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#coral bleaching
heartnosekid · 1 month
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clownfish swimming through bleached anemones | jonoallenphotography on ig
if you have a moment and are mentally able, please read the text accompanying the original instagram post, located at the source link above, and this short article by The National Oceanic and Atmospheric Administration. if not, please just share it around. it's true this video is strikingly beautiful, but the truth behind it is, in my opinion, necessary for everyone to know.
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averysillygoose · 7 months
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dream job 🌱🪵🌎🌈
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reasonsforhope · 1 year
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“The northern and central Great Barrier Reef have recorded their highest amount of coral cover since the Australian Institute of Marine Science began monitoring 36 years ago.
Published [in August 2022], the group’s Annual Summary Report on Coral Reef Condition for 2021/22 shows another year of increased coral cover across much of the Reef—with increases of 7-9 percent in several areas.
In the 87 representative reefs surveyed between August 2021 and May 2022 with a Long-Term Monitoring Program, average hard coral cover in the region north of Cooktown increased to 36% (from 27% in 2021) and to 33% in the central Great Barrier Reef (from 26% in 2021)...
AIMS CEO Dr. Paul Hardisty said the results in the north and central regions were a sign the Reef can recover, but warns about the increased frequency of coral bleaching events, which are a coral’s response to stressful conditions such as heat. A condition from which they still can survive...
“The 2020 and 2022 bleaching events, while extensive, didn’t reach the intensity of the 2016 and 2017 events and, as a result, we have seen less mortality,” he said in a release.
These latest results demonstrate the Reef can still recover in periods free of intense disturbances.” -via Good News Network, 8/4/22
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greentechspot · 8 months
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Underwater Climate Refuges: Designing Technological Sanctuaries to Protect Marine Biodiversity from Warming
As our oceans face unprecedented warming due to climate change, the urgency to protect marine biodiversity has reached a critical point. With ecosystems and species at risk, innovative solutions are emerging to preserve our oceans’ richness for future generations. Among these transformative ideas are underwater climate refuges—cutting-edge technological sanctuaries designed to shield marine life…
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sixty-silver-wishes · 11 months
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Mermay Day 8: Dystopian
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Today’s Mermay is based around the phenomenon of coral bleaching, where rising temperatures and other stressful factors expel zooxanthellae algae from corals, causing them to turn white and leaving them vulnerable to starvation, destroying a vital part of the ocean’s ecosystems. Climate change is often pointed to as a cause of rapid coral bleaching, with mass bleaching events impacting enormous percentages of coral environments, including Australia’s Great Barrier Reef.
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kp777 · 11 months
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hennethgalad · 2 months
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"Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms."
mainly plankton in the sea
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climate change is killing the plankton. see coral bleaching, the scientists are in tears.
ask your doctor about the importance of blood oxygen levels.
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8chels8 · 8 months
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global warming !!
sometimes, the world just disappoints me... we genuinely need to act on this issue, now.
the only thing on my bucket list is to see the great barrier reef before it bleaches and dies. although, how am i supposed to achieve that when everyone is neglecting the rising temperature of the water; the world?
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jcmarchi · 3 months
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Coral reefs in peril from record-breaking ocean heat - Technology Org
New Post has been published on https://thedigitalinsider.com/coral-reefs-in-peril-from-record-breaking-ocean-heat-technology-org/
Coral reefs in peril from record-breaking ocean heat - Technology Org
Record breaking marine heatwaves will cause devastating mass coral bleaching worldwide in the next few years, according to a University of Queensland coral reef scientist.
Corals – illustrative photo. Image credit: Pixabay (Free Pixabay license)
The alarming finding is the result of an international study led by UQ’s Professor Ove Hoegh-Guldberg of UQ’s School of the Environment, who is currently attending the COP28 climate change meetings in Dubai.
“We were shocked to find heat stress conditions started as much as 12 weeks ahead of previously recorded peaks and were sustained for much longer in the eastern tropical Pacific and wider Caribbean,” Professor Hoegh-Guldberg said.
“Historical data suggests the current marine heatwaves will likely be the precursor to a global mass coral bleaching and mortality event over the next 12 to 24 months, as the El Niño phase of El Niño-Southern Oscillation or ENSO continues.
“Across July 2023, Earth experienced its warmest days on record since 1910, as well as the warmest month ever recorded for sea surface temperatures.
“This puts immense pressure on vital but fragile tropical ecosystems, such as coral reefs, mangrove forests, and seagrass meadows.
“For example, a coral reef in the Florida Keys called Newfound Harbor Key accumulated heat stress almost 3 times the previous record and it occurred 6 weeks ahead of previous peaks.”
Professor Hoegh-Guldberg said the findings come at a critical point in protecting global biodiversity, with commitment to climate change mitigation slipping in many nations.
“The latest environmental information indicates that we’re well off-track when it comes to keeping global surface temperatures from reaching a very dangerous condition by mid to late this century,” he said.
“Frankly, we’re hurtling in the opposite direction.
“Compounding this is the fact these devastating impacts appear to be rolling into a vast record-breaking global event.”
Professor Hoegh-Guldberg said that without serious and swift action, the persistence of coral reefs beyond the next few decades is in serious jeopardy.
“Our study shows that ENSO is a major determinant of the fate of the world’s coral reefs,” he said.
“Rising sea temperatures, coupled with other stressors such as ocean acidification and pollution, have severely weakened their resilience.
“This puts coral reefs and a quarter of the ocean’s biodiversity at serious risk of annihilation.”
Professor Hoegh-Guldberg said efforts to introduce of heat-tolerance genes into the natural coral population have shown promise, but the reality of scaling these efforts remains logistically challenging.
“Given the complex and interconnected nature of marine ecosystems such as coral reefs, a comprehensive approach is necessary for mitigating the impacts of changing oceanic conditions,” he said.
“The importance of reducing our emissions is underscored in our findings, where massive changes to oceanic warming are set to destroy coral reefs and many other ecosystems.
“With this in mind, there are extremely tough discussions underway at the COP28 climate meetings.”
This research is published in Science.
Source: The University of Queensland
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dakotapuma · 6 months
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While we know we cannot save every coral; we are focusing on individual corals that represent unique genetic lines that are thought only to exist in certain National Parks. —Ilsa Kuffner, a USGS research marine biologist
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mossandfog · 8 months
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Waters Around Florida Are So Hot, Scientists Are Removing Coral to Save Them
With the recent, massive heatwaves around the northern hemisphere, there’s more than just human suffering when the temperatures get that hot. In southern Florida, the ocean temperatures have reached a shocking 101º F (38.3 C) or higher, the highest recorded. In addition to feeling like a hot tub on a hot day, the extreme ocean temperatures are wreaking havoc on coral reefs, with many of them…
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hannscha · 6 months
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I did some research, and the oceans main problems are pollution, acidification, overfishing, and, of course also global warming. All of the above cause animals and plants to die. For example, 60% of the Great Barrier Reefs corals at Australias coastline has bleached due to global warming in 2022, most of them died soon after bleaching. This causes a lot of animals to die, and reduces the natural biodiversity, as a consequence it also affects a human beings life in many ways. Just something to think about.😭🐠🐢
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This is what they are supposed to look like.
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And this is what they look like after bleaching.
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environmentalwatch · 8 months
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Ocean Temperatures Soar in Florida
Ocean temperatures are rising in Florida, threatening coral, contributing to humidity, and keeping the air from cooling at night. According to the World Meteorological Organization, almost every day last week unofficially broke records for high temperatures. Japan reported that the global average temperature on Friday was half a degree (F) warmer than its past record hottest day, which was in…
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reasonsforhope · 1 year
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“As remote as they were beautiful, the coral reefs around the 5 volcano tips making up the Southern Line Islands dazzled National Geographic explorers in 2009 during a visit.
Remarking that they re-painted the image of what a pristine coral reef looks like—bursting with color and life—the team of the Pristine Seas Expedition had been crushed when a record-warming even in 2015 called El Niño caused mass coral die offs.
Then a return in 2021 revealed a remarkable scene—bright healthy corals teeming with life as far down as 100 feet off the island slopes. After record numbers of coral deaths, a team member estimated their populations averaged around 43 million to 53 million coral colonies per square mile.
The Southern Line Islands belong to the Pacific island nation of Kiribati, and Enric Sala, a marine biologist and member of Pristine Seas, detailed that it took longer to reach them by plane and boat than it took the astronauts of the Apollo missions to land on the Moon...
“The reef was covered by light-blue corals that looked like giant roses—a garden of Montipora aequituberculata stretching as far as I could see,” says Sala.
Since the Southern Line Islands are so remote, no one was keeping an eye on how the corals were able to regrow so significantly, but Sala has an idea. Since most of the montipora were the same size, it’s possible that one or two massive coral spawning events, where they reproduce and launch their eggs out into the sea before the larvae rain back down on the reef, are enough to repopulate large areas of dead corals.
Its resilience earned it the moniker of a “super reef” among the crew...
Kiribati’s government has ensured that these seas, which have never seen large-scale commercial fishing, will never see it, and now make up the Southern Line Islands Marine Protected Area (SLIMPA).” -Good News Network, 12/7/22
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dr-otter · 8 months
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Y'all, the Florida reefs are nearly 100% bleached or dead right now. Water temperatures are hitting the mid to upper 90s, as high as 101F in Miami. This is bad. We are seeing a combination of El Nino conditions on top of warming ocean surface temperatures due to climate change creating a marine heat wave.
Nurseries still have live coral, and deeper water reefs (where the water is cooler and UV is less) are in better shape. Many people are working hard to preserve these reefs, but this is bailing water in a sinking boat. We NEED to reduce carbon emissions; this is what stops the boat from sinking. It is NOT too late to save corals and support recovery but it is time to stop screwing around and do it.
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cryskir · 2 years
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A little animation for a scicomm assignment about coral bleaching in the GBR
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