Aphanizomenon is an important genus of cyanobacteria that inhabits freshwater lakes and can cause choking blooms. Studies on the species Aphanizomenon flos-aquae have shown that it can regulate buoyancy through light-induced changes in turgor pressure. It is also able to move by means of gliding, through the specific mechanism by which this is possible is not yet known.
- Konopka, A., T. D. Brock & A. E. Walsby. 1978. "Buoyancy regulation by planktonic blue-green algae in Lake Mendota, Wisconsin." Arch. Hydrobiol. 83: 524-537.