News & Media releases

Articles by year

Amazon frogbit - confirmed sighting in Bayswater Brook

A highly invasive species, Amazon frogbit (Limnobiumin laevigatum) has been found in Bayswater Brook.

Amazon frogbit is a floating aquatic plant that is sold for use in aquariums but is a highly invasive species when allowed to populate waterways.

Prevention and early detection are the key to managing the species.
The Department of Biodiversity, Conservation and Attractions is working closely with officers in local government and at the Water Corporation to search for the initial source point along the Bayswater Brook. There is a risk that rainfall may have spread the weed into the Swan River.

How can you assist?

Members of the public can play a helpful role in early identification and even prevention of the spread of Amazon frogbit.
If you see a new plant you do not recognise, getting it properly identified before controlling it is important, as it is easy to mis-identify plants.

For more information, or if you have seen Amazon frogbit in your local waterway, please contact

Download the Amazon frogbit information flyer here.

Threatened bird species nesting on Point Walter Spit

The Department of Biodiversity, Conservation and Attractions is encouraging recreation river users and fishers to please avoid Point Walter Spit. There are an estimated 60 breeding pairs of Fairy Terns making use of the vegetation and shoreline at the end of the Spit. The City of Melville has erected signage discouraging access to the end of the Spit.

It is estimated that there are less than 1600 breeding pairs of Fairy Terns left in Western Australia. These tiny birds nest between October and January and, like many shorebirds, will nest above the high-tide mark on sandy beaches, where they lay one or two speckled eggs in a shallow scrape in the sand. The eggs and chicks are highly vulnerable to disturbance as well as predators.

Other birds, including Pied Oyster Catchers and Red-Capped Plovers also nest in this area.  Birdlife WA and the Department of Biodiversity, Conservation and Attractions River Guardians program have recently installed chick shelters at the end of the Spit to give the birds a helping hand and are monitoring the area. 

Learn more about beach nesting birds and what can be done to help protect them by visiting the Birldlife WA website.

Sound Science in the Swan - "What's that sound?' - FREE seminar

Sound travels well in water and, as a result, the underwater world can be a bustling place full of amazing sounds, like dolphin whistles, fish grunts and boat engine roars. The Swan River is no exception. Aquatic animals often use sound as their primary sensory system and predominant form of communication, while humans use sound to explore the underwater environment and also often produce noise as a by-product of our other activities. The Centre for Marine Science and Technology at Curtin University has been working in underwater acoustics for over 30 years with multiple studies in the Swan River, both to investigate components of the ecosystem and to develop techniques for use in more complex environments.

If you would like to know what a dolphin hears when it’s being overtaken by a hasty vessel, or listen to a group of mulloway play a game of ‘who can shout the loudest?’, please come along to the Pan Pacific Hotel on the 20th November to play ‘What’s that sound?’ with the rest of us.

The speakers:
Dr. Miles Parsons is a Research Fellow at the Centre for Marine Science and Technology focussed on the use of acoustic techniques to study fish aggregations and the impacts of sound on marine species.
Dr. Iain Parnum is a Research Fellow at the Centre for Marine Science and Technology focussed on acoustic remote sensing of the underwater environment.
Dr. Sarah Marley is the latest doctoral graduate from the CMST group. Winner of the inaugural Asia-Pacific Three-minute thesis competition, Sarah has communicated her work on dolphin communication in the Swan River and Roebuck Bay to the public all around the world.

Seminar Details:
Monday. 20 November 2017, 6:00 pm – 8:00 pm AWST
Pan Pacific Hotel, 207 Adelaide Terrace, Perth, WA 6000


Applications for Community Rivercare Program Funding Grants are open!

Are YOU passionate about your patch?

The Swan and Canning rivers and their major tributaries are focal features of Perth’s landscape. They are prized for their natural values, recreational opportunities and cultural and social importance.

If you're a community volunteer group helping to improve water quality and conservation in the Swan and Canning rivers then this is for you!

Funding information 

River Guardians Photography Competition 2017

Enter now for your chance to win one of $3500 worth of prizes with the winning photograph being showcased on the cover of LANDSCOPE magazine.

All you have to do is submit an image of what you love about the Swan and Canning Riverpark - it can be anything from dolphins, to having a picnic with your family on the foreshore, watching the sunset over the river or taking a cruise on a boat.

The competition is open to any WA amateur photographers.

Winning entry - Photo featured on the front cover of LANDSCOPE magazine; LANDSCOPE subscription, WA Naturally prizes and camera equipment. VALUE: $2000

Second place prize - LANDSCOPE subscription, WA Naturally prizes and camera equipment. VALUE: $1000

Third place prize - LANDSCOPE subscription, WA Naturally prizes and camera equipment. VALUE: $500

Entries close 30 November 2017. Winners will be announced 20 December 2017.