"The International Tropical Summer Course (ITroSCo) is an annual program organized by the Faculty of Fisheries and Marine Science, Diponegoro University (UNDIP), Indonesia. Now in its seventh year, ITroSCo has evolved into a vibrant academic platform that brings together students, researchers, and professionals from around the world to explore tropical marine and fisheries science in an immersive and interdisciplinary setting. This year, ITroSCo 2025 adopts the theme “Sustainable Aquaculture and Coastal Ecosystem.” This theme addresses one of the most pressing challenges of our time, ensuring food security and economic development through aquaculture while preserving the resilience of coastal ecosystems. The program will be held in online sessions from 22 September to 3 October 2025 and on-site activities from 10 October to 12 October 2025 at UNDIP’s Teluk Awur Campus in Jepara, Central Java, Indonesia. Join us at ITroSCo 2025 to expand your knowledge, connect with a global network, and contribute to building a more sustainable and resilient future for our oceans and coastal communities."