Two Asian green mussels have been found in Weipa less than six months after a trio was found on a vessel that sailed from Western Cape York waters. Photo: Supplied.
The western Cape York community is being asked to help protect one of their favourite places to be – the water – after an invasive and prohibited marine pest was found locally for the second time in less than six months.
Two Asian green mussels were discovered on a cyclone mooring in Weipa last month during surveillance efforts which began when three of the pest species were found on a vessel that sailed from the township last September.
Biosecurity Queensland is working with a range of stakeholders to determine whether the Asian green mussel is established in Weipa or if there is a risk of establishment, and is asking residents to report any potential sightings immediately.
“Early detection will increase the potential for eradication if numbers are small and limited to a small area,” a Biosecurity Queensland spokesperson said.
“Surveillance activities will continue in early 2025 following the predicted spawning period, which generally occurs during the wet season.
“Activities include settlement plate and vessel inspections, underwater inspections of wharves, pylons and moorings, using remotely operated vehicles and the collection of water samples for eDNA analysis.”
The spokesperson explained Asian green mussels could be introduced as biofouling on boat hulls, in ship ballast water, through internal seawater systems of vessels, or on items such as aquaculture equipment.
“They can outcompete native species, spreading rapidly where local predators are limited, and have economic impacts,” they said.
“The presence of an invasive marine pest can also lead to vessel movement restrictions, which can impact shipping operations.”
If you think you have seen Asian green mussels, report it immediately to Biosecurity Queensland on 13 25 23.
