This book covers the basics of fisheries and marine science. It includes an introduction to fisheries and marine science, aquatic ecosystems: marine, coastal, and freshwater, fish resources and aquatic organisms, and fish farming: systems, types, and technology., water quality and environment in fisheries, fishery product processing technology and fisheries marketing and economics.

Indonesia is the world’s largest archipelagic country, with a marine area of 5.8 million km² and a coastline of 99,093 km. This wealth of aquatic resources makes the fisheries and marine sector a strategic pillar of national development. Fisheries and marine science exists as a discipline that specifically studies all aspects related to aquatic ecosystems, aquatic biological resources, and their sustainable management and utilization.

The development of fisheries and marine science is inseparable from human needs for food, clothing, and energy sources from aquatic ecosystems. Since ancient times, humans have utilized the richness of marine and freshwater resources for their livelihoods. However, with increasing pressure from exploitation and global environmental change, the management of fisheries and marine resources requires a comprehensive and interdisciplinary scientific approach.