Becherucci, M.E. and Seco Pon, J.P. 2026. First record of Undaria pinnatifida (Laminariales, Phaeophyceae) in beach-cast macroalgae from the southeastern coast of Buenos Aires province, Argentina. Marine and Fishery Sciences (MAFIS). 39, 3 (Jun. 2026). DOI:https://doi.org/10.47193/mafis.3932026010704.