Heat-tolerant corals found across Great Barrier Reef

I thought, the Great Barrier Reef was long bleached and dead due to Global Warming/Climate change? Caution: irony.

Nature is a lot more resilient and capable to adopt than all this daily alarmism and hysteria wants us to believe!

"Australian scientists studying coral have identified heat-tolerant individuals at sites spanning the entire Great Barrier Reef. This good news suggests that some corals already have naturally occurring variation that could help them adapt to a warming climate. ...

Australian researchers measured the bleaching thresholds of more than 500 colonies of table coral at 17 different reefs across the Great Barrier Reef. ...

On the Great Barrier Reef alone, there have been five mass coral bleaching events since 2016. Recently researchers have calculated that the Great Barrier Reef has sustained the highest ocean heat in four centuries [???]. ..."

From the abstract:

"Reef-building coral populations face unprecedented threats from climate warming. Standing variation in heat tolerance is crucial for evolutionary processes necessary for corals to persist. Yet, the spatial distribution of heat-tolerant corals and the underlying factors that determine heat tolerance are poorly understood from individual to ecosystem scales. Here, we show extensive variation in the heat tolerance of a foundational coral species complex across the Great Barrier Reef. Thermal thresholds of 569 individuals differed by up to 7.3 °C across scales from meters to >1250 km. Variation in thresholds among reefs was consistent with local adaptation and acclimatization to historical and recent thermal history. However, variation within reefs was sometimes greater than among reefs and largely unexplained by environmental predictors, putative host species, or symbiont communities. This indicates that within-reef heat tolerance differences may be informed primarily by other factors, such as adaptive genomic variation. We anticipate our findings will inform conservation and restoration actions, including targeting individuals for selective breeding of enhanced heat tolerance."

Heat-tolerant corals found across Great Barrier Reef

How remarkable diversity in heat tolerance can help protect coral reefs (original news release) "New research out of Southern Cross University has found previously undocumented variation in coral heat tolerance on the Great Barrier Reef, giving hope that corals’ own genetic resources may hold the key for us to help in its recovery and adaptation."

Heat tolerance varies considerably within a reef-building coral species on the Great Barrier Reef (open access; I presume this is the research article mentioned in the article above, but without link)

Fig. 1: Assessment of coral heat tolerance traits using acute stress experiments.

Fig. 2: Variation in heat tolerance trait metrics in Acropora hyacinthus colonies across sites on the Great Barrier Reef organized from north to south

Must humans cull the starfish so coral reefs may live?

How anthropogenic is that? So the starfish killed the coral reef not climate change? Caution: satire

Human intervention to save the Great Barrier Reef?

"... starfish ... has been voraciously snacking on coral that make up Australia’s Great Barrier Reef. Since the 1960s, scientists have noticed an uptick in the number of coral-eating crown-of-thorns starfish, and outbreaks of these spiny beasts have decimated entire reefs. Now, a new study suggests a controversial stop-gap solution—culling these starfish—is working.

In regions where starfish were culled, populations of the predators were much smaller, and coral cover also increased by up to 44% in six years.  ...

the researchers behind the new study are exploring ways of controlling starfish outbreaks that require less human intervention, such as boosting the species’ natural predators.  ..."

ScienceAdvisor

Intellectually ‘bankrupt’ scientists are running down the Great Barrier Reef

Recommendable! 

Great Barrier Reef’s record coral cover isn’t the story scientists ‘want to talk about’

Very recommendable!

There are lies, damned lies, and statistics in support of the Global Warming hoax and the Climate Change religion!

Deep beneath the high seas, researchers find rich coral oases

Very recommendable!

Remember all that recent hyper alarmism about coral reefs dying? We still know very little about the oceans and the deep sea! Global Warming is a hoax and Climate Change is a medieval superstition!

"After combing through more than half a million observations of reef-building corals, the team identified 116 reefs located in the high seas. Most of these corals live between 200 and 1200 meters beneath the surface, the researchers found. But a handful are found more than 2 kilometers deep. And there are likely many more high seas corals still to be found, the authors note, as surveys have typically prioritized corals close to shore. "

Deep beneath the high seas, researchers find rich coral oases | Science | AAAS

Climate Alarmists Are Lying About Coral Reefs!

Very recommendable! So is it sunscreen and coastal water pollution that contributed to partial bleaching? Is bleaching not naturally reversible?

Reef Building Corals Are Not Dying

Another Global Warming Hoax exposed! Like the polar bear, coral reefs became another hyped story spread environmentalist fanatics!

“Reef-building corals can make unexpected recoveries from climate change-induced destruction. It turns out that some corals only look dead when exposed to unusually warm water. Instead, the coral’s polyps shrink and retreat into their hard skeleton, making the reef appear dead, before recolonising the skeleton when conditions are better.”

Article:

Some corals ‘killed’ by climate change are now returning to life Some corals ‘killed’ by climate change are now returning to life (10/9/2019)