This book written by leading scientists from 12 countries, brings together in one volume a wealth of latest methods and information appropriate for pelagic ecology studies. These proven quantitative techniques will be useful to advanced researchers interested in understanding the structure and functioning of the pelagic ecosystem as well as in specialized studies such as monitoring the environment, response and recovery of environment to pertubations, impacts of pollution, and understanding the origin, progression and evolution of benign and harmful algal blooms.