02/05/2024 Dublin, Ireland. Minister for the Environment Eamon Ryan marks the publication of Aquatic Plants in Ireland-A Photographic Guide with co-authors Dr Ronan Matson of Inland Fisheries Ireland, Dr Rossa Ó'Briain Inland Fisheries Ireland, and Prof. Joe Caffrey of Invas BioSecurity Ltd at Leinster House on Wednesday, May 1st, 2024. Photograph: Leon Farrell / Photocall Ireland