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红树林里“蟹”成金
21世纪经济报道· 2025-08-15 07:31
Core Viewpoint - The article highlights the innovative "mangrove-crab-shellfish-algae" coupling coexistence model in Zhanjiang, Guangdong, which revitalizes degraded wetlands and achieves both ecological restoration and economic benefits, with annual output value reaching over 10,000 yuan per mu [2][3]. Summary by Sections Ecological Restoration and Economic Development - Zhanjiang has implemented a "mangrove planting-aquaculture coupling coexistence" model to balance ecological protection and economic development, becoming a benchmark for ecological restoration empowered by technology [3]. - The area has the largest and most concentrated national mangrove nature reserve in China, but historical practices like pond farming and land reclamation severely impacted mangrove habitats [2][3]. Innovative Practices - The Zhanjiang Bay Laboratory's Mangrove Protection Research Center has developed a trial base for the "mangrove-crab" ecological coupling model, which includes planting various mangrove species and aquaculture of blue crabs and shellfish [3][5]. - The introduction of mangroves helps absorb aquaculture waste, improve water quality, and provide natural habitats for crabs, thus enhancing their survival rates [4][5]. Economic Benefits - The trial has shown promising results, with an estimated yield of 30-50 kg per mu annually, generating income of 9,000 to 15,000 yuan per mu [5][6]. - The center has also developed techniques for breeding high-value "yellow butter crabs," achieving a conversion rate of nearly 70%, marking a significant breakthrough in crab farming [6]. Broader Implications - The successful implementation of this model not only provides valuable experience for mangrove protection but also creates a sustainable economic model for local aquaculture, transforming traditional farming into a profitable venture [5][6]. - Currently, approximately 60% of Guangdong's mangrove area is included in natural protected areas, indicating a strong commitment to ecological conservation while promoting economic growth [6].
种树养蟹双丰收,绿水青山藏“金”方
Core Viewpoint - The article highlights the innovative "mangrove planting-aquaculture coupling coexistence" model pioneered by the Zhanjiang Bay Laboratory, which integrates ecological restoration with economic benefits, showcasing a successful case of balancing environmental protection and economic development in Guangdong [1][3]. Summary by Sections Ecological Background - The mangrove forests are recognized as "coastal guardians" and play a significant role in maintaining biodiversity, coastal protection, and carbon sequestration [1]. - Zhanjiang has the largest and most concentrated national mangrove nature reserve in China, but historical practices like large-scale pond farming and land reclamation have severely impacted mangrove habitats, leading to ecological degradation [1]. Innovative Practices - In April 2022, the Zhanjiang Bay Laboratory established the first mangrove protection research center in western Guangdong and initiated the "mangrove planting-aquaculture coupling coexistence" model, which has been recognized as a typical case for marine ecological protection and restoration by 2025 [1][3]. - The experimental base covers 8.5 acres, where various mangrove species are planted alongside aquaculture of mussels and blue crabs, aiming to create a sustainable ecosystem [2]. Economic Impact - The "mangrove-mussel-blue crab" circular aquaculture model enhances the survival rate of blue crabs, which traditionally faced challenges such as low survival rates below 30% due to environmental stressors [2][3]. - The model has shown promising economic returns, with an estimated annual yield of 40-60 kg per acre, generating revenue between 9,000 to 20,000 yuan per acre [3]. - The laboratory has successfully developed a technique for producing high-quality "yellow butter crabs," achieving a conversion rate of nearly 70%, marking a significant advancement in aquaculture practices [3]. Future Developments - The center is collaborating with local organizations to establish more experimental bases for high-value aquatic species, expanding the application of the mangrove aquaculture model across various locations [4]. - Currently, Guangdong's mangrove area is approximately 11,400 hectares, with about 60% designated as protected areas, indicating a strong commitment to ecological conservation while promoting economic benefits for local aquaculture [4].
深圳渔博会引全球渔业资源聚首湾区,多样交易促供需“速配”
Nan Fang Du Shi Bao· 2025-05-15 09:56
Core Viewpoint - The 2025 Shenzhen International Fisheries Expo, themed "Fishing Guangdong Towards the Future," showcases over 12,000 high-end seafood products, enhancing the culinary experience for residents in the Greater Bay Area [1][5][12]. Group 1: Event Overview - The expo runs from May 15 to May 17, 2025, at the Shenzhen Convention and Exhibition Center, featuring a variety of global seafood products [1][5]. - Notable exhibits include premium seafood from 20 countries and regions, such as Russian king crab and Argentine red shrimp, alongside local specialties like Maoming tilapia [5][12]. Group 2: Consumer Engagement - The event attracted large crowds, with long lines for tasting fresh seafood, including an 800-pound bluefin tuna that became a focal point for attendees [7][9]. - The expo provides a platform for consumers to experience fresh seafood through live cutting and tasting sessions, enhancing the demand for high-quality marine products [9][12]. Group 3: Business Opportunities - The expo serves as a comprehensive platform for trade, featuring high-end seafood auctions and specialized procurement meetings, facilitating efficient business matching between suppliers and buyers [14][15]. - Strategic cooperation agreements were signed to promote the construction and operation of the Shenzhen International Tuna Trading Center, aiming to expand the market for deep-sea fishery products in the Greater Bay Area [12][14]. Group 4: Technological Innovations - The expo highlights advancements in fishing technology, showcasing smart fishing navigation systems and automated aquaculture solutions, which enhance operational efficiency in the fishing industry [14][15]. - The integration of cutting-edge logistics systems aims to improve the preservation and distribution of seafood products, ensuring quality and freshness [14][15]. Group 5: Cultural Exchange - The event not only focuses on industry collaboration but also promotes cultural exchange, with various regional brands and products showcased, reflecting the diversity of fishing cultures across different areas [15].