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Introduction of Golden thread fish
作者:Administrators    发布于:2018-08-22 09:58:18    文字:【】【】【
     Golden thread fish is one of the species of Nemipteridae (Perciformes) of the genus Nemipterus. The body is oval, slightly elongated, flat, and 35 cm long, with small scales. Distribution in the Western Pacific region, including Japan, South Korea, China, the Philippines, Indonesia, Vietnam, Thailand, Australia and other sea areas, China is produced in the South China Sea, the East China Sea and the southern Yellow Sea, the South China Sea production is more.

     Golden thread fish  is a rare indigenous fish species in China. It is also a representative fish species in karst areas of southern China. Originally recorded in Yunnan, it has been expanded to distribute in Guangxi and Guizhou. Since the Ming Dynasty, it has been praised as the first of the four famous fishes in Yunnan. In Xu Xiake's Travel Notes, it is also a representative fish species in karst areas of southern China. "Yunnan Materia Medica", "Yunnan Sea Fishery Heng Zhi" and "Newly usurped Yunnan Tong Zhi" are all recorded, and more Qing Dynasty poet Li Fei's "Golden thread fish poem" said it.
Delicious food for "or should be served by senior officials." Dianchi, Fuxian Lake, Yangzong sea and Luliang Yangze are famous producing areas of the golden line fish. At present, the above-mentioned areas are extinct or nearly extinct, since 1986 in Dianchi Lake can no longer be found in Dianchi Lake; Yangzonghai was famous for 70% production of Yangzong goldfish can only occasionally see 1 to 2; Luliangzhong Yanze in the past 30 to 40 tons of goldfish, due to land-based waters, goldfish has been extinct; Fuxian Lake remains The golden thread fish has sold a high price of 2000 yuan per kilogram. It can be seen that the goldthread fish in Yunnan is in an endangered state. In 1989, the goldfish in Dianchi Lake was listed as the second-class protected animal in China, and in 1998, it was included in the book "Red Book on Endangered Animals in China. Fish".

     The body of the goldthread is flattened, spindle-shaped, 8-19 cm long, with a slightly flat or concave forehead and two pairs of whiskers. The dorsal part of the body is gray-black, the abdomen is gray-white, the fins are black, thin scales, scales are only distributed on the side of the body, dorsal-abdomen scaleless or less scales, scales are yellow, glossy, lateral line is golden yellow, so the name of goldthread fish. Happy to inhabit the water quality of fresh stony waters, due to visual degradation, developed sense of smell, afraid of sunlight, so many nights out foraging, feeding mainly on plants, staple plant seeds, often in and out of the lake coast groundwater outflow caves. In the 4~5 months of the year, the male and female fish swarm into the cave and lay eggs and hatch on the gravel. The best breeding temperature is 18~22 C, and the survival temperature is 5~26 C.

Short tailed golden thread fish

The length of the body is about 6 times that of the body. The upper part of the caudal fin grows into filaments and is short in length. The head is reddish brown with a yellow stripe from the nostrils to the posterior part of the eye and from the tip of the mouth to the lower part of the eye. There is a pale yellow band on the side of the body and an obvious broad yellow band on the abdomen. The dorsal fin is light red with yellow edge and a yellow line and a light blue line on the fin membrane. Caudal fins pink crimson, inner margin dark red, terminal filament short yellow.

Golden thread fish

The body is elliptic and slightly longer, and the upper part of the caudal fin grows into filaments. All light red, with two longitudinal bands on the side, one light yellow, from the snout through the cheek, along the lateral line below to the caudal fin base, the other yellow, wide before and after narrow, from the pectoral fin base to the caudal fin base. The dorsal fin is rosy red, the upper part of the first fin spine to the second fin spine is bright red, and the margin behind the second fin spine is yellow. The ventral fin is gray, with a yellow spot near the fins base, and axillary scales white. The anal fin is white, and a broad yellow band is found in the middle of the fin membrane. Caudal fin rose red, upper leaf fins and filaments extended yellow, inner margin red.。

Yellow golden thread fish

The body is long oval and the upper part of the caudal fin is slightly longer than the lower leaves. The body is light red with two broad yellow longitudinal bands in the middle of the body, one from the posterior upper margin of the gill cap to the caudal fin base, and the other from the gill cap through the pectoral fin to the caudal fin base. The dorsal fin is rosy red, with a broad, dark yellow margin and a blue line in the middle. Ventral fin gray white, axillary and axillary scales yellow. The anal fin is gray, the caudal fin is red, and there is a large yellow spot near the tip of the upper leaf.

Rose golden thread fish

The body is nearly long elliptic. Fins are taller, fins are equal to fins, and margin of fin fin is slightly concave. All roses are red with indistinct yellow longitudinal bands on the sides. At the beginning of the side line, there is a light red spot with 9 Brown saddle markings on the back. Dorsal fin rose red, orange yellow on the edge of sixth fin spine. Ventral fins and axillary scales reddish. Anal fin gray white. The caudal fin is rosy and the lower leaves are lighter.
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