Sentences with phrase «coral bleach»

But it's true that we did see some coral bleach on our last trip although it was not major where we were.
However, to be 100 % honest — and it's not even related to the coral bleach — there are other places in the word where you can see amazing corals.
In 2005, for instance, the quick succession of Hurricane Katrina and Hurricane Rita cooled the waters below as they passed over Florida, sparing the Florida Keys from a serious coral bleaching event affecting the Caribbean.
Higher water temperatures from climate change are leading to «coral bleaching,» which makes coral vulnerable to disease and death.
Their study, published in the journal Limnology and Oceanography, documents a coral bleaching event in the Caribbean in minute detail and sheds light on how it changed a coral's community of algae — a change that could have long - term consequences for coral health, as bleaching is predicted to occur more frequently in the future.
They've studied how coral bleaching caused by the 1998 El Niño affected communities in the western Indian Ocean.
Cinner and McClanahan have found that different places felt different effects of coral bleaching based on how much people depended on fish and tourism for a living and how flexible the local people were.
«Close - up of coral bleaching event.»
Coral bleaching is a response to stressors, such as higher temperatures.
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.
These high - resolution projections, based on global climate models, predict when and where annual coral bleaching will occur.
When sea temperatures rise, the algae that give coral its bright colours leave their host, causing it to look white, hence the term «coral bleaching».
While the threat of coral bleaching as a result of climate change poses a serious risk to the future of coral reefs world wide, new research has found that some baby corals may be able to cope with the negative effects of ocean acidification.
Coral bleaching is the most immediate threat to reefs from climate change; it's caused when ocean temperatures become warmer than normal maximum summer temperatures, and can lead to widespread coral death.
«Coral bleaching «lifeboat» could be just beneath the surface: UN report finds part of the ecosystem may survive in barely known deeper environments, known as mesophotic coral ecosystems (MCEs).»
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 event.
Those seeking a «last chance experience» were also more likely to be concerned about the health of the reef — in particular coral bleaching and climate change, both of which, incidentally, would have an effect on a tourist's experience of the site.
New monitoring efforts may come in particularly useful in the coming months, when the National Oceanic and Atmospheric Administration says there is a risk of major coral bleaching in the tropical Pacific and Indian Oceans through May, an event that may rival severe bleaching that occurred in 1998 and 2010.
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).
Across the globe, the El Niño has also begun a mass coral bleaching.
These heat waves can cause coral bleaching (SN: 02/03/18, p. 16)-- corals eject the symbiotic algae known as zooxanthellae that provide corals with both nutrients and color.
The effects of climate change, such as coral bleaching, become slow - motion disasters, with knock - on effects for years
The Great Barrier Reef is experiencing a major coral bleaching event right now.
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.
Sea - level rise and coral bleaching often dominate discussions about how climate change affects the ocean, but a host of more subtle — and harder to research — trends also play a role in reshaping the world's marine ecosystems.
Charlie had seen his first patch of coral bleaching off the Great Barrier Reef's Palm Island in the early 1980s, a tiny clump of white skeleton that he photographed as a curio.
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.
Using a high - resolution molecular screening technique called Real Time - PCR, the researchers confirmed that the partnership between Symbiodinium D — a symbiotic algae associated with resistance to coral bleaching — and Caribbean corals is more common than had been supposed.
Global warming, coupled with an intense El Nino, continues to make this the longest and most widespread coral bleaching event on record.
Dr Kennedy says previous studies have shown that if Orbicella annularis contains just a small amount of Symbiodinium D it can sometimes respond better to stress events — such as heatwaves — and is more likely to avoid coral bleaching.
This third global coral bleaching event began in mid-2014 is ongoing.
And this coral bleaching is a global phenomenon?
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 ecosystems.
Now a Northwestern University research team is the first to provide a quantitative «global index» detailing which of the world's coral species are most susceptible to coral bleaching and most likely to die.
«Coral bleaching threatens the diversity of reef fish.»
As a result, the livelihoods of 500 million people and income worth more than $ 30 billion are at risk from coral bleaching.
The coral bleaching response index was published today (April 13, 2016) as an Early View article by the journal Global Change Biology.
The global index, representing close to half the world's corals from 316 sites, is an impressive feat of data science: It emerged from a meta - analysis of all available historical records on coral bleaching from 1982 through 2006 — the «sum of human knowledge on species - specific bleaching during this period,» according to Swain.
This is a big El Niño event, comparable to the one in 1998, which so far is the biggest global coral bleaching event.
The world currently is experiencing the longest global coral bleaching event ever recorded, with the Great Barrier Reef and U.S. reefs among those suffering.
The paper «Mass coral bleaching causes biotic homogenization of reef fish assemblages» is published in Global Change Biology.
An unexpected coral bleaching event in the South China Sea shows that reefs can heat up substantially more than the surrounding ocean
«Millions of coastal people in the tropics have been affected by the global coral bleaching event that unfolded over the previous two years.
Coral bleaching happens when sea temperatures rise, causing the breakdown of the symbiosis between coral and their zooxanthellae (the microscopic plants which gives coral most of its colour), which can be fatal for the coral.
The novel algorithm could help assess and predict the future of coral bleaching events by better understanding the coral's symbiotic partner: algae.
The process of coral bleaching in the dark at elevated temperatures — and perhaps also in response to other stress conditions — could be a potential advantage to corals.
The need to better understand coral's partnership with algae is particularly dire as the world is currently experiencing the longest global coral bleaching event ever recorded.
Studying coral bleaching can thus help us predict the threats reefs will face in the future.
a b c d e f g h i j k l m n o p q r s t u v w x y z