The rare minnow (Gobiocypris rarus) belongs to the order Cypriniformes, family Cyprinidae, ("fish" on the left, "dan" on the right) subfamily, and the genus Gobiocypris rarus. Commonly known as: Jinbainiang, cuttlefish. English name: Rare gudgeon.
Endangerment level: Endangered.
The body is small, slender, slightly flattened on the sides, and has a round abdomen. The head is medium large. Kiss blunt. Mouth small, terminal, curved. Thin lips, no beard. The eyes are near the tip of the snout. The lateral line is incomplete, the rear end is intermittent, and the longest can exceed the base of the pelvic fin. Longitudinal scales 31-34. The dorsal fin is short, without spines, and starts slightly near the base of the tail. The back of the body is gray, the belly is white, there is a light yellow vertical stripe on the side of the body, and there is an obvious black spot at the base of the tail fin.
Inhabits half-stone, half-silt substrate and small water bodies with many water plants, such as rice fields, ditches, ponds, small rivers and other micro-flowing water environments. Can live in relatively turbid water bodies. Like group activities. Feeds on small aquatic invertebrates. The breeding season is from March to November and can be reproduced year round under artificial insemination conditions. Under suitable water temperature and sufficient feed conditions, they can reach sexual maturity and lay eggs about 4 months after hatching. Generally, each female fish can lay about 300 eggs at a time.
This species is endemic to my country and is only found in the Liusha River, a tributary of the Dadu River in Hanyuan County, Sichuan Province, and some small rivers near Chengdu. There are not many in the wild. Due to its narrow distribution range, unstable environmental conditions pose a certain threat to the normal life of this species. Currently, this species is used as a new experimental fish for artificial breeding and research.
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