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Human activity has wiped out oyster reefs around the world, and most tropical reefs disappeared long ago. Many vanished so completely that they left almost no sign behind. But in Australia, some tropical oyster reefs have not only held on - they have actually flourished.

Discover how tropical oyster reefs are reshaping what we know about coastal ecosystems. This presentation highlights new research from Queensland showing that, while oyster reefs have vanished from many tropical regions, some in Australia have survived - and even thrived.

At the centre of the story is Saccostrea lineage B, a newly confirmed reef-building oyster species that helps form complex, living habitats. By comparing reefs at Gladstone, Mapoon, and Proserpine, the research reveals how reef structure, location, and substrate shape the invertebrate communities these ecosystems support.

The findings show that these reefs are not just remnants of the past - they are active, diverse ecosystems with major implications for biodiversity, restoration, and coastal conservation. From larger and more abundant invertebrate communities at Gladstone to the strong ecological role of lower intertidal and shelly habitats, the study offers fresh insight into how tropical oyster reefs function.

This presentation will explore why these overlooked reefs matter, what makes them different, and how they could inform future conservation and restoration strategies in tropical Australia and beyond.

 

NOTE: THIS EVENT IS ALSO AVAILABLE ONLINE.
 
Register and the Microsoft Teams meeting link to join online will be provided in your 'Registration Confirmation' email.

 
Dr Marina Richardson is a Research Fellow — Environmental Sustainability and Management within the School of Environment and Science (ESC) at Griffith University.   
 
Dr Richardson's research focuses on the functional ecology of tropical oyster reefs, with an emphasis on species within the genus Saccostrea. She is interested in the roles that tropical oyster reefs play in coastal ecosystems, including mapping and characterising newly documented oyster reefs, understanding how tropical oyster reefs develop, and quantifying associated invertebrate communities. Her work aims to inform management strategies that support the protection and restoration of these understudied ecosystems.
 
 

Reading:

Newly discovered tropical oyster reefs are thriving across northern Australia – they deserve protection.. The Conversation. Marina Richardson. 5 May 2025

Richardson, Marina A., et al. "Characterising Tropical Oyster Reefs: Invertebrate-Environment Associations and a Newly Documented Reef Building Species." Marine Environmental Research, vol. 208, 2025, p. 107136. Elsevier

 

Where
Deception Bay Environmental Hub
7 Joseph Crescent
Deception Bay, QLD
Australia
Organizers

PR

Peter Row
organiser.redcliffesunrise@gmail.com
0499099571