Sentences with phrase «by coral bleaching»

24 March, 2017 — Australia's Great Barrier Reef and reefs in the Maldives have been dangerously weakened by coral bleaching caused by global warming and El Niño events.

While some areas of the Great Barrier Reef have been affected by coral bleaching, or other natural events such as cyclones, others have not.

Right now, 93 % of the reef is affected by coral bleaching due to environmental changes like the rising temperature of the ocean water.

Cultural values of many tropical island communities (e.g., religious sites and traditional uses of marine resources) depend upon healthy coral reef ecosystems and can be adversely affected by coral bleaching.

Observing the reefs in Maui, which have been greatly affected by coral bleaching due to climate change, scientists said the massive bleaching have resulted to the reef's vulnerability to algae colonization.

The reefs around the island have been ravaged by coral bleaching caused by climate change.

Extensive aerial surveys and dives have revealed that 93 percent of the world's largest reef has been devastated by coral bleaching.

Not exact matches

A full half of 3,863 coral reefs in the magnificent ecosystem were wiped out by catastrophic bleaching events caused by searing heat waves in 2016 and 2017.

Carbon dioxide emitted into the atmosphere is causing the water to get so warm and acidic that almost every place where coral exists is expected to see bleaching by 2050.

At the University of Hawaii, researchers are trying to breed corals resilient to bleaching by studying specimens that have bounced back from stresses that killed other corals.

In the Keys, many species of coral have been practically wiped out by bleaching and other pressures.

Almost a quarter of the coral in the 132,974 square foot wonderland of marine life is dead, and 93 % has been touched by «bleaching,» a result of rising ocean temperatures.

Not only do warmer waters cause bleaching of the living coral polyps that make up the mass, by leading them to expel the algae that give them color, but they have also led to an explosion in the numbers of a creature called the crown - of - thorns starfish.

Here's more: Coral reefs the world over are dying as warmer sea water bleaches them to death — by some estimates, this whole amazing ecosystem, this whole lovely corner of God's brain, may be extinct by mid-century.

They've studied how coral bleaching caused by the 1998 El Niño affected communities in the western Indian Ocean.

«We were able to follow this coral at a very high precision and document how diverse assemblages of symbiotic algae are differently affected by the bleaching phenomenon,» Kemp said.

New climate model projections of the world's coral reefs reveal which reefs will be hit first by annual coral bleaching, an event that poses the gravest threat to one of the Earth's most important ecosystems.

Even if emission reductions exceed pledges made by countries to date under the Paris Agreement more than three quarters of the world's coral reefs will bleach every year before 2070.

If emission reductions exceed pledges made by countries to date under the Paris Agreement, coral reefs would have another 11 years, on average, to adapt to warming seas before they are hit by annual bleaching.

«By carefully managing reefs with conditions that are more likely to recover from climate - induced bleaching, we give them the best possible chance of surviving over the long term, while reduction of local pressures that damage corals and diminish water quality will help to increase the proportion of reefs that can bounce back.»

Coral bleaching has affected virtually the entire Great Barrier Reef and many other coral reef systems globally, a result of the continuing rise in global temperatures and exacerbated by the summer's major El Niño eCoral bleaching has affected virtually the entire Great Barrier Reef and many other coral reef systems globally, a result of the continuing rise in global temperatures and exacerbated by the summer's major El Niño ecoral reef systems globally, a result of the continuing rise in global temperatures and exacerbated by the summer's major El Niño event.

A recent study, published January in Science, found that severe coral bleaching events — which are generally triggered by high ocean temperatures — have already increased in frequency nearly fivefold since the early 1980s (Climatewire, Jan. 5).

Worldwide, most reefs were «substantially degraded before 1900,» they report, long before recent episodes of coral bleaching caused by climate change or other factors began.

A new study by a Florida State University biologist shows that bleaching events brought on by rising sea temperatures are having a detrimental long - term impact on coral.

Biologists have shown that bleaching events brought on by rising sea temperatures are having a detrimental long - term impact on coral.

This newest threat follows on the heels of overfishing, sediment deposition, nitrate pollution in some areas, coral bleaching caused by global warming, and increasing ocean acidity caused by carbon emissions.

All of the corals bleached by the end of the fourth day.

His discoveries have also revealed how warming ocean temperatures and acidification of ocean water caused by climate change lead to coral bleaching and death.

Based on a massive amount of historical data, the index can be used to compare the bleaching responses of corals throughout the world and to predict which corals may be most affected by future bleaching events.

New international research led by PhD student Laura Richardson of the ARC Centre of Excellence for Coral Reef Studies at James Cook University reveals that coral bleaching events not only whitewash corals, but can also reduce the variety of fish occupying these highly - valued ecosysCoral Reef Studies at James Cook University reveals that coral bleaching events not only whitewash corals, but can also reduce the variety of fish occupying these highly - valued ecosyscoral bleaching events not only whitewash corals, but can also reduce the variety of fish occupying these highly - valued ecosystems.

The quantity and types of coral and fish species were surveyed before, during and after the 2016 mass bleaching event caused by a global heatwave.

The coral bleaching response index was published today (April 13, 2016) as an Early View article by the journal Global Change Biology.

By the end of this year, NOAA predicts that nearly all U.S. coral reefs will have been subject to stressful bleaching conditions.

«Fish assemblages are significantly impacted by loss of coral cover as a result of bleaching events, and some fishes are more sensitive than others,» said co-author Prof Nick Graham of Lancaster University.

A 2016 aerial survey of the northern Great Barrier Reef lead by Professor Terry Hughes from JCU's Center of Excellence for Coral Reef Studies showed that 90 per cent of reefs in some of these areas were severely bleached.

«Millions of coastal people in the tropics have been affected by the global coral bleaching event that unfolded over the previous two years.

But by 2016, all had been hit by at least one bleaching event, and all but six had suffered a severe event — defined as affecting more than 30 percent of corals in an area.

The novel algorithm could help assess and predict the future of coral bleaching events by better understanding the coral's symbiotic partner: algae.

«Unfortunately the fact that Kimberley corals are not immune to bleaching suggests that corals living in naturally extreme temperature environments are just as threatened by climate change as corals elsewhere,» says Dr Schoepf.

Despite their importance, corals face a range of grave risks today, from bleaching triggered by increasing seawater temperatures, to sediment loads caused by terrestrial erosion from land development, to predation by crown - of - thorns starfish.

Traditionally, scientists have been studying recovery in terms of decades — but climate projections suggest that, on average, severe coral bleaching will become a yearly occurrence by mid-century under «business as usual» and for some reefs this will be far sooner.

Some estimates predict that 70 percent of the world's coral reefs will be gone by 2050, and bleaching events — which occur when reefs lose the algae they needs for survival — have already killed off large percentages of coral populations around the world.

The second phase, in 1998, saw many of the remaining tree - like corals being wiped out during a massive bleaching event, probably driven by global warming.

The coral deaths followed intense coral bleaching, which was caused by global warming and influenced by the whims of the weather.

This knowledge will help managers increase the likelihood of coral surviving bleaching events in the future by reducing the impact of other stressors, such as pollution and over-use, at both local and regional scales.»

April 27, 2006, Coral Withstands Bleaching by Feeding, by David Biello.

Eakin says that by watching the temperature of the water and looking at how much coral actually dies off — and which species are most affected — researchers will get a sense of whether or not corals are adapting to the increased frequency of bleaching.

Suggestions to read in today's digest are: a review about microbiological methods applied in studies following the deepwater horizon oil spill by S.Zhang, a paper by W. Pootakham on dynamics of coral ‐ associated microbiomes during a thermal bleaching event and a paper by X. Jiang on a novel auxotrophic interaction among soil microbes.

In general, coral species that are more resistant to bleaching can be characterized by massive growth forms, thick or less - integrated tissues and slow growth rates.

Chief among them was coral bleaching, caused by climate change.