Aquatic Resource Biorefineries: Harnessing Aquatic Resources for Sustainable Production takes a pioneering approach by comprehensively addressing the multifaceted challenges within the field of aquatic biorefinery. The book bridges the gap between theoretical knowledge and practical expertise by promoting collaboration between academia and the fermentation industry, and shedding light on the pragmatic aspects of aquatic biorefineries, encompassing the latest research and industrial advancements. The book addresses contentious questions: (1) Optimal Resource Utilization: The central issue of the book is maximizing the utilization of aquatic resources, including crustacean waste, seaweed, wastewater, and algae, to produce valuable products. It provides practical strategies and insights for enhancing resource efficiency and minimizing waste in biorefinery processes. (2) Chitin and Chitosan Extraction Efficiency: The book explores and aims to improve the efficiency of chitin and chitosan extraction methods, addressing issues related to extraction yield, cost-effectiveness, and environmental impact. It presents solutions to optimize these processes for enhanced sustainability and commercial viability. (3) Biohydrogen Production and Viability: The book delves into the production and applications of bioplastics, particularly polyhydroxyalkanoates (PHA), from aquatic feedstocks, offering insights into the potential for replacing conventional plastics with sustainable alternatives and address issues of scalability and cost-effectiveness. (5) Fermentation Process Optimization: The book provides a comprehensive understanding of fermentation processes, including strain development and process design, for improved efficiency and product yields. (6) Environmental Impact Assessment: The book provides a basis for estimating and interpreting environmental indicators and, in turn, guiding sustainable decision-making in biorefinery operations. (7) Market Size and Commercialization Potential: The book explores the current and anticipated market size for products derived from aquatic resources, such as chitosan, carotenoids, and bioplastics. Aquatic Resource Biorefineries serves as a bridge between theory and practice, enabling readers to harness aquatic resources for sustainable biofuel production and stay updated with the ever-evolving field of biorefinery platforms.