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].