title: Evolution of phytoplankton cultures after ultraviolet light treatment.
abstract: Introducing invasive species in new environments through ballast water is a specific problem of contamination and has recently become one of the main concerns of Maritime Organizations. Ultraviolet-C radiation (UV-C) is a technological alternative to prevent this maritime pollution. This study addresses the effect of UV-C on different phytoplankton cultures and also the ability to recover following exposure to damage. A UV-C low-pressure lamp irradiates the cultures. The distance from the source and the thickness of the layer prevent part of the energy from reaching the culture and the disinfective process is diminished. Some cultures such as Chlorella autotrophica and Chaetoceros calcitrans can easily recover from UV-C damage. However, Phaeocystis globosa does not have this ability. C. calcitrans forms cysts and exhibits two different behaviours depending on the dose applied.
authors.affiliation: University of Oviedo, Department of Chemical and Environmental Engineering, Faculty of Chemistry, Av. Julián Clavería 8, Oviedo, Spain.
authors.forename: L F
authors.initials: LF
authors.lastname: Martínez
authors.forename: M M
authors.initials: MM
authors.lastname: Mahamud
authors.forename: A G
authors.initials: AG
authors.lastname: Lavín
authors.forename: J L
authors.initials: JL
authors.lastname: Bueno
mesh_terms: D005075:Biological Evolution; D002708:Chlorella / Q000502:physiology / Q000528:radiation effects; D004203:Disinfection / Q000379:methods*; D058087:Haptophyta / Q000502:physiology / Q000528:radiation effects; D010788:Photosynthesis / Q000528:radiation effects; D010839:Phytoplankton / Q000254:growth & development* / Q000502:physiology / Q000528:radiation effects; D011830:Radiation Effects; D014466:Ultraviolet Rays / Q000009:adverse effects*