Research funded by FEDER/COMPETE and Fundação para a Ciência e Tecnologia (FCT) UIDB/MAR/04292/2020 to MARE, and to the Integrated Programme of SR&TD “Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (Centro-01-0145-FEDER-000018) and to Rede Nacional de Ressonância Magnética Nuclear (RNRMN, UC-NMR). Publisher Copyright: © 2024 by the authors.; Crithmum maritimum L. (sea fen...