Marine life comprises of the plants, animals and other organisms that inhabit the seas, oceans or estuaries around the world. The marine ecosystem is very diverse and includes over 230,000 species and it is estimated that more than a million are yet to be discovered. The study of marine life is very important because marine organisms are the chief source of oxygen and also responsible for maintaining and shaping coastlines across the world. The study of this field branches out into marine conservation, marine biology, oceanography and hydrology. This book aims to equip students and experts with the modern evaluations and methodologies to achieve a multidisciplinary approach to the study of marine life. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in the field of marine life and their ecology, biology and conservation. It is a vital tool for all researching and studying this field.