title: Quantification of the ultrasound induced sedimentation of Microcystis aeruginosa.
abstract: It has been known for more than 40 years that vacuolate organisms can be induced to sediment with ultrasound. However, robust indicators are still needed to compare the efficacy of different treatments. A repeatable index is proposed that makes it possible to quantify the ultrasonic induced sedimentation. The procedure is used to monitor the long term sedimentation of Microcystis aeruginosa after sonication. Results reveal that the sedimentation process continues after gas vesicles have fully recovered, although at a slower rate.
authors.affiliation: School of Mechanical Engineering, University of Adelaide, Australia. Electronic address: alfonso.rodriguezmolares@adelaide.edu.au.
authors.forename: Alfonso
authors.initials: A
authors.lastname: Rodriguez-Molares
authors.affiliation: Australian Water Quality Centre, SA Water Corporation, Australia; School of Earth and Environmental Sciences, University of Adelaide, Australia.
authors.forename: Sandy
authors.initials: S
authors.lastname: Dickson
authors.affiliation: Australian Water Quality Centre, SA Water Corporation, Australia.
authors.forename: Peter
authors.initials: P
authors.lastname: Hobson
authors.affiliation: School of Mechanical Engineering, University of Adelaide, Australia.
authors.forename: Carl
authors.initials: C
authors.lastname: Howard
authors.affiliation: School of Mechanical Engineering, University of Adelaide, Australia.
authors.forename: Anthony
authors.initials: A
authors.lastname: Zander
authors.affiliation: Australian Water Quality Centre, SA Water Corporation, Australia; School of Earth and Environmental Sciences, University of Adelaide, Australia.
authors.forename: Mike
authors.initials: M
authors.lastname: Burch
mesh_terms: D046931:Microcystis / Q000737:chemistry* / Q000166:cytology; D013010:Sonication
keywords: Buoyancy; Collapse; Cyanobacteria; Gas vesicle; Sedimentation