Trace metal content in sediment cores and seagrass biomass from a tropical southwest Pacific Island

MARINE POLLUTION BULLETIN

卷:171

Article

Singh, Shalini^1,2  Lal, Monal M.^3,4,5  Southgate, Paul C.^3,4  Wairiu, Morgan¹  Singh, Awnesh¹ 

[1] Univ South Pacific, Pacific Ctr Environm & Sustainable Dev, Lower Laucala Campus,Laucala Bay Rd, Suva, Fiji

[2] Fiji Natl Univ, Coll Agr Fisheries & Forestry, Koronivia, Nausori, Fiji

[3] Univ Sunshine Coast, Australian Ctr Pacific Isl Res, Maroochydore, Qld 4558, Australia

[4] Univ Sunshine Coast, Sch Sci Technol & Engn, Maroochydore, Qld 4558, Australia

[5] Univ South Pacific, Sch Agr Geog Environm Ocean & Nat Sci, Div Marine Studies, Lower Laucala Campus,Laucala Bay Rd, Suva, Fiji

关键词: Halophila ovalis;    Halodule pinifolia;    Halodule uninervis;    Trace metal;    Seagrass;    Sediment;   

DOI  :  10.1016/j.marpolbul.2021.112745

来源: Elsevier

【 摘 要 】

A unique feature of seagrass among other ecosystem services is to have high phytoremediation potential that is a cost-effective plant-based approach and environmentally friendly solution for metal contamination in coastal areas. The goal of this study was to assess the phytoremediation prospective of seagrass for Cu, Fe, Mn and Zn in Fiji Islands. Heavy metal content was measured in sediments and tissues of the seagrasses Halophila ovalis, Halodule pinifolia and Halodule uninervis to test for local-scale differences. The local study shows that metal concentration in sediment and seagrass tissue was significantly variable, regardless of species and sediment type. Sedimentary concentration of Cu, Fe, Mn and Zn obtained in the present study seemed to be lower than that of previous studies. The results support that H. ovalis is a good bioindicator species since it accumulated up to 5-fold more of these metals compared to the Halodule species.

【 授权许可】

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