Core Viewpoint - The Wenchang Fengjiawan Modern Fishery Industrial Park in Hainan has developed a new model for coastal fishery transformation and upgrading, integrating multi-layer factory aquaculture, centralized deep-sea water extraction, ecological retirement, and seed industry integration [1][2]. Group 1: Industrial Model and Innovations - The park is the largest factory-style "vertical farming" facility in the country, covering an area of 6,408 acres, promoting the transition from traditional fishing to large-scale multi-layer aquaculture [1][2]. - It has achieved the first nationwide implementation of centralized deep-sea water extraction and tail water treatment, ensuring high-quality seawater for aquaculture while minimizing ecological damage [1][2]. - The tail water purification process includes four stages: pre-treatment by farming entities, ecological interception ditches, purification by aquatic organisms, and solidified microbial enhancement, achieving "zero wastewater" discharge [1][2]. Group 2: Policy and Financial Support - The park has introduced the first national operational guidelines for the transfer of state-owned agricultural land and ownership registration for facilities on such land, enhancing land resource allocation and asset revitalization efficiency [2]. - Financial cooperation through "government-bank-guarantee" models, specialized insurance for aquaculture breeding, and incentives for park entry help farmers mitigate risks and reduce burdens [2]. Group 3: Research and Development - The establishment of the Hainan (Wenchang) Fishery Innovation Research Center aims to bridge the gap between technological breakthroughs and industrial applications, involving collaboration among academicians, research institutions, enterprises, cooperatives, and farmers [2]. - Since 2020, the park has launched 40 projects with a total investment of 2.632 billion yuan, increasing land utilization for aquaculture facilities from 50% to over 85% and achieving a survival rate of over 90% for fish and shrimp seedlings [2]. Group 4: Future Development Plans - The park plans to enhance infrastructure and industrial chains, leveraging technology to achieve green and sustainable development in the fishery industry, aiming to create a complete chain of "technology research and development + results transformation + industrial application" [3].

Core Viewpoint - The successful indoor recirculating water incubation of grouper fish in Zhuhai marks a significant advancement in agricultural research and technology, showcasing the potential for innovative aquaculture practices in the region [11][21]. Group 1: Incubation Process - The first batch of fish eggs, weighing 1.2 pounds and approximately 1 million eggs, was successfully incubated, with expectations for a good harvest [2][6]. - The incubation process involves several stages, including hatching the eggs into fish fry, then nurturing them into juvenile fish, requiring meticulous care akin to raising infants [7][8]. - The first incubation attempt on April 4 resulted in 240,000 fry being sold by May 18, indicating a positive market response and prompting a second incubation [15][16]. Group 2: Technological Innovation - The indoor recirculating water incubation system is a key innovation in aquaculture, often referred to as the "chip" of the aquaculture industry, which enhances the success rate of fish hatching [23][24]. - The system includes components such as breeding pools, ecological processors, protein separators, temperature control systems, water quality monitoring systems, and automatic feeding systems, ensuring stable water quality throughout the incubation process [42][44]. - The technology has received three national utility model patents, highlighting its uniqueness and potential impact on the industry [44]. Group 3: Challenges and Expertise - Incubating grouper fish is particularly challenging, with critical stages including the opening of the mouth within three days of hatching and the metamorphosis process, which requires careful management to prevent larger fry from consuming smaller ones [25][26][28]. - The team includes a Hong Kong aquaculture expert, Zhang Zhiming, whose expertise is crucial for overcoming the difficulties associated with grouper incubation [26][34]. Group 4: Future Prospects - The company plans to expand its operations with the construction of additional facilities and breeding pools, which will enhance the capacity to grow juvenile grouper fish into larger sizes, thereby increasing economic benefits [57][58]. - The successful incubation of grouper fish is part of a broader strategy to develop sustainable aquaculture practices and contribute to rural revitalization efforts [60][61].

Group 1 - Shanzhou District in Shangluo has established the first 4.0 version of fish-vegetable symbiosis demonstration base in the province, achieving a total fishery output value of 567 million yuan, with cold-water fish production reaching 5,091 tons, ranking first in the province [1] - The 4.0 smart aquaculture system combines recirculating aquaculture with soilless hydroponics, achieving ecological balance among animals, plants, and microorganisms, allowing for fish farming without water changes and vegetable cultivation without fertilizers [2][3] - The city has introduced various ecological aquaculture models and advanced technologies, including smart oxygenation and water quality monitoring, to enhance the cold-water fish industry [3] Group 2 - Key projects in Shangluo are driving the development of cold-water fish farming, facility fisheries, and integrated rice-fish farming, with a focus on transforming the industry from small-scale to standardized and branded operations [5] - The Shanyang Cold Water Fish Industry Park is designed for efficient water resource use and is expected to generate multiple income streams for local farmers, including rental income and profit sharing [5][6] - Various interest linkage mechanisms have been established, such as "village collective + leading enterprises + farmers," which have helped over 480 households increase their income through land and capital investment [8]

Group 1: Aquaculture Innovations - The introduction of South American white shrimp in saline-alkali land in Inner Mongolia marks a significant breakthrough in aquaculture, utilizing a factory-based recirculating water system to create a suitable environment for the shrimp [4][6][10] - The first yield test in 2025 showed an average size of 25 shrimp per pound, with a production of approximately 300 pounds per cycle per pond, indicating high survival rates and uniform sizes [4][8] - The successful cultivation of shrimp demonstrates the effective utilization of saline-alkali water resources and the potential for replicating this model in other regions [10][22] Group 2: Marine Fish Adaptation - The introduction of over 20,000 sea bass fry into saline-alkali water in Tongliao City represents a bold innovation aimed at enhancing local economic development through aquaculture [11][14] - Collaborative efforts with research institutions have led to the selection of salt-tolerant species and the establishment of a comprehensive monitoring system for water quality and fish growth [12][14] - The project aims to utilize over 80% of the water surface area, significantly improving resource efficiency in the region [14] Group 3: Integrated Ecological Agriculture - The launch of an ecological agriculture project combining grape cultivation with crayfish farming in Wuhai City aims to enhance soil health and resource utilization [17][19] - The project utilizes crayfish to aerate the soil and convert waste into organic fertilizer, creating a zero-waste ecosystem [19][21] - Economic benefits include increased income for local farmers, with projected earnings of over 8,000 yuan per person annually and a 2.3-fold increase in overall economic efficiency [21][22]