Core Insights - The joint marine ecological survey conducted by the Third Institute of Oceanography, Ministry of Natural Resources of China, and Indonesian partners focused on the North Sulawesi region, expanding previous research areas [1] - The survey team discovered new shallow hydrothermal vents, which support diverse coral reefs and seagrass beds under extreme conditions, providing a natural laboratory for studying marine ecosystems under climate change [1] - A marine ecological observation network has been established in North Sulawesi, utilizing existing observation stations and new findings to collect valuable continuous data on biodiversity and ecological connectivity [1] Summary by Categories Research Objectives - The joint survey aims to investigate the evolution of typical marine ecosystems under extreme environmental conditions due to climate change [1] Methodology - The survey collected over 500 samples, including corals, plankton, environmental DNA, water, sediments, and microplastics, using various technologies such as temperature and salinity recorders, drone aerial photography, and diving surveys [1] Findings - The discovery of new hydrothermal vents and the presence of high biodiversity in coral reefs and seagrass beds highlight the resilience of these ecosystems in the face of climate change [1]