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Chinese name: heliopita, English name: Ochetobius elongatus Kner, commonly known as: 刁子, wheat straw diao, Chang Diao, diao rod, class name: teleost fish, order name: cyprinid, family name: carp family, genus name: heliophore.
Heliosquaptas belong to the order Cypriniformes, Cyprinidae, Leuciscinae, and Ochetobius. Historically, it is widely distributed in the Xijiang, Dongjiang, Beijiang and Pearl River Delta regions of the Pearl River system. Due to its reproductive migration habits, it lays drifting eggs, and the breeding season needs to migrate to the specific spawning grounds of the river to be able to spawn smoothly. However, due to the development of water conservancy cascades and river water pollution, its resources are very small, and the population is almost endangered. According to the results of the early fish resource survey and monitoring of the Pearl River Fisheries Research Institute in recent years, only 1 to 2 batches of heel fry appear in the middle and lower reaches of the Pearl River every year, concentrated from late May to mid-July, and the resources account for only 0.18% of the total number of early replenishment groups of egg fry.
Morphological characteristics
The body is slender and approximately tubular. The head is small and tapered. The mouth is small, the end is located, the mouth crack is straight, and it is not necessary. The hypopharyngeal teeth are 3 rows long, broad and smooth, with hooked ends. The dorsal fin has no hard spines and its starting point is opposite the ventral fin. The caudal fin is deeply forked and both lobes are pointed at the ends. The dorsal area is bluish green, the abdomen is silvery white, there is a pale yellow-green longitudinal band above the middle of the body, the even and fins are orange, and the caudal fins are gray-black. It resembles an eel, but has a mild temperament.
Breeding cycle
There is a habit of migrating in the rivers and lakes. It enters the lake from July to September every year to fertilize, and returns to the river rapids to reproduce in the reproductive season. The reproductive season is 4-6 months, and the age of sexual maturity is 3-5 winter ages. Spawning sites need to have running water, and cannot reproduce in still water. Although the growth rate is not fast, the largest individual only reaches more than 10 kg, and the common one is mostly 0.5-1 kg.
food
Food is mostly animal components, such as aquatic insects, branches, small fish, shrimp and so on.
Acacia data map
The helios also have a "relative" named Anchovies. The snout of the anchovy is more pointed, is a large carnivorous and fierce economic fish, the longest can grow more than 50 kilograms, like to move in open waters such as rivers, lakes, reservoirs and so on. Acacia also has the habit of migrating in the rivers and lakes, and in the past there were certain resources in the production area, but in recent years it is also difficult to find.
Helio infographic
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