Queensland’s much-loved giant mud crab populations are thriving, with a major new study reaffirming the State Government’s commitment to maintaining a world-class and sustainable fisheries industry.
A recently completed study led by Queensland’s Department of Primary Industries (DPI) and co-funded by the Australian Government through the Fisheries Research and Development Corporation (FRDC) has confirmed that there is no current threat to the sustainability of the species. The research highlights the effectiveness of existing regulations, including the male-only harvest policy and the 15-centimetre legal minimum size limit.
The extensive project analysed approximately 20,000 giant mud crabs collected from across the state, using cutting-edge genetic techniques and satellite tagging to examine stock structure, monitor population health, and deepen the understanding of mud crab biology—particularly the spawning migration patterns of females.
DPI Principal Fisheries Scientist and lead researcher Dr Julie Robins said the findings provide strong scientific reassurance that Queensland’s management frameworks are successfully supporting healthy populations.
“Giant mud crabs are an iconic species and a vital part of Queensland’s fisheries, with our state accounting for 64% of Australia’s commercial harvest,” Dr Robins said.
“A significant success was the robust genetic analysis of the mud crab populations along the east coast and the Gulf of Carpentaria.
“Queensland’s male minimum legal-size limit ensures a proportion of mature males are available to reproduce and over 90% of females sampled were mated and getting ready to spawn. This means there’s no shortage of mature crabs to produce the next lot of offspring.”
Dr Robins said the research not only expanded scientific knowledge but also provided crucial biological reference points for future management.
“This study has added tremendous value to our collective knowledge and laid the groundwork for future discussions about mud crab management in Queensland,” she said.
"The collaborative nature of this project, working side-by-side with the commercial fishers, was invaluable. Their local knowledge was key to successfully gathering data on this iconic species."
As giant mud crabs remain a Queensland favourite—both commercially and recreationally—the study’s findings offer welcome confirmation that current sustainability measures are working, ensuring the species continues to flourish for generations to come.
Dr Julie Robins with one of the 20,000 giant mud crabs measured during the study (Photo Supplied)
Publishers Indemnity. Any individual or entity that places advertising, supplies copy material, or submits editorial content to Core Life Publishing agrees and undertakes to ensure that all such material:- Does not infringe upon any copyright, trademark, or other intellectual property rights;- Is free from any content that could be considered defamatory, libelous, or slanderous;- Does not infringe upon any rights related to privacy or breach of confidence;- Contains no obscene, indecent, or otherwise unlawful material;- Complies fully with the Trade Practices Act and all other applicable laws, regulations, or statutes.Furthermore, by submitting or placing such material, these individuals or entities agree to indemnify and hold harmless the publisher, Core Publishing and Events Pty Ltd, and/or its agents from and against any and all investigations, claims, demands, liabilities, damages, costs, or judgments arising out of or in connection with the material provided. All material is believed to be accurate at the time of printing and remains the copyright of Core Publishing and Events Pty Ltd.
© 2023 Burdekin Life Pty Ltd.
