Seasonal and local variations of metal concentrations in the seagrass Posidonia oceanica (L.) Delile in the Antikyra Gulf, Greece

摘要: Abstract The accumulation of Fe, Pb, Zn, Cu, Cd, Na, K, Ca and Mg in the leaves seagrass Posidonia oceanica (L.) Delile was studied Gulf Antikyra. investigated area interest because specific composition its substrate (involving bauxite) also nearby discharge wastes from an aluminium factory. All metal concentrations phanerogam were evenly distributed at seven stations where there adequate data for analysis. K displayed significant seasonal variation with high P. during summer autumn low levels winter spring. This could have been effect age-dependent distribution these metals leaves. Significant evident Pb concentrations, which probably associated growth dynamics oceanica. Other factors playing a role biomass calcareous epiphytes on plant (as concerns Ca) interactions binding by tissues. dependence their environment (sediment seawater) relevant. A correlation found between Cd those sediment. comparison Antikyra species belonging to subfamily Posidonioideae other areas is presented. study generally high.