Podcast S6E5. Dr Barbara Wueringer, Discovering the Elusive Sawfish
Digging into old newspaper articles to learn about the historic distribution of sawfish
Healthy waterways underpin our lifestyles and livelihoods. When waterways thrive, so do we.
SEASON 4 | EPISODE 8
Despite its name, the Johnstone River snapping turtle is no snappier than any other freshwater turtle – and is perhaps better known by its alias, the ‘bum breather’. According to turtle expert Alistair Freeman, this ability for cloacal respiration is thought to enable bum breathers to stay under water for prolonged periods to avoid predation – although this is still only theory.
Robust and adaptable, the Johnstone River snapping turtle is an important contributor to keeping its freshwater ecosystem healthy, thanks to its enthusiastic consumption of detritus and dead things. When it’s not hoovering up these tasty morsels, it enjoys hanging out in areas of river with deep pools and riffles, and healthy riparian vegetation.
Alistair is a Senior Technical Officer for the Queensland Government’s Aquatic Species Program and joins us to share his expertise and insights into the quirky turtle!
Further information
Read more about the Johnstone River snapping turtle
Digging into old newspaper articles to learn about the historic distribution of sawfish
Improving fish connectivity in between freshwater and saltwater habitat areas for diadromous fish
New green technologies are being developed to filter nutrients from water.
Martine joined the Wet Tropics Waterways team as a Science Technical Officer in early 2024 and is keen to apply her experience in statistical programming and database development for the Report Card.
She is an environmental scientist and ecologist and has worked on water quality and aquatic ecology projects as a consultant and in private industry for over 20 years.
Martine has many hobbies and is currently dabbling in horticulture.
With a degree in marine biology and zoology from JCU, Phil has had a diverse career covering research in fisheries biology, 15 years in reef tourism and 13 years with GBRMPA delivering engagement and partnerships programs. Since 2019 he has been self-employed and operates as a consultant to a range of stakeholders on waterway related programs.
He is a keen fisherman.
James joined Wet Tropics Waterways as Executive Officer in 2021 and is passionate about working with stakeholders to communicate the value of our unique waterways. His role involves facilitating and coordinating our partnership program, growing our network and investment into the report card program, and science communication. James oversaw the 2022 Innovations in Waterway Health Forum, and hosted season four of the Reef and Rivers podcast.
James is an ecologist and has previously worked on wetland management in the Murray Darling basin, fish passage in Mackay, and aquatic research in the Wet Tropics.
Outside of work you’ll find him in a local waterway with a mask and snorkel, or hiking or biking around our beautiful region.
Richard has been the Science Technical Officer for Wet Tropics Waterways since 2016. His role involves producing the annual results for the waterway health assessment of the wet tropics region using data from a wide range of sources, to present as scores and grades, as well as developing new indicators to address knowledge and monitoring gaps. He works in collaboration with technical staff at other regional report cards.
Richard has a background in freshwater ecology research projects and environmental assessments with CSIRO, University of Queensland, Queensland Government and as a consultant. For a long time he’s been interested in freshwater aquaculture and continues this interest through farming freshwater crayfish, alongside other farming activities.