Core Insights - The article highlights the booming industry of rainbow trout farming in the Longyangxia Reservoir, located in the upper reaches of the Yellow River, with over 50 tons of fish being supplied daily to domestic and international markets [1][8]. Group 1: Production and Technology - The rainbow trout caught at the Longyangxia farming base are large, averaging 8 to 10 pounds each [3]. - A self-developed vacuum fish pump is used for harvesting, which minimizes stress on the fish and preserves the quality of the meat [5][8]. - The unique environmental conditions, including an average altitude of over 2,600 meters and a stable water temperature of around 12 degrees Celsius, create an ideal habitat for cold-water fish like rainbow trout [13]. Group 2: Market and Economic Impact - The rainbow trout from Longyangxia has captured significant market share, accounting for over 50% of the domestic rainbow trout market, supported by local government policies [21]. - The establishment of deep processing production lines allows for customized products, ranging from whole fish to fillets, catering to diverse consumer preferences [19]. - The industry has stimulated related sectors such as logistics, packaging, specialty dining, and rural tourism, indirectly creating over 2,000 jobs in the local area [21].

Core Insights - The article highlights the development of the cold-water fish industry in Qinghai, specifically focusing on the salmon farming at Longyangxia Reservoir, which is the largest cold-water fish production base in China [1][3]. Industry Overview - Longyangxia Reservoir is located at an average altitude of over 2600 meters, with water sourced from glaciers and snowmelt, covering an area of 383 square kilometers and maintaining an average water temperature of around 12 degrees Celsius, creating an ideal environment for salmon farming [3]. - The salmon farm at Longyangxia is the only one in China to receive both ASC and BAP 4-star international certifications, indicating high standards in aquaculture practices [3]. Production and Export Data - The annual production of salmon at Longyangxia exceeds 15,000 tons, with exports to countries such as Singapore, Thailand, and Spain [3]. - The salmon produced in Longyangxia accounts for 60% of the domestic market share, with an export value projected to reach 350 million yuan in 2024, representing 98% of the domestic salmon export volume [4]. - In the first five months of this year, Qinghai Province exported 2,344.7 tons of frozen trout and related products, marking a 130% increase compared to the previous year [4].