Port River anchor ban lifted

18 March 2011

seaweed A ban on anchoring in the Port River and Barker Inlet, put in place to combat the invasive seaweed caulerpa taxifolia, has been lifted.

As part of the State Government’s ongoing program to manage the spread of this invasive seaweed in South Australian waters, a section of the Port River and Barker Inlet has now been declared a ‘containment area’.

Biosecurity SA says that the designated containment area, in place as of 1 March 2011, is approximately defined as those waters enclosed by an imaginary line across the entrance of the breakwaters at Outer Harbor, along the seaward breakwater to its northern end, then northward to the Black Pole, and then in a north-easterly direction to the shore. This area is generally accepted as being the Port River estuary.

“The lifting of the anchoring ban is the result of survey work which indicated the weed will naturally die-off during colder months and has colonised a smaller area than originally anticipated,” Executive Director, Biosecurity SA, Will Zacharin said.
“Monitoring will continue to ensure the situation does not change.”

Mr Zacharin said that Port River users could help stop spread of the weed by remaining vigilant and thoroughly cleaning all equipment, including their boats.

“It is important that any weed caught on boat anchors, fishing lines or diving equipment is removed and not returned to the water,” he said.

Anyone finding the weed outside of known areas should contact Fishwatch on 1800 065 522.

Find detailed information about caulerpa taxifolia as well as an exact description, map and coordinates for the containment area.

Image courtesy of Primary Industries and Resources SA