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Southport in Adelaide’s south is one of the most popular places for fishing and surfing in South Australia. Regular surf life saving carnivals are held at Southport in summer and school excursions are conducted every year within the Port Noarlunga region.
The Southport dune system is one of the largest sand dune complexes along the southern Adelaide metropolitan coastline and is situated at the mouth of the Onkaparinga River, which is also one of Adelaide’s most important estuaries. This is why EBS has teamed up with the City of Onkaparinga to remove invasive woody weed species, such as Acacia Cyclops, Lycium ferocissimum and broadleaf species such as Arctotis, Trachyandra and Gazania.
With the aim to control the spread of invasive species in high conservation areas and push the grass front back into manageable zones, this project will stabilise the dunes and also attract fauna to this environment. Coastal Conservation Officer Jock Conlon said, “the project is coming along well and we are continuing to learn how to best control weeds in such a sensitive environment.” Mr Conlon attributed the weed control techniques that have covered a large amount of ground in a short time frame. “Using weeds as thatch has two benefits; stabilising the sand movement and collecting native seed, which blows around the dune system,” he said.
With revegetation to be undertaken throughout the dunes for dune stabilisation and habitat reconstruction, Mr Conlon said, “formalising a track through the dune system has assisted with directing recreational users through this important remnant. The central track through the dune system is very popular for walkers and joggers.”