Latest news with #TarongaConservationSocietyAustralia
The Advertiser
03-07-2025
- General
- The Advertiser
Rare frogs hop back into wild to stop species croaking
More than 500 critically endangered frogs have been released in a national park as part of efforts to save them from extinction. The northern corroboree frogs were bred at Sydney's Taronga Zoo before being released in Brindabella National Park, west of Canberra. It's estimated as few as 1200 of the frogs remain in the wild, with 544 bred in captivity before being released in the park. They weigh about three grams and are roughly the size of a paperclip, but the black and yellow amphibians play an important role in Australia's sub-alpine ecosystem. The calls of previously released frogs have been heard in the wild, proof they can thrive after leaving their captive-breeding environment. "This is the largest frog release within this population to date," Taronga Conservation Society Australia conservation officer Michael McFadden said. Future releases are planned to help bolster the survival of the species, which is only found between 750-1800m above sea level along mountain ranges in NSW and the ACT. The frogs were bred as part of NSW government program to prevent endangered species from going extinct and is among other "rewilding" efforts taking place around the nation. The process involves restoring habitats and re-introducing captive-bred threatened species to the wild in a bid to reduce biodiversity loss. Quolls previously extinct on mainland Australia have been re-introduced in feral-free sanctuary zones, as well as Tasmanian devils. Platypuses, bettongs and bilbies have also been reintroduced in recent years to areas where they previously become extinct. More than 500 critically endangered frogs have been released in a national park as part of efforts to save them from extinction. The northern corroboree frogs were bred at Sydney's Taronga Zoo before being released in Brindabella National Park, west of Canberra. It's estimated as few as 1200 of the frogs remain in the wild, with 544 bred in captivity before being released in the park. They weigh about three grams and are roughly the size of a paperclip, but the black and yellow amphibians play an important role in Australia's sub-alpine ecosystem. The calls of previously released frogs have been heard in the wild, proof they can thrive after leaving their captive-breeding environment. "This is the largest frog release within this population to date," Taronga Conservation Society Australia conservation officer Michael McFadden said. Future releases are planned to help bolster the survival of the species, which is only found between 750-1800m above sea level along mountain ranges in NSW and the ACT. The frogs were bred as part of NSW government program to prevent endangered species from going extinct and is among other "rewilding" efforts taking place around the nation. The process involves restoring habitats and re-introducing captive-bred threatened species to the wild in a bid to reduce biodiversity loss. Quolls previously extinct on mainland Australia have been re-introduced in feral-free sanctuary zones, as well as Tasmanian devils. Platypuses, bettongs and bilbies have also been reintroduced in recent years to areas where they previously become extinct. More than 500 critically endangered frogs have been released in a national park as part of efforts to save them from extinction. The northern corroboree frogs were bred at Sydney's Taronga Zoo before being released in Brindabella National Park, west of Canberra. It's estimated as few as 1200 of the frogs remain in the wild, with 544 bred in captivity before being released in the park. They weigh about three grams and are roughly the size of a paperclip, but the black and yellow amphibians play an important role in Australia's sub-alpine ecosystem. The calls of previously released frogs have been heard in the wild, proof they can thrive after leaving their captive-breeding environment. "This is the largest frog release within this population to date," Taronga Conservation Society Australia conservation officer Michael McFadden said. Future releases are planned to help bolster the survival of the species, which is only found between 750-1800m above sea level along mountain ranges in NSW and the ACT. The frogs were bred as part of NSW government program to prevent endangered species from going extinct and is among other "rewilding" efforts taking place around the nation. The process involves restoring habitats and re-introducing captive-bred threatened species to the wild in a bid to reduce biodiversity loss. Quolls previously extinct on mainland Australia have been re-introduced in feral-free sanctuary zones, as well as Tasmanian devils. Platypuses, bettongs and bilbies have also been reintroduced in recent years to areas where they previously become extinct. More than 500 critically endangered frogs have been released in a national park as part of efforts to save them from extinction. The northern corroboree frogs were bred at Sydney's Taronga Zoo before being released in Brindabella National Park, west of Canberra. It's estimated as few as 1200 of the frogs remain in the wild, with 544 bred in captivity before being released in the park. They weigh about three grams and are roughly the size of a paperclip, but the black and yellow amphibians play an important role in Australia's sub-alpine ecosystem. The calls of previously released frogs have been heard in the wild, proof they can thrive after leaving their captive-breeding environment. "This is the largest frog release within this population to date," Taronga Conservation Society Australia conservation officer Michael McFadden said. Future releases are planned to help bolster the survival of the species, which is only found between 750-1800m above sea level along mountain ranges in NSW and the ACT. The frogs were bred as part of NSW government program to prevent endangered species from going extinct and is among other "rewilding" efforts taking place around the nation. The process involves restoring habitats and re-introducing captive-bred threatened species to the wild in a bid to reduce biodiversity loss. Quolls previously extinct on mainland Australia have been re-introduced in feral-free sanctuary zones, as well as Tasmanian devils. Platypuses, bettongs and bilbies have also been reintroduced in recent years to areas where they previously become extinct.
Perth Now
03-07-2025
- Science
- Perth Now
Rare frogs hop back into wild to stop species croaking
More than 500 critically endangered frogs have been released in a national park as part of efforts to save them from extinction. The northern corroboree frogs were bred at Sydney's Taronga Zoo before being released in Brindabella National Park, west of Canberra. It's estimated as few as 1200 of the frogs remain in the wild, with 544 bred in captivity before being released in the park. They weigh about three grams and are roughly the size of a paperclip, but the black and yellow amphibians play an important role in Australia's sub-alpine ecosystem. The calls of previously released frogs have been heard in the wild, proof they can thrive after leaving their captive-breeding environment. "This is the largest frog release within this population to date," Taronga Conservation Society Australia conservation officer Michael McFadden said. Future releases are planned to help bolster the survival of the species, which is only found between 750-1800m above sea level along mountain ranges in NSW and the ACT. The frogs were bred as part of NSW government program to prevent endangered species from going extinct and is among other "rewilding" efforts taking place around the nation. The process involves restoring habitats and re-introducing captive-bred threatened species to the wild in a bid to reduce biodiversity loss. Quolls previously extinct on mainland Australia have been re-introduced in feral-free sanctuary zones, as well as Tasmanian devils. Platypuses, bettongs and bilbies have also been reintroduced in recent years to areas where they previously become extinct.
Japan Today
10-06-2025
- Science
- Japan Today
Coral frozen in time throws lifeline for Great Barrier Reef
Warming oceans cause coral to bleach, exposing them to disease and death by starvation By Laura CHUNG Rows of tanks filled with liquid nitrogen sit in temperature-controlled chambers at Sydney's Taronga zoo, cradling parts of the Great Barrier Reef's diverse and magnificent corals frozen in time. The world's largest store of cryogenically frozen coral is a frosty Noah's Ark for an ecosystem that scientists warn could be the first to disappear if climate change is not combatted fast enough. Trillions of cells from dozens of key coral species on the Great Barrier Reef (GBR) -— collected each year during mass spawning -- offer the chance to regenerate damaged and diminished corals now and into the future. "Essentially, a pause button has been pressed on their biological clocks," said Justine O'Brien, manager of conservation science at Taronga Conservation Society Australia. "I hope our collective efforts can help to retain the reef's beautiful diversity," she told AFP. Since the coral program began in 2011, Taronga's CryoDiversity Bank has been intruding annually on the GBR's spawning, when corals send eggs and sperm into the waters for breeding. Scientists collect the sperm and mix it with cryoprotectants, which remove water as the samples freeze, and protect internal cell structures. Eggs contain too much water and fat to be frozen without damage using current techniques, so for now cannot be similarly banked, but other cells are also harvested and frozen for research. The samples are placed into liquid nitrogen and stored at -196 degrees Celsius. Strict measures ensure the temperature never changes. "We can keep them alive indefinitely," O'Brien said. "You could thaw them out a few years from now, a few decades from now or hundreds of years from now and they will have retained the same fertilizing potential that existed when they were initially collected and frozen." So far the bank has 34 species of the approximately 400 kinds of hard corals on the GBR, prioritizing those most essential to reef structure and function, with plans to expand. In addition to reproduction, the samples can be used for research and record-keeping, helping track the effects of warming seas, overfishing and pollution that threaten coral reefs globally. Scientists forecast that at 1.5 Celsius of warming, some 70 to 90 percent of the world's coral reefs could disappear -- a disastrous prospect for people and the planet. Coral reefs support not just marine life but hundreds of millions of people living in coastal communities by providing food, protection from storms and livelihoods through fishing and tourism. Warming oceans cause coral to expel the algae that provides not just their characteristic color but also their food. Once bleached, they are exposed to disease and death by starvation. A global coral bleaching event has been unfolding since 2023, spreading to 84 percent of the world's reefs, across the Pacific, Indian and Atlantic oceans. Live coral cover has halved since the 1950s due to climate change and environmental damage, the International Coral Reef Initiative, a global conservation partnership, said this year. This week, nations will meet in France for a U.N. oceans summit where they will be under pressure to deliver action and much-needed funds to better protect the world's overexploited and polluted seas. But the third U.N. Ocean Conference may struggle to find global consensus and raise money given ongoing disagreements over deep-sea mining, plastic trash and overfishing. O'Brien warns the GBR is under pressure, despite the resilience it has already shown. "We know the frequency and severity of impacts that are now occurring are not giving the reef enough recovery time," she said. The cryobank, one of just a handful around the world, offers a glimmer of hope. Last year, Taronga and Australian Institute of Marine Science researchers successfully thawed frozen coral sperm to fertilize fresh eggs, producing viable coral larvae that were placed back onto the reef. It was a world-first for the GBR and preliminary surveys show the transplants have grown well. These efforts -- part of a broader program looking at everything from shading corals to transplanting more heat-tolerant varieties -- are a "small part of the solution to the global coral reef crisis," said WWF-Australia's head of oceans Richard Leck. But he warned that more needs to be done to ensure the long-term survival of coral. "Reefs are incredibly resilient and they do bounce back remarkably quickly after major disturbances," he told AFP. "There is certainly a window to get reefs through climate change, but it is clear that that window is closing." © 2025 AFP
IOL News
04-06-2025
- Science
- IOL News
Coral frozen in time throws lifeline for Great Barrier Reef
This photo taken on May 29, 2025 shows Justine O'Brien, manager of conservation science at Taronga Conservation Society Australia, placing coral sperm samples in a cryo rack, filled with liquid nitrogen at a laboratory in Sydney. Rows of tanks filled with liquid nitrogen sit in temperature-controlled chambers in Sydney's Taronga Zoo, cradling parts of the Great Barrier Reef's diverse and magnificent corals frozen in time. This is the world's largest store of cryogenically frozen coral, a frosty Noah's Ark for an ecosystem that scientists warn could be the first to disappear if climate change is not combatted fast enough. Rows of tanks filled with liquid nitrogen sit in temperature-controlled chambers at Sydney's Taronga zoo, cradling parts of the Great Barrier Reef's diverse and magnificent corals frozen in time. The world's largest store of cryogenically frozen coral is a frosty Noah's Ark for an ecosystem that scientists warn could be the first to disappear if climate change is not combatted fast enough. Trillions of cells from dozens of key coral species on the Great Barrier Reef (GBR) - collected each year during mass spawning - offer the chance to regenerate damaged and diminished corals now and into the future. "Essentially, a pause button has been pressed on their biological clocks," said Justine O'Brien, manager of conservation science at Taronga Conservation Society Australia. "I hope our collective efforts can help to retain the reef's beautiful diversity," she said. Since the coral programme began in 2011, Taronga's CryoDiversity Bank has been intruding annually on the GBR's spawning, when corals send eggs and sperm into the waters for breeding. Scientists collect the sperm and mix it with cryoprotectants, which remove water as the samples freeze, and protect internal cell structures. Eggs contain too much water and fat to be frozen without damage using current techniques, so for now cannot be similarly banked, but other cells are also harvested and frozen for research. The samples are placed into liquid nitrogen and stored at -196 degrees Celsius. Strict measures ensure the temperature never changes. "We can keep them alive indefinitely," O'Brien said. "You could thaw them out a few years from now, a few decades from now or hundreds of years from now and they will have retained the same fertilising potential that existed when they were initially collected and frozen." So far the bank has 34 species of the approximately 400 kinds of hard corals on the GBR, prioritising those most essential to reef structure and function, with plans to expand. In addition to reproduction, the samples can be used for research and record-keeping, helping track the effects of warming seas, overfishing and pollution that threaten coral reefs globally. Scientists forecast that at 1.5 Celsius of warming, some 70 to 90 percent of the world's coral reefs could disappear - a disastrous prospect for people and the planet. Coral reefs support not just marine life but hundreds of millions of people living in coastal communities by providing food, protection from storms and livelihoods through fishing and tourism. Warming oceans cause coral to expel the algae that provides not just their characteristic colour but also their food. Once bleached, they are exposed to disease and death by starvation. A global coral bleaching event has been unfolding since 2023, spreading to 84 percent of the world's reefs, across the Pacific, Indian and Atlantic oceans. Live coral cover has halved since the 1950s due to climate change and environmental damage, the International Coral Reef Initiative, a global conservation partnership, said this year. Next week, nations will meet in France for a UN oceans summit where they will be under pressure to deliver action and much-needed funds to better protect the world's overexploited and polluted seas. But the third UN Ocean Conference may struggle to find global consensus and raise money given ongoing disagreements over deep-sea mining, plastic trash and overfishing. O'Brien warns the GBR is under pressure, despite the resilience it has already shown. "We know the frequency and severity of impacts that are now occurring are not giving the reef enough recovery time," she said. The cryobank, one of just a handful around the world, offers a glimmer of hope. Last year, Taronga and Australian Institute of Marine Science researchers successfully thawed frozen coral sperm to fertilise fresh eggs, producing viable coral larvae that were placed back onto the reef. It was a world-first for the GBR and preliminary surveys show the transplants have grown well. These efforts - part of a broader programme looking at everything from shading corals to transplanting more heat-tolerant varieties - are a "small part of the solution to the global coral reef crisis," said WWF-Australia's head of oceans Richard Leck. But he warned that more needs to be done to ensure the long-term survival of coral. "Reefs are incredibly resilient and they do bounce back remarkably quickly after major disturbances," he said. "There is certainly a window to get reefs through climate change, but it is clear that that window is closing." | AFP
RTÉ News
04-06-2025
- Health
- RTÉ News
Coral frozen in time throws lifeline for Great Barrier Reef
Rows of tanks filled with liquid nitrogen sit in temperature-controlled chambers at Sydney's Taronga zoo, cradling parts of the Great Barrier Reef's diverse and magnificent corals frozen in time. The world's largest store of cryogenically frozen coral is a frosty Noah's Ark for an ecosystem that scientists warn could be the first to disappear if climate change is not combatted fast enough. Trillions of cells from dozens of key coral species on the Great Barrier Reef (GBR) - collected each year during mass spawning - offer the chance to regenerate damaged and diminished corals now and into the future. "Essentially, a pause button has been pressed on their biological clocks," said Justine O'Brien, manager of conservation science at Taronga Conservation Society Australia. "I hope our collective efforts can help to retain the reef's beautiful diversity," she said. Since the coral programme began in 2011, Taronga's CryoDiversity Bank has been intruding annually on the GBR's spawning, when corals send eggs and sperm into the waters for breeding. Scientists collect the sperm and mix it with cryoprotectants, which remove water as the samples freeze, and protect internal cell structures. Eggs contain too much water and fat to be frozen without damage using current techniques, so for now cannot be similarly banked, but other cells are also harvested and frozen for research. The samples are placed into liquid nitrogen and stored at -196 degrees Celsius (-320 Fahrenheit). Strict measures ensure the temperature never changes. "We can keep them alive indefinitely," O'Brien said. "You could thaw them out a few years from now, a few decades from now or hundreds of years from now and they will have retained the same fertilising potential that existed when they were initially collected and frozen." Coral disease, death So far the bank has 34 species of the approximately 400 kinds of hard corals on the GBR, prioritising those most essential to reef structure and function, with plans to expand. In addition to reproduction, the samples can be used for research and record-keeping, helping track the effects of warming seas, overfishing and pollution that threaten coral reefs globally. Scientists forecast that at 1.5 Celsius (34.7 Fahrenheit) of warming, some 70% to 90% of the world's coral reefs could disappear - a disastrous prospect for people and the planet. Coral reefs support not just marine life but hundreds of millions of people living in coastal communities by providing food, protection from storms and livelihoods through fishing and tourism. Warming oceans cause coral to expel the algae that provides not just their characteristic colour but also their food. Once bleached, they are exposed to disease and death by starvation. A global coral bleaching event has been unfolding since 2023, spreading to 84% of the world's reefs, across the Pacific, Indian and Atlantic oceans. Live coral cover has halved since the 1950s due to climate change and environmental damage, the International Coral Reef Initiative, a global conservation partnership, said this year. Next week, nations will meet in France for a UN oceans summit where they will be under pressure to deliver action and much-needed funds to better protect the world's overexploited and polluted seas. But the third UN Ocean Conference may struggle to find global consensus and raise money given ongoing disagreements over deep-sea mining, plastic trash and overfishing. 'Window closing' O'Brien warns the GBR is under pressure, despite the resilience it has already shown. "We know the frequency and severity of impacts that are now occurring are not giving the reef enough recovery time," she said. The cryobank, one of just a handful around the world, offers a glimmer of hope. Last year, Taronga and Australian Institute of Marine Science researchers successfully thawed frozen coral sperm to fertilise fresh eggs, producing viable coral larvae that were placed back onto the reef. It was a world-first for the GBR and preliminary surveys show the transplants have grown well. These efforts - part of a broader programme looking at everything from shading corals to transplanting more heat-tolerant varieties - are a "small part of the solution to the global coral reef crisis," said WWF-Australia's head of oceans Richard Leck. But he warned that more needs to be done to ensure the long-term survival of coral. "Reefs are incredibly resilient and they do bounce back remarkably quickly after major disturbances," he said.
