Marine Ecosystem-Based Management provides a comprehensive exploration of ecosystem-based management (EBM), presenting it as an essential approach that integrates human activities with environmental processes. The book emphasizes the interconnected nature of these ecosystems, which cannot be managed effectively through traditional single-sector methods, and underscores how EBM addresses objectives from multiple sectors to balance ecosystem goods and services, including ecological, economic, and social needs for current and future generations. Authored by well-known champions of EBM, this volume integrates original research with a comprehensive review of decades of scientific work to systematically introduce the theory, modeling, applications, and policy behind this management approach. It conveys the what, why, and how of EBM in easily navigable chapters, making it accessible to broad academic and professional audiences spanning marine ecology, fisheries, oceanography, conservation biology, renewable energy, marine planning, coastal development, shipping, resource use management, and related professions operating in the ocean space. Marine Ecosystem-Based Management covers not only why EBM is necessary, but also how it can be applied. This book aims to contribute to the development and implementation of EBM, refute myths, and encourage action. It is an essential reference for graduate students, researchers, professors, resource managers, and decision-makers interested in all aspects of marine resource management.