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read moreBy cryopreserving cells of reef-building coral species in the largest frozen repository of living coral in the world, Taronga Zoo scientists are making a significant contribution to helping the reef survive environmental pressures.
Taronga’s CryoDiversity Bank was established in 1995 and houses the world’s largest frozen coral repository in a living genebank that advances the understanding of coral biology and adaptation to oceanic climate change. It is the only wildlife bank in Australia with permanent research staff specialised in animal physiology, cryobiology and wildlife population management.
Taronga’s Dr Rebecca Hobbs and Dr Justine O’Brien worked on the collection and preservation of coral sperm samples during the spawning event that took place last December. These samples are stored at the Taronga CryoDiversity Bank at Taronga Western Plains Zoo Dubbo and Taronga Zoo Sydney.
“We banked three new coral species into the Taronga CryoDiversity Bank, with the Great Barrier Reef collection now having 29 different coral species represented,” said Senior Reproductive Biologist, Dr Rebecca Hobbs.
The team also banked coral samples from four different reefs in the northern region of the Greater Barrier Reef, adding to the genetic diversity of the species already represented in the Taronga CryoDiversity Bank.
Dr Hobbs added “the bank now includes living samples from reefs across the northern, southern and central region of the Great Barrier Reef, this includes reproductive cells from high conservation value, heat-tolerant corals.
Taronga’s Reef Recovery Project has been operating since 2011 and now serves as a model for similar approaches around the globe. Like any successful conservation program it requires ongoing commitment to understand the problem and create integrated solutions that are responsive to changes as they emerge.
“Over the past 10 years we have worked collaboratively to develop and apply new technologies to preserve cells. Our work demonstrates the ability of cryopreserved coral sperm to fertilise fresh coral eggs and produce juvenile corals,” said Dr Hobbs.
As environmental events and stressors lead to the loss of coral species and threaten the future of the Great Barrier Reef, initiatives such as the Taronga CryoDiversity Bank offer a means to secure the current genetic diversity of the reef. For coral species to have any chance of adapting to environmental stressors like climate change, reef genetic diversity is the linchpin.
Dr Hobbs continued “Cryopreservation and biobanking of living coral cells allow us to buy time and capture the current genetic diversity of the Great Barrier Reef before it’s lost. We will use these samples in the coming years, or even decades, to breed new corals, helping safeguard the reef’s future.”
In 2021, Taronga will embark on a new critical phase through the support of the Reef Restoration and Adaptation Program (RRAP), the world’s largest effort to develop effective interventions to help coral reefs resist, adapt to and recover from the impacts of climate change. RRAP partners include the Australian Institute of Marine Science, the Great Barrier Reef Foundation, CSIRO, The University of Queensland, QUT, Southern Cross University and James Cook University. The Program is funded by the Partnership between the Great Barrier Reef Foundation and the Australian Government's Reef Trust.
This important program was highlighted on the International Day of Women and Girls in Science, 11th February as an all-female team from Taronga has led the cryopreservation of the Great Barrier Reef for the past 10 years.
Dr Justine O’Brien said diversity is key to the success of Taronga’s scientific programs on many levels.
“At Taronga, 67% of the Welfare Conservation and Science team are female and leading the way with projects focused on wildlife health, biodiversity conservation, ecology, nutrition and conservation behaviour and welfare.
“Our commitment to an organisational culture that supports and enables diversity across gender, cultural background and other workforce dimensions is integral in advancing our conservation science programs and ensuring Taronga remains a leader in conservation.”
Taronga’s CryoDiversity Bank was established in 1995 and houses the world’s largest frozen coral repository in a living genebank that advances the understanding of coral biology and adaptation to oceanic climate change. It is the only wildlife bank in Australia with permanent research staff specialised in animal physiology, cryobiology and wildlife population management.
Image: Taronga Zoo Reef Conservation Dr Rebecca Hobbs and Dr Justine O'Brien courtesy of taronga.org.au/
16th February 2021 - University students participate in conservation initiatives at Taronga Zoo
23rd January 2021 - NSW Government approves plan for new Australian animal precinct at Sydney’s Taronga Zoo
8th December 2020 - Taronga Zoo Sydney to reopen Sky Safari observing COVIDSafety
9th November 2020 - Taronga Zoo plans for new Wildlife Hospital and upgraded Reptile Centre with government and private funding
20th October 2020 - Taronga Zoo marks National Water Week with exhibition in ‘Backyard to Bush’ education precinct
1st September 2020 - Taronga Conservation Society appoints new marketing director
13th July 2020 - Taronga Conservation Society’s ‘virtual zoo’ proves an online success
2nd June 2019 - Taronga Zoo helps educate students on protection of endangered species
30th January 2019 - Taronga Zoo Director recognised for commitment to wildlife conservation
25th September 2016 - Taronga Zoo gets approval for $30 million conservation centre
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