The John Martin Award, established in 2005, recognizes a paper in aquatic sciences that is judged to have had a high impact on subsequent research in the field. This award is given to at most one paper per year. Unlike the Lindeman Award, which recognizes very recent papers (within two years) by young investigators, the Martin Award is for papers at least 10 years old, but no more than 30 years old. It must be published in English and can be from any area of aquatic sciences. The spirit of the award is such that papers leading to fundamental shifts in research focus or interpretation of a large body of previous observations will be favored.