Statistically distinct ‘high’, ‘moderate’ and ‘low’ metal contamination positions were distinguished across five Sydney estuary embayments for total sedimentary metal concentrations of Ni, Pb and Zn. While statistically distinct total sedimentary As, Cd, Co and Cu concentrations were indicated for the ‘low’ position samples. Mangrove (Avicennia marina) pneumatophore tissue metal concentrations from ‘high’ position trees were statistically distinct for Cd, Ni, Pb and Zn, while root tissue samples from ‘low’ position trees were statistically distinct for As, Cd and Zn. Outcomes from CAP, simple linear regression and DISTLM modelling indicated sedimentary metals were predominantly assimilated into mangrove root tissue, with smaller uptake into pneumatophore tissue. A comparison of floristic tissue metal concentrations indicated mangrove (A. marina) root tissue assimilated higher sedimentary metal concentrations than leaf and root tissue of seagrasses (Zostera capricorni and Halophila ovalis), which had relatively higher metal concentrations than those from pneumatophore and leaf mangrove tissue.

对于镍、铅和锌的总沉积金属浓度，在悉尼河口的五个海湾中区分了统计上不同的“高”、“中”和“低”金属污染位置。虽然统计上不同的总沉积 As、Cd、Co 和 Cu 浓度显示为“低”位置样品。红树林 ( Avicennia marina) 来自“高”位置树的气细胞组织金属浓度对于 Cd、Ni、Pb 和 Zn 具有统计学差异，而来自“低”位置树的根组织样本中的 As、Cd 和 Zn 具有统计学差异。CAP、简单线性回归和 DISTLM 模型的结果表明，沉积金属主要被同化到红树林根组织中，较少吸收到气管组织中。植物区系组织金属浓度的比较表明，红树林（A. marina）根组织吸收的沉积金属浓度高于海草（ Zostera capricorni 和Halophilaovalis）的叶和根组织，而海草的金属浓度高于气孔和叶红树林组织的金属浓度。 .