
Podcast S6E10. Steve and Richelle Lizzio, Growing Bananas Beside the Reef.
Managing the environmental is actually about managing people and understanding more about how they interact with it.
Healthy waterways underpin our lifestyles and livelihoods. When waterways thrive, so do we.
SEASON 4 | EPISODE 3
Bullsharks have a reputation as strong, aggressive sharks and are one of the most common species that anglers are likely to encounter in the estuaries and inshore marine zone.
Nicolas Lubitz is a Ph.D candidate at James Cook University. He tracks bullsharks and is interested in where they travel and why. Considering that Nico had such a fear of sharks when he was a kid that he couldn’t even swim in the local pool, it might seem odd that he went on to study them – but Nicolas says fascination won out.
Nicolas joins us to talk about the unique life cycles of bull sharks, whether they might be exhibiting natal philopatry, and what climate change means for their habitat range.

Managing the environmental is actually about managing people and understanding more about how they interact with it.

Managing the environmental is actually about managing people and understanding more about how they interact with it.

It may be a long way off but the Tablelands has 10 river catchments and contributes up to 22% of annual flow to the reef.

Martine joined the Wet Tropics Waterways team as a Science Technical Officer in early 2024. 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. She is using her experience in statistical programming and database development to develop new systems for the Report Card.

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.

Simon has over 30 years’ experience advocating for waterways across academia, government and the private sector. He started out in marine botany with a fascination for seagrass, mangroves and macroalgae, and has gone on to lead major environmental initiatives both in Australia and overseas. He has established report cards in eight countries.

Louise joined Wet Tropics Waterways as Executive Officer in 2025.
Louise Hateley is an environmental scientist with over 20 years of experience in natural resource management, water quality, and catchment modelling across government, research, and community sectors. She has held senior scientific and project coordination roles with the Department of Natural Resources, Mines and Energy and Terrain NRM, leading projects focused on GBR catchment health, waterway management, and sustainable land use. With a record of published research, stakeholder engagement, and project delivery, Louise combines scientific expertise with practical leadership to drive initiatives that protect the Wet Tropics and support community collaboration.