Silvia Martínez-Llorens is a Full Professor in the Department of Animal Science at the Universitat Politècnica de València. Her research focuses on substituting fish meal and fish oil with sustainable alternatives, including vegetable ingredients, animal by-products, algae, and biofuel-derived co-products such as yeasts and bacterial proteins. She combines her expertise in fish nutrition and diet optimization with experience in managing new species and innovative aquaculture systems. She began her research career at the Universitat Politècnica de València under a national FPU research grant in 2001 and has since progressed through the academic ranks, becoming Head of Department in 2020. Silvia has extensive experience working with both marine and freshwater species. Her research aims to integrate nutrition and sustainable system optimization to achieve “Zero Waste Production”. Her work encompasses digestive physiology, sensory quality of aquaculture organisms, changes in intestinal microbiota and transcriptome, bacterial evolution in production systems, and the performance of biofilters. This comprehensive approach supports the development of efficient and environmentally friendly aquaculture practices aligned with modern sustainability goals.