RT journal article T1 Evaluation of three photosynthetic species smaller than ten microns as possible standard test organisms of ultraviolet-based ballast water treatment A1 Rivas Zaballos, Ignacio A1 Romero Martínez, Leonardo A1 Moreno Garrido, Ignacio A1 Acevedo Merino, Asunción A1 Nebot Sanz, Enrique A2 Tecnologías del Medio Ambiente K1 Ballast water K1 Ultraviolet disinfection K1 Fluorescence K1 Phaeodactylum tricornutum K1 Anabaena sp K1 Synechococcus sp AB The Ballast Water Management Convention (BWMC) establishes limits for viable organisms in discharged ballastwater. However, organisms smaller than 10 μm are not considered in this regulation although they represent, insome regions, the majority of the phytoplankton organisms in marine water. The objective in this study is toassess three photosynthetic species smaller than 10 μm as potential standard test organism (STO) in experimentationfocused on the inactivating efficacy of ultraviolet treatments (UV). A growth modelling method wasemployed to determine the reduction of the viable cell concentration under either light or dark post-treatmentconditions to evaluate the importance of the photoreactivation. In spite of its moderate growth rate, the highUV resistance in combination with the abundance and worldwide distribution of Synechococcus sp. and theenvironmental importance of this species constitute important reasons for considering Synechococcus sp. as avaluable STO for ballast water treatment. PB ELSEVIER SN 0025-326X YR 2021 FD 2021-06 LK http://hdl.handle.net/10498/25005 UL http://hdl.handle.net/10498/25005 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 06-nov-2026