Full description
This three-year project (1995-1998) assessed short and long term effects of commonly transported oils and dispersed oils on Australian mangrove flora and fauna. Short term studies were conducted under planthouse and field conditions. Planthouse experiments were carried out at the Australian Institute of Marine Science, Cape Ferguson. Field studies were carried out at Fisherman's Landing, Port Curtis, near Gladstone, within an area approved for reclamation by the Gladstone Port Authority. Longer term effects were assessed from spill incidents which occurred over the last 30 years at 9 sites around Australia. In planthouse studies, five oils (Bunker C fuel oil, Arabian Light crude, Gippsland Light crude, Thevenard crude, Woodside condensate) and their dispersed mixtures, using four dispersants (Corexit 9580, Corexit 9527, Shell VDC, BP-AB) were applied to four species of mangrove seedlings (Ceriops spp., Rhizophora stylosa, Avicennia marina, Aegiceras corniculatum) grown in specially constructed tidal tanks. The response of seedlings was monitored for around five months.In field experiments, oil and dispersed oil treatments were applied on replicated mature plots of Rhizophora stylosa under strictly controlled conditions. Field sites were monitored and sediment cores were collected at 2 days, then 1, 7, 13 and 22 months post-spill. The composition and concentration of hydrocarbons in the sediment cores at various depths were measured and evaluated.In the field study, the impact of oil and dispersed oil treatments on key flora and fauna was also evaluated. Leaf biomass, and mortality rates of mature Rhizophora stylosa trees and seedlings were measured. The impact on both epifauna and infauna was measured in terms of species diversity, density, biomass and mortality. The presence of Grapsid crabs from the time of oiling to 22 months afterwards was monitored.Oil, washed ashore after accidents in regular operations of the petroleum and shipping transport industries can cause significant damage to coastal marine ecosystems, particularly those in the intertidal zone. In Australia, mangroves dominate intertidal shorelines on most of the continent. Mangrove forests are extremely vulnerable to oil spills since oil deposits on above-ground breathing roots, subsurface feeding roots, and a myriad of associated fauna. This project was undertaken to assess short and long term impacts on mangroves of oils and dispersants used in Australian waters, particularly regarding their effect on predominant mangrove species in this country; Avicennia marina and Rhizophora stylosa. Findings from all studies were used to form the basis for improved guidelines and recommendations for the protection, cleanup, and restoration of oiled mangrove habitat around Australia, and elsewhere.
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Maintenance and Update Frequency: notPlannedNotes
CreditBurns, Kathryn A, Dr (Co Investigator)
Modified: 19 09 2025
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Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia: Duke NC and Burns KA (2003) Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. pp. 232-363. In: Australian Petroleum Production and Exploration Association (ed) Environmental implications of offshore oil and gas development in Australia : further research. A compilation of three scientific marine studies. 521 p.
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Dispersant use and a bioremediation strategy as alternate means of reducing impacts of large oil spills on mangroves:The Gladstone field trials: Duke NC, Burns KA, Swannell RPJ, Dalhaus O and Rupp RJ (2000) Dispersant use and a bioremediation strategy as alternate means of reducing impacts of large oil spills on mangroves:The Gladstone field trials. Marine Pollution Bulletin 41: 403-412.
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Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. Final Report: Duke NC and Burns KA (1999) Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. Final Report. Australian Institute of Marine Science. 212 p.
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Australian mangrove oil spill reports: Research in to the Bioremediation of oil spills in tropical Australia: with particular emphasis on oiled mangrove and salt marsh habitats. Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia: Duke NC, Burns KA and Swannell RPJ (2002) Australian mangrove oil spill reports: Research in to the Bioremediation of oil spills in tropical Australia: with particular emphasis on oiled mangrove and salt marsh habitats. Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. Australian Maritime Safety Authority and APPEA. CD.
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Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. Executive summary: Duke NC and Burns KA (1999) Fate and effects of oil and dispersed oil on mangrove ecosystems in Australia. Executive summary. Final Report. Australian Institute of Marine Science. 23 p.
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Weathering of hydrocarbons in mangrove sediments: testing the effects of using dispersants to treat oil spills: Burns KA, Codi S, Pratt C and Duke NC (1999) Weathering of hydrocarbons in mangrove sediments: testing the effects of using dispersants to treat oil spills. Organic Geochemistry 30 :1273-1286.
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Surveys of oil spill incidents affecting mangrove habitat in Australia: A preliminary assessment of incidents, impacts on mangroves, and recovery of deforested areas: Duke NC, Ellison JC and Burns KA (1998) Surveys of oil spill incidents affecting mangrove habitat in Australia: A preliminary assessment of incidents, impacts on mangroves, and recovery of deforested areas. APPEA Journal 646-653.
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Effects of oil and dispersed oil on mature mangroves in field trials at Gladstone, Australia: Duke NC, Burns KA, Ellison JC, Rupp RJ and Dalhaus O (1998) Effects of oil and dispersed oil on mature mangroves in field trials at Gladstone, Australia. APPEA Journal 637-653.
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Effects of oils and dispersed-oils on mangrove seedlings in planthouse experiments: a preliminary assessment of results two months after oil treatments: Duke NC, Burns KA and Dalhaus O (1998) Effects of oils and dispersed-oils on mangrove seedlings in planthouse experiments: a preliminary assessment of results two months after oil treatments. APPEA Journal 631-636.
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Lessons from the experimental oiling of mature mangroves: Duke NC (1998) Lessons from the experimental oiling of mature mangroves. E & P 12: 6-7.
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