China launches offshore lab for coastal ecology research

China on Friday commenced operations of a large-scale offshore platform for controlled in-situ experiments related to coastal ecosystems, marking a new phase in systematic, intelligent, and open coastal ecology research in the country. Developed by the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS), the facility is deployed in the Yellow Sea, off the coast of Rongcheng, Shandong Province, eastern China. IOCAS stated it is the largest open-access facility in China for in-situ experiments in coastal areas. With a total area of 2,000 square metres and an experimental sea zone of 30,000 square metres, the platform is designed to support diverse ecological studies under actual sea conditions. ‘The new platform is essentially a laboratory moved to the sea,’ said Sun Xiaoxia, an IOCAS researcher and head of the platform’s development team. Sun explained that in this lab, researchers can precisely regulate key factors such as temperature, nutrients, and dissolved oxygen under real seawater conditions. The lab enables continuous observation throughout entire cycles and bridges the technical gap between natural ocean observation and controlled laboratory experiments. The platform comprises modules for automated monitoring, water regulation, mesocosm ecosystems, and logistical support. It allows precise single-factor or multi-factor regulation of temperature, nutrients, dissolved oxygen, and other variables, enabling researchers to reproduce various scenarios such as ocean warming, acidification, and eutrophication in a real marine environment. This capability is crucial for understanding how coastal ecosystems respond to gradual climate trends and extreme events, Sun said. China’s coastal waters, which are hubs for various marine economic activities and ports, are also areas prone to disasters and ecological risks. These waters, in particular, are under increasing pressure from climate change, land-based runoff, and human activities. ‘With conventional research vessels, scientists can only collect data at specific times and locations, and land-based laboratory experiments cannot simulate the complex interactions between various species and processes in the real ocean,’ Sun explained. The new laboratory is located in a typical mariculture area in northern China, providing ideal conditions for studying both natural and cultivated ecosystems. Researchers can conduct scenario-based experiments on carrying capacity, ecological resilience, marine heatwaves, and hypoxia to identify risk thresholds and optimise aquaculture management. Beyond supporting the aquaculture industry, the facility can also provide technical support for disaster prevention, precision restoration, and coastal ecosystem health management, Sun said. The platform is designed to support open international collaboration and will be accessible to global research institutions, facilitating joint efforts to address pressing marine environmental challenges.