Introduction -- Chapter 1. The Biological Characteristics of Organism s Involved in Blue Biotechnologies -- 1.1. Fish -- 1.1.1. Tilapia -- 1.1.2. Trout -- 1.1.3. Atlantic salmon -- 1.1.4. Carp -- 1.2. Algae -- 1.2.1. Microalgae -- 1.2.2. Macroalgae -- 1.3. Other aquatic plants -- Chapter 2. Production Methods -- 2.1. Fish farming -- 2.1.1. Traditional fish farming -- 2.1.2. Fish farming with transgenic fish or the concept of the blue revolution -- 2.2. Algoculture -- 2.2.1. Traditional seaweed farming -- 2.2.2. Transgenic algae production -- Chapter 3. Biotechnological Processing Methods -- 3.1. Enzymatic engineering (enzymatic hydrolysis) -- 3.1.1. Enzymatic engineering applied to fish matrices -- 3.1.2. Enzymatic engineering applied to algal matrices -- 3.2. Fermentation -- 3.2.1. Fermentation applied to fish matrices -- 3.2.2. Fermentation applied to algal matrices -- Chapter 4. Products and Markets -- 4.1. Some examples of marketed and traditional products -- 4.2. Main markets -- Chapter 5. Regulations -- 5.1. Transgenic products -- 5.2. Other products -- Conclusion.