Tape seagrass (Enhalus acoroides) as a bioindicator of trace metal contamination in Merambong shoal, Johor Strait, Malaysia

MARINE POLLUTION BULLETIN

卷:126

Article

Sidi, Nordiani¹  Aris, Ahmad Zaharin¹  Yusuff, Ferdaus Mohamat¹  Looi, Ley Juen¹  Mokhtar, Nor Farhanna¹ 

[1] Univ Putra Malaysia, Fac Environm Studies, Dept Environm Sci, Serdang 43400, Selangor, Malaysia

关键词: Bioindicator;    Merambong shoal;    Seagrass;    Trace metal;    Translocation factor;   

DOI  :  10.1016/j.marpolbul.2017.10.041

来源: Elsevier

【 摘 要 】

Revealing the potential of seagrass as a bioindicator for metal pollution is important for assessing marine ecosystem health. Trace metal (Cd-111, Cu-63, Ni-60, Pb-208, (66)m) concentrations in the various parts (root, rhizome, and blade) of tape seagrass (Enhalus acoroides) collected from Merambong shoal of Sungai Pulai estuary, Johor Strait, Malaysia were acid-extracted using a microwave digester and analysed via inductively coupled plasma mass spectrometry (ICP-MS). The ranges of trace metal concentrations (in mu g(-1) dry weight) were as follows: Cd (0.05-0.81), Cu (1.62-27.85), Ni (1.89-9.35), Pb (0.69-4.16), and Zn (3.44-35.98). The translocation factor revealed that E. acoroides is a hyperaccumulator plant, as its blades can accumulate high concentrations of Cd, Cu, Ni, and Zn, but not Pb. The plant limits Pb mobility to minimize Pb's toxic impact. Thus, E. acoroides is a potential bioindicator of metal pollution by Cd, Cu, Ni, and Zn in estuarine environments.

【 授权许可】

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