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

Shalini Singh; Monal M Lal; Paul C Southgate; Morgan Wairiu; Awnesh Singh

doi:10.1016/j.marpolbul.2021.112745

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

Journal article

Peer reviewed

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

Shalini Singh, Monal M Lal, Paul C Southgate, Morgan Wairiu and Awnesh Singh

Marine Pollution Bulletin, Vol.171, pp.1-11

2021

DOI: https://doi.org/10.1016/j.marpolbul.2021.112745

PMID: 34325150

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Abstract

Halodule pinifolia

Halodule uninervis

Halophila ovalis

Seagrass

Sediment

Trace metal

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. •Trace metal content was highly significant for sediments and seagrass tissues.•Trace metal accumulation in sediments and seagrass tissue indicates no to moderate coastal pollution.•Bioaccumulation capacity of Halophila ovalis was up to 5-fold higher than Halodule species.

Details

Title: Trace metal content in sediment cores and seagrass biomass from a tropical southwest Pacific Island
Authors: Shalini Singh (Corresponding Author) - University of the South Pacific
Monal M Lal (Author) - University of the Sunshine Coast, Queensland, Australian Centre for Pacific Islands Research
Paul C Southgate (Author) - University of the Sunshine Coast, Queensland, Australian Centre for Pacific Islands Research
Morgan Wairiu (Author) - University of the South Pacific
Awnesh Singh (Author) - University of the South Pacific
Publication details: Marine Pollution Bulletin, Vol.171, pp.1-11
Publisher: Elsevier Ltd
Date published: 2021
DOI: 10.1016/j.marpolbul.2021.112745
ISSN: 1879-3363
PMID: 34325150
Organisation Unit: Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99565408602621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Environmental Sciences; Marine & Freshwater Biology

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