Relationship between extracellular polysaccharide (EPS) content and colony size of Microcystis is colonial morphology dependent

- The relationship between EPS content and Microcystis colony size in Lake Taihu was analyzed.
- Relation between EPS content and colony size of Microcystis is colonial morphology dependent.
- The maximum EPS content of Microcystis wesenbergii and Microcystis aeruginosa appeared in the size class 100-150 μm.
- The EPS content of Microcystis flos-aquae increased along with an increase in colony size.