1. Structures, Sources, Physicochemical Properties, and Applications of Marine Polysaccharides.- 2. Marine Oligosaccharides Source, Structure, Preparation Methods and Physiological Activity and Applications.- 3. Tools for Mining, Expression and Modification of Marine Polysaccharlde Degrading Enzymes.- 4. Chitinase.- 5. Chitosanase.- 6. Alginate lyases.- 7. Agarase.- 8. Chondroitinase.- 9. Carrageenase.- 10. Fucanase.- 11. Porphyranase.- 12. Ulvan lyase.