'Most researchers in biological oceanography will find things of value in this well-produced book, and some of the chapters provide for a wider readership an excellent introduction to this critical area of environmental biology.' Nature 'This excellent book is effectively a series of mini-reviews covering the complete gamut of molecular techniques which have recently become available to the marine biologist or oceanographer. ... The book is beautifully presented and all the contributions are of the highest quality; the editor has done a fine job of maintaining consistency without suffocating the authors' individual styles.' Journal of Experimental Marine Biology and Ecology, 231 (1998)