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].

Core Insights - Dachen Island has transformed into a model for carbon trading and ecological sustainability, with significant advancements in carbon credit transactions and renewable energy utilization [1][2]. Group 1: Carbon Trading and Financial Innovations - In October 2023, a company purchased 2,223 tons of carbon credits from Dachen Island's mussel farming for 100,500 yuan, marking Zhejiang's first marine blue carbon transaction [1]. - The establishment of a "dual carbon" smart platform on Dachen Island integrates carbon monitoring, assessment, and trading, utilizing satellite remote sensing and IoT technologies for real-time carbon data [2]. - A local cooperative successfully used mussels as collateral for a 150,000 yuan loan, representing the first carbon credit financial loan transaction in Taizhou [2]. Group 2: Ecological and Economic Impact - Dachen Island's wind turbines generate over 60 million kilowatt-hours annually, reducing carbon emissions by 45,000 tons and providing surplus electricity for the island [1]. - The local government has implemented a closed-loop mechanism for carbon credit income distribution, ensuring over 40% of revenues are reinvested into ecological protection [2]. - The ongoing development of a standardized trading and distribution system aims to create a replicable model for ecological economic value transformation [2].

Core Insights - Dachen Island has transformed into a model for carbon trading, with the first marine blue carbon transaction in Zhejiang Province, where 2,223 tons of carbon credits from mussel farming were sold for 100,500 yuan [1][2] - The island's wind turbines generate over 60 million kilowatt-hours annually, reducing carbon emissions by 45,000 tons, and providing surplus electricity for the island [1] - A smart carbon management platform has been established on Dachen Island, integrating monitoring, assessment, and trading of carbon credits, utilizing advanced technologies like satellite remote sensing and IoT [2] Group 1 - Dachen Island's wind turbines produce over 60 million kilowatt-hours annually, reducing carbon emissions by 45,000 tons [1] - The first marine blue carbon transaction in Zhejiang Province involved the sale of 2,223 tons of carbon credits from mussel farming for 100,500 yuan [1] - The island's carbon trading market has been enhanced by a new system that replaces third-party certification with platform verification and public auction [1] Group 2 - A smart carbon management platform has been developed, featuring six modules for monitoring, assessment, and trading of carbon credits [2] - The platform employs technologies such as satellite remote sensing and IoT for real-time carbon data assessment [2] - A closed-loop mechanism for carbon credit income distribution has been established, with over 40% of revenues reinvested into ecological protection on the island [2]

Core Insights - The Mediterranean Sea is experiencing significant warming trends due to climate change, posing serious threats to marine ecosystems and the sustainability of fisheries [1][2]. Group 1: Temperature Changes - From 1982 to 2023, the average annual sea surface temperature in the Mediterranean increased by 0.041 degrees Celsius [1]. - Between 1991 and 2020, the surface temperature of Greek waters rose approximately 1.5 degrees Celsius, with the upper 200 meters of water warming by about 1.2 degrees Celsius and depths of 200 to 800 meters warming by around 0.9 degrees Celsius [1]. - Even at depths of 4000 meters, a temperature increase of about 0.2 degrees Celsius has been observed [1]. Group 2: Ecological Impacts - The warming of the Mediterranean is leading to multiple ecological issues, including changes in the structure and function of phytoplankton populations, which are foundational to the marine food chain [1]. - Invasive species such as lionfish are rapidly expanding due to increased sea temperatures, which is squeezing the living space of native species [1]. - Coral and sponge populations are experiencing mass mortality during heatwaves, leading to overall degradation of the ecosystem [1]. Group 3: Impact on Aquaculture - The rising sea temperatures are adversely affecting aquaculture, particularly species like mussels that have limited capacity to cope with extreme heat and cannot easily migrate, resulting in significant losses during heatwaves [1].