Shallow Seas (Collins New Naturalist Library, Book 131)Shallow Seas are the most biologically rich and productive areas of the world ocean. This latest New Naturalist volume provides a natural history of this environment and its biological communities. The margins of the continents, especially broad in the North Atlantic region, are drowned by shallow seas, creating a sea floor environment which is part of the wider and deepening benthic realm the ecological region at the lowest level of a body of water