The increased UV radiation on Earth has far-reaching consequences. This book provides a comprehensive review of UV radiation effects in the marine environment. A team of respected contributors provide multidisciplinary coverage, discussing all aspects from a physical, chemical and biological perspective. The book begins by describing the attenuation of UV radiation in the atmosphere and sea water, outlining the photochemical reactions involved and highlighting the role that such chemistry can play in influencing the biogeochemical cycling of various elements. Coverage then goes on to detail the consequences of such radiation on organisms ranging from viruses and bacteria through phytoplankton and zooplankton to fish and mammals. Strategies adopted to mitigate these harmful repercussions are also discussed.