The living habits and nutritional value of the red-finned tiger

The red-finned erythropterus (Cultrichthys erythropterus) belongs to the order Cypriniformes, Cyprinidae, subfamily Cultrichthys, and genus Cultrichthys. Commonly known as: short-tailed trevally, yellow palm skin, yellow-tailed trevally, red-tailed trevally, badao, small white fish. English name: Redfin culter.

The body is long and flat on the sides, the back of the head is straight, the back of the head is raised, the tail stalk is short, and its length is shorter than or equal to its height. The abdomen has obvious ventral ribs from the base of the pectoral fins to the anus. The mouth is small and located upward; the mandible is protruding and upwardly tilted, and the cleft in the mouth is almost perpendicular to the longitudinal axis of the body. The eyes are large and the scales are small; the dorsal fin is short and has strong and smooth spines. The front end of the lateral line is slightly bent downward, and the rear end extends upward to the middle of the caudal peduncle. The back of the body is greyish-brown, the sides and abdomen are silvery white, and the trailing edges of the scales on the sides have black pigment spots; the dorsal fin is grayish white, and the lower leaves of the pelvic fin, anal fin and caudal fin are all orange, especially the anal fin is the darkest. During the reproductive period, pearl stars appear on the head and pectoral fin rays of male fish and disappear after the reproductive period.

The red-finned murrelet likes to inhabit lakes with lush aquatic plants, and can also live in the slow flow of rivers. Juvenile fish often gather in groups to forage along the coast; adult fish often swim in groups on the surface and overwinter in deep water. 2 Winter-aged fish can generally reach sexual maturity for the first time. The smallest individual is only 11 centimeters and weighs about 17.6 grams. The spawning period is from May to July. The spawning ground is usually in a place with dense aquatic plants. After the eggs are laid, they adhere to the aquatic plants. The red-finned turtle is a ferocious carnivorous fish. Young fish mainly feed on cladocerans, copepods and aquatic insects. Adult fish generally feed on small fish, and also eat a small amount of shrimps, insects and zooplankton.

It is produced in the middle and lower reaches of main tributaries and affiliated still water bodies of Heilongjiang, Liaohe, Yellow River, Huaihe, Yangtze River, Pearl River, Qiantang River, Minjiang, Taiwan Island, Hainan Island and other water systems. Found abroad in Vietnam, North Korea and Russia.

The red-finned catfish is a small economic fish. The largest individual can reach 30 centimeters, and common individuals are mostly 20 centimeters long and weigh about 100 grams. It is widely distributed and has a large number. It is one of the main catches in individual areas. The red fin raw meat is white, tender and delicious. The whole fish can be used for medicinal purposes. It is sweet, warm and diuretic in nature and has the effect of eliminating edema. It is used to treat weight loss, edema and postpartum cramps, and has certain curative effects.

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