GERAKARIS, V., PANAYOTIDIS, P., VIZZINI, S., NICOLAIDOU, A. and ECONOMOU-AMILLI, A. 2017. Effectiveness of Posidonia oceanica biotic indices for assessing the ecological status of coastal waters in Saronikos Gulf (Aegean Sea, Eastern Mediterranean). Mediterranean Marine Science. 18, 1 (Oct. 2017), 161–178. DOI:https://doi.org/10.12681/mms.1893.