Since the advent of the electron microscope, there has been a dramatic increase in our understanding of the microalgae. With contributions from leading researchers from around the world, this book presents a completely up-to-date survey of the prymnesiophyte algae. Ubiquitous in their distribution--particularly as members of the marine phytoplankton--the prymnesiophyte algae has long been recognized for production of fish toxins and for its importance as geological markers via the preservation of their mineralized remains. But the Prymnesiophyta have achieved considerable notoriety in recent years not only because they have they been responsible for disastrous ichthyotoxic blooms in Scandinavian coastal waters, but because it now appears that their production of volatile sulphur compounds and calcifying mineralization may be adversely affecting our climate. This volume is the first book to bring together the scattered literature on this group and covers all the main aspects of Prymnesiophyte biology--including taxonomy, structure, ecology, biochemistry, origins, and evolution. Students and marine biologists studying algae, plankton, and ecology, as well as botanical microbiologists will want to read this important volume.