barbels can reach as deep as the end of the pectoral fin, and the lower barbels are shorter.

There are 3 pairs of chin barbels in the juvenile stage, and one pair of chin barbels begins to disappear when the body length reaches about 60 mm. Catfish are mucusy and have no scales. The dorsal fin is small, has no spines, and has 4-6 fins. No adipose fin. The anal fin is very long and its rear end is connected to the tail fin. The body color of catfish is usually dark brown or gray-black, with slight dark cloud-like patches.

Baidu Encyclopedia - Egyptian Bearded Catfish

Baidu Encyclopedia - Earth Catfish