Marine environments encompass an impressive diversity of ecosystem and habitats. The book covers Biodiversity and Conservation of marine bioresources, marine actinobacteria, sea grass resources, marine faunal diversity, marine sponges, coral reef fished, Crustaceans in Gulf of Mannar, Conservation of Synganathid biodiversity etc. The book also contains valuable information on the role of marine biodiversity and its effect on fish production, biodiversity of brackish water areas and applications of informatics in marine biodiversity conservation and the book also covers sea snakes distribution, habitat, feeding strategies and threats and coastal birds of India.