This book investigates the critical role of heterotrophic microorganisms in marine ecosystems. John E. Hobbie, a distinguished researcher in microbial ecology, presents a comprehensive examination of heterotrophic activity in the sea. Drawing on extensive research and data from the field, the book details the metabolic processes, ecological significance, and quantitative aspects of microbial decomposition and nutrient cycling in oceanic environments. It aims to elucidate the fundamental contributions of these organisms to the overall health and functioning of marine life.

This text is recognized as a foundational work in marine microbial ecology, providing a rigorous scientific overview of heterotrophic processes. Its detailed approach and reliance on empirical data establish it as a valuable resource for researchers and advanced students in oceanography and microbiology. The book is noted for its thoroughness in covering the quantitative aspects of microbial metabolism in marine systems.