Planted mangroves cap toxic petroleum-contaminated sediments
Article
Article Title | Planted mangroves cap toxic petroleum-contaminated sediments |
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ERA Journal ID | 39756 |
Article Category | Article |
Authors | Waryszak, Paweł, Palacios, Maria M., Carnell, Paul E., Yilmaz, I. Noyan and Macreadie, P.I. |
Journal Title | Marine Pollution Bulletin |
Journal Citation | 171 |
Article Number | 112746 |
Number of Pages | 6 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0025-326X |
1879-3363 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.marpolbul.2021.112746 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0025326X21007803 |
Abstract | Mangroves are known to provide many ecosystem services, however there is little information on their potential role to cap and immobilise toxic levels of total petroleum hydrocarbons (TPH). Using an Australian case study, we investigated the capacity of planted mangroves (Avicennia marina) to immobilise TPH within a small embayment (Stony Creek, Victoria, Australia) subjected to minor oil spills throughout the 1980s. Mangroves were planted on the oil rich strata in 1984 to rehabilitate the site. Currently the area is covered with a dense mangrove forest. One-meter-long sediment cores revealed that mangroves have formed a thick (up to 30 cm) organic layer above the TPH-contaminated sediments, accumulating on average 6.6 mm of sediment per year. Mean TPH levels below this organic layer (30–50 cm) are extremely toxic (30,441.6 mg kg−1), exceeding safety thresholds up to 220-fold which is eight times higher when compared to top layer (0–10 cm). |
Keywords | Total petroleum hydrocarbons ; Oil spill immobilisation ; Sediment contamination ; Planted mangroves |
ANZSRC Field of Research 2020 | 410402. Environmental assessment and monitoring |
410401. Conservation and biodiversity | |
410504. Surface water quality processes and contaminated sediment assessment | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Deakin University |
https://research.usq.edu.au/item/z2y57/planted-mangroves-cap-toxic-petroleum-contaminated-sediments
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