Originally published in 1983, An Ecosystem Approach to Aquatic Ecology is a unique, comprehensive analysis of a lake ecosystem. It summarizes and integrates results from the Hubbard Brook Ecosystem Study, one of the most extensive long-term studies of a watershed ever undertaken. The Hubbard Brook Ecosystem study produced two widely acclaimed earlier volumes - Biogeochemistry of a forested ecosystem and Pattern and Process in a Forested Ecosystem - about natural and disturbed terrestrial ecosystems in the Hubbard Brook Valley in the White Mountains of New Hampshire. This new volume integrates the ecology and biogeochemistry of terrestrial and aquatic ecosystems to describe the interactions of Mirror Lake with its watershed and airshed. This comprehensive work presents an ermous data base and reference listing. As a model study in limlogy, it is an essential text-reference for both the student and the practicing researcher.