Wuqiangxi Reservoir is located in the Wuqiangxi National Wetland Park in Hunan Province. The Wuqiangxi fish are rich in amino acids, especially the high content of asparagus amino acids, glutamic acid, glycine and alanine, which are reflected in the meat. The four amino acids accounted for the total amino acid content, which was 39.1% for squid, 41.2% for cockroach, and 41.0% for black carp. Therefore, Wuqiangxi fish has a more delicious taste than other similar fishes, and is rich in nutrients and excellent in taste.

Surrounded by Qingshan Mountain in Fuling County, the vegetation structure is complete, the shape is natural, and the environment is quiet and beautiful. It is a rare and favorable condition for pollution-free fisheries. Liling County is a subtropical mountain with monsoon humid climate, moderate sunshine, short summer and winter, short spring and autumn, four distinct seasons, annual average temperature of 16.6 °C, average temperature change between 15.8-17.8 °C, annual sunshine of 1497 hours, frost-free period of 272.9. Day, greater than or equal to 10 ° C, annual activity accumulated temperature 5315 ° C, sustainable 300 days, that is, fish can feed for up to 10 months, greater than or equal to 15 ° C of the day, respectively, May 21 and 11 On the 29th of the month, the number of days lasted was 190 days. The suitable growth temperature of freshwater main fish is 15-30 °C. Because of the growth period of various water bodies suitable for fish in Fuling County for more than 6 months, Fuling is warm and humid with an average relative humidity of 80% and abundant rainfall. The annual average rainfall is 1456.6mm. Wuqiangxi Reservoir is located in Wuqiangxi National Wetland Park in Hunan Province. Wuqiangxi National Wetland Park is a wetland-forest complex ecosystem consisting of rivers, artificial lakes, marshes and lakes surrounded by tropical and subtropical regions. The surface of the Wuqiangxi Reservoir and its surrounding growth and decline zone, the muddy water and its river bank, the inflow stream, the lower reaches of the Wuqiang River and the Yanwutan Reservoir. Wetland Park is about 160 kilometers long from east to west and 60 kilometers wide from north to south. The planned total area is 20613.9 hectares, including wetland area of ​​19789.3 hectares. It is the wetland park with the largest wetland area in 13 national wetland parks in Hunan Province. It is a key area of ​​terrestrial biodiversity with international significance and is one of the 200 internationally significant ecological zones identified by the World Wide Fund for Nature. The water system in the region is developed and the water resources are abundant. Ten hydropower stations such as Wuqiangxi, Fengtan, Gaotan and Yanwutan are collected within a hundred miles, with a total installed capacity of 2,240,800 kilowatts. Since the Wuqiangxi Dam has locked in the second water, the graceful drowning and drowning waters turn into the mountains. The two hundred miles of the canyon became the water country after the Dongting Lake, from the dam area, one horse Pinghu, blue waves, thousands of islands. The construction of Wuqiangxi Hydropower Station has formed a vast surface in the territory of Fuling County, forming a unique microclimate environment in the reservoir area. The unique water quality and climate of the reservoir area make the Wuqiangxi fish meat tender, delicious and unique, nutritious, especially There is no muddy smell common to ordinary fish, and its protein, umami amino acid and minerals are high. The selenium content is particularly rich, and it meets the standard requirements of “selenium-rich” food. It is a green and pollution-free food. People's favor. There are above-scale warehouse forks and 502 reservoir bays in Wuqiangxi Reservoir Area. These waters have smooth water flow and good water quality. There is no industrial pollution in the reservoir area, no mining pollution, and the mountains are beautiful. The forest coverage rate in the territory is over 71%, there is no pollution within 20-45 km around the water area, the ecological environment is good, the lake water is clear, the transparency is more than 5 meters, the suspended matter is less, the heavy metal and toxic substances are almost zero, and the water quality of the reservoir is determined to reach the country. The secondary drinking water standard meets the requirements of the “Water Quality of Freshwater Aquaculture for Non-polluted Foods” and is very suitable for the production of pollution-free aquatic products. Through the investigation of aquatic resources in Wuqiangxi Reservoir, there are 9-17 species of phytoplankton, the density of phytoplankton is 9883/L, and there are 47 species of zooplankton. The average total density of zooplankton is 133.48/L. At the same time, Xiangxi is a rare natural high-selenium area in China. The selenium content in the rock layer is 5-7mg/kg, which makes the selenium content in the water more abundant than other areas. The unique micro-climate environment in the reservoir area - the reverse flow of the bottom cover water, always maintains the freshness of the water quality, and is very suitable for the breeding of the five strong brook fish. The quality characteristics of Wuqiangxi fish 1. The characteristics of Wuqiangxi fresh fish: Wuqiangxi cockroach red carp body is slender, the individual is large, the side is flat, the eyes are large and round, the back is dark black, the abdomen is white and there is Luminous; Wuqiangxi carp head large body fat, the head of the fish head is dark black, the color is bright and the body shape is slightly longer, the meat is white and tender, the muscles are tight and elastic, resistant to boiling, and the meat is rich in flavor; the Wuqiangxi squid is slightly darker in color, body fluid More, slim, shuttle-shaped, fresh taste, slightly sweet, soup color is milky white, no muddy smell. 2, quality characteristics: (1) meat tender, delicious and unique, nutritious, and no ordinary fish often have muddy taste, Wuqiangxi fish rich in amino acids, especially the natural flavor of the asparagus amino acid, glutamic acid The content of glycine and alanine was higher. After testing, the four amino acids accounted for the total amino acid content, 39.1% for carp, 41.2% for cockroach, and 41.0% for black carp. Therefore, Wuqiangxi fish has a more delicious taste than other similar fishes, and is rich in nutrients and excellent in taste. (See Table 1) Table 1 Wuqiangxi fish umami amino acid content table No. Item Item Qingyu squid cockroach red 鲌 鲌 Wuqiangxi reservoir around the carp 1 aspartic acid (g / 100g) 1.841.521.601.482 glutamic acid ( g/100g) 2.782.302.402.173 glycine (g/100g) 1.060.790.870.614 alanine (g/100g) 1.040.870.900.77 (b) high protein, nutrient rich. After testing, Wuqiangxi fish is rich in animal protein, including 18.0% of carp, 17.8% of cockroach, and 19.8% of carp. It is rich in trace elements such as selenium and zinc, among which the selenium content of black carp is 0.18mg/ Kg, zinc content of 7.4 mg / kg, squid selenium content of 0.36 mg / kg, zinc content of 9.4 mg / kg, sputum red sputum selenium content of 0.34 mg / kg, zinc content of 9.2mg / kg; Rich in unsaturated fatty acids docosapentaenoic acid (commonly known as melatonin EPA) and docosahexaenoic acid (commonly known as brain gold DHA). (See Table 2) Table 2 Wuqiangxi fish characteristics nutrient composition table No. Item Qingyu carp cockroach red 鲌 鲌 Wuqiangxi reservoir around the fish 1 protein (%) 19.818.017.816.32 selenium (mg / kg) 0.180.360.340. 163DHA(%)0.100.290.17——4EPA(%)0.020.280.10——3. The characteristics of dried fish in Wuqiangxi are characterized by uniform size and long body shape; scales and fins are intact, no wrinkles, body surface Clean with fish belly; uniform color, luster, color is golden yellow or silvery white; no salt cream, firm meat, rich fish flavor, uniform dryness and humidity.

The technical requirements of the quality of the five strong brook fish, the source of squid (Mylopharyngodon piceus Richardson); Culter albarmus; Aquis (Aristchthys mobilis Richardson). Second, the environmental conditions water depth ≥ 15 meters, water body transparency ≥ 5 meters, PH value 7.5 to 7.8, dissolved oxygen ≥ 5mg / L. Third, farming technology 1. Breeding method: natural breeding growth and artificial proliferation and release in the waters within the producing area. 2. (1) Seed quality: The released seed should meet the relevant national regulations. (2) Stocking time: 2 to 3 months and 11 to 12 months per year. (3) stocking specifications carp carp rear weight ≥ 250g ≥ 50g 3. Feeding bait. No bait is placed in the area of ​​production, and natural bait in natural water is taken. 4. Growth protection. From April to June each year, the fishing season is closed for natural waters. All fishing operations are prohibited during the ban on fishing. It is strictly forbidden to fish fishing, fish, fish and dense nets and other fishing activities that seriously damage fishery resources and protect the ecological environment of fishery. 5. Environmental and safety requirements. The prevention and control of stocking environmental epidemics and epidemics must comply with relevant state regulations and must not pollute the environment. IV. Fishing Time: The fishing operation is carried out except during the no-fishing period. Starting specifications: squid ≥ 2 kg / tail, herring ≥ 2 kg / tail, cockroach red 鲌 ≥ 0.75 kg / tail. V. Quality characteristics 1. Sensory features: cockroach red cockroach: the fish body is slender, side flat, the back is dark black, the abdomen is silvery white and shiny, the meat is tender and delicious; squid: the head is big body fat, the meat is white and tender; the squid: the fish body is dark, showing Shuttle type, fresh, slightly sweet, no muddy smell. 2. 3. Safety and other quality technical requirements: Product safety indicators and other quality technical requirements must comply with relevant national regulations.

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Producers within the Wuqiangxi fish producing area may apply to the Quality and Technical Supervision Bureau of Fuling County, Hunan Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Hunan Provincial Bureau of Quality and Technical Supervision and submitted to the General Administration of Quality Supervision, Inspection and Quarantine for approval. announcement.