Coral bleaching causing ’unnecessary’ fish fights, threatening their survival
1 year, 11 months ago

Coral bleaching causing ’unnecessary’ fish fights, threatening their survival

Live Mint  

Fish that have lost food due to mass coral bleaching are getting into more unnecessary fights, causing them to expend precious energy and potentially threatening their survival, according to new research released on Wednesday. With the future of the world's coral reefs threatened by climate change, a team of researchers studied how a mass bleaching event affected 38 species of butterflyfish. The colourfully patterned reef fish are the first to feel the effect of bleaching because they eat coral, so their "food source is hugely diminished really quickly", said Sally Keith, a marine ecologist at Britain's Lancaster University. But when one of history's worst global bleaching events struck in 2016, it offered "the perfect opportunity" to study how it affected the fish's behaviour, Keith told AFP.

Fish Keith Bleaching Coral Coral Bleaching  bleaching  species  threatening  team  researchers  fish  unnecessary  coral  causing  food  reefs  survival  keith  fights  mass

History of this topic

“Absolutely devastating”: Climate change is pushing coral reefs to extinction, experts warn
1 month ago

“Absolutely devastating”: Climate change is pushing coral reefs to extinction, experts warn

Salon  

The Chagos Archipelago is one of the most remote places on Earth. “Currently coral reefs face many threats, including biodiversity loss, water quality, climate change, disease, predation, coastal development, litter, marine traffic and pollution,” Alliji explained. “The ocean has no boundaries and therefore a collaborative approach is required to ensure coral survival and guarantee their future.” We need your help …

Great Barrier Reef hit by more bleaching
1 month ago

Great Barrier Reef hit by more bleaching

ABC  

Rachel Mealey: Last summer's extreme heat coupled with two cyclones in far north Queensland led to a mass coral bleaching event on the Great Barrier Reef. Michael Slezak: Yeah, so look, a complete picture of the reef and which parts are worst hit is not quite available from the survey, but from the reefs that they have looked at, it's …

Fourth mass coral bleaching prompts UN emergency session at Colombia biodiversity summit
1 month, 3 weeks ago

Fourth mass coral bleaching prompts UN emergency session at Colombia biodiversity summit

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Please enter a valid email address Please enter a valid email address SIGN UP I would like to be emailed about offers, events and updates from The Independent. Coral reefs are vital ecosystems …

Global coral bleaching event biggest on record: U.S. agency
2 months ago

Global coral bleaching event biggest on record: U.S. agency

Raw Story  

A global coral bleaching event that began last year has quickly grown to the largest on record, according to a U.S. agency, with the impacted reef area continuing to grow. From the beginning of 2023 through October 10, 2024, "roughly 77 percent of the world's reef area has experienced bleaching-level heat stress," Derek Manzello of the National Oceanic and Atmospheric …

How coral bleaching threatens the fragile ecology of the Lakshadweep Islands
3 months, 2 weeks ago

How coral bleaching threatens the fragile ecology of the Lakshadweep Islands

Hindustan Times  

A team of marine scientists from the Kochi-based Kerala University of Fisheries and Ocean Studies have conducted a two-month expedition and found alarming evidence of widespread coral reef bleaching off the Lakshadweep group of islands. Despite the ongoing marine heat waves, coral bleaching was only observed in May this year, prompting experts from KUFOS to conduct a detailed field study. …

Great Barrier Reef endangered by hottest oceans in 400 years, study finds
4 months, 2 weeks ago

Great Barrier Reef endangered by hottest oceans in 400 years, study finds

Al Jazeera  

Researchers say the world is losing ‘one of our icons’ as human activity fuels temperature increases. Ocean temperatures in the Great Barrier Reef have hit their highest level in 400 years over the past decade, researchers say, warning that the largest living ecosystem on Earth likely will not survive if planetary warming is not stopped. Ocean temperatures around the reef …

What we do in the shallows: Inside the mad dash to save coral reefs around the world
5 months, 2 weeks ago

What we do in the shallows: Inside the mad dash to save coral reefs around the world

Hindustan Times  

Some have compared it to the crackling of a campfire, or the sizzling of bacon in a pan. “These species don’t create the same complex habitats that reef-building corals do, and so they don’t support all the biodiversity and ecosystem services that a healthy reef provides.” Reefs may shift into deeper waters, adds Alexander Neufeld, science programme manager at the …

Global coral bleaching crisis: Indian Ocean reefs severely affected by record heat, says NOAA
6 months ago

Global coral bleaching crisis: Indian Ocean reefs severely affected by record heat, says NOAA

Hindustan Times  

Last month, the United States National Oceanic and Atmospheric Administration announced that the world’s coral reefs are experiencing a global mass bleaching event due to the combined effects of climate change and an El Niño climate pattern, which have pushed ocean temperatures to record highs. NOAA Coral Reef Watch has predicted all large-scale bleaching events since the late 1990s by …

Over 60% of world's coral reefs likely bleached in just the past year
7 months, 1 week ago

Over 60% of world's coral reefs likely bleached in just the past year

India Today  

In a dire warning about the escalating threat to the world's coral reefs, the US-based National Oceanic and Atmospheric Administration has revealed that nearly two-thirds of these vital marine ecosystems have experienced heat stress severe enough to trigger bleaching over the past year. "I am very worried about the state of the world's coral reefs," said Derek Manzello, coordinator of …

Experts say coral reef bleaching near record level globally because of ‘crazy’ ocean heat
7 months, 1 week ago

Experts say coral reef bleaching near record level globally because of ‘crazy’ ocean heat

Associated Press  

Ocean temperatures that have gone “crazy haywire” hot, especially in the Atlantic, are close to making the current global coral bleaching event the worst in history. That’s nearing the record of 65.7% in 2017, when from 2009 to 2017 about one-seventh of the world’s coral died, said Derek Manzello, coordinator of the National Oceanic and Atmospheric Administration Coral Reef Watch …

Lakshadweep in ecological crisis: Researchers find widespread bleaching of coral reefs due to marine heatwaves
7 months, 2 weeks ago

Lakshadweep in ecological crisis: Researchers find widespread bleaching of coral reefs due to marine heatwaves

India TV News  

Kochi: In a disturbing development, researchers have found that marine heatwaves are causing widespread bleaching of coral reefs in the Lakshadweep Sea, causing them to lose their colours due to stress, according to a study by the ICAR-Central Marine Fisheries Research Institute. According to the National Oceanic and Atmospheric Administration, this level of Degree Heating Week poses a substantial risk …

Australia’s Great Barrier Reef suffers worst bleaching on record
8 months, 1 week ago

Australia’s Great Barrier Reef suffers worst bleaching on record

Al Jazeera  

The 2,300km reef is in its fifth mass bleaching event since 2016 with aerial surveys showing the scale of damage. Australia’s Great Barrier Reef, which stretches for some 2,300km off the country’s northeastern coast, is suffering its worst bleaching event on record. “This prolonged heat exposure has caused mass bleaching of coral reef communities observed within all three regions of …

Global coral bleaching event called by US climate agency for the fourth time in history after year of extreme ocean heat
8 months, 1 week ago

Global coral bleaching event called by US climate agency for the fourth time in history after year of extreme ocean heat

ABC  

The Ribbon Reef, on the northern side of the Great Barrier Reef, before coral bleaching occurred. Short window, massive change From above, aerial surveys of the Great Barrier Reef revealed a "mass coral bleaching event" was unfolding across the world-heritage site. This photo of Ribbon Reef, on the northern side of the Great Barrier Reef, was taken before coral bleaching …

Scientists say coral reefs around the world are experiencing mass bleaching in warming oceans
8 months, 1 week ago

Scientists say coral reefs around the world are experiencing mass bleaching in warming oceans

Associated Press  

Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change. Coral reef bleaching across at least 53 countries, territories or local economies has been confirmed from February 2023 to now, scientists from the National Oceanic and Atmospheric Administration and International Coral Reef …

Coral reefs undergoing fourth global bleaching event, say US scientists
8 months, 1 week ago

Coral reefs undergoing fourth global bleaching event, say US scientists

India Today  

Many of the world's colourful coral reefs along coastlines from Australia to Kenya to Mexico have turned white in what scientists said is the fourth global bleaching event in the last three decades. Since the last mass global bleaching event in 2016, ocean temperatures have risen so much that NOAA had to introduce three new heat alert levels. Ongoing episodes …

Coral bleaching: Ocean heat is driving a mass bleaching event, and it could be the worst on record
8 months, 1 week ago

Coral bleaching: Ocean heat is driving a mass bleaching event, and it could be the worst on record

CNN  

CNN — Coral reefs around the world are experiencing a mass bleaching event as the climate crisis drives record-breaking ocean heat, two scientific bodies announced Monday — with some experts warning this could become the worst bleaching period in recorded history. NOAA predicts La Niña, El Niño’s cooler counterpart, could arrive between June and August this year, which provides “a …

Coral reefs around the world experiencing mass bleaching, scientists say
8 months, 1 week ago

Coral reefs around the world experiencing mass bleaching, scientists say

Al Jazeera  

Scientists warn that many of the world’s reefs may not recover from the intense, prolonged heat stress. Along coastlines from Australia to Kenya to Mexico, many of the world’s colourful coral reefs have turned a ghostly white in what scientists say has amounted to the fourth global bleaching event in the last three decades. At least 54 countries and territories …

The Science Quiz | Coral bleaching
9 months ago

The Science Quiz | Coral bleaching

The Hindu  

What is the name of the coral reef system that was in the news most recently for a significant bleaching event? The creatures primarily responsible for building reefs are called coral ______. This Australia-based marine scientist, who began with research work on coral reefs in the Caribbean in the 1970s, is widely considered to be the foremost authority on coral …

Scientists detect coral bleaching in Great Barrier Reef's far north
9 months, 1 week ago

Scientists detect coral bleaching in Great Barrier Reef's far north

Hindustan Times  

Australian researchers have found coral bleaching around six islands in the far northern parts of the Great Barrier Reef, after a government agency said last week a major bleaching event was unfolding across the world's most extensive reef ecosystem. Great Barrier Reef Scientists at the James Cook University said on Friday they found only a few relatively healthy areas, mostly …

Restored coral reefs show incredible speed of recovery: Study
9 months, 1 week ago

Restored coral reefs show incredible speed of recovery: Study

Live Mint  

Coral reefs are rapidly disappearing worldwide, and the majority are under threat due to human-induced climate change. Researchers have found that efforts to restore coral reefs not only increase coral cover, but can also reinstate ecosystem functions quite quickly. The study, published in the journal Current Biology, shows that restored coral reefs can grow at the same speed as healthy …

Australia's Great Barrier Reef in grip of 'mass bleaching event'
9 months, 2 weeks ago

Australia's Great Barrier Reef in grip of 'mass bleaching event'

The Hindu  

A "mass bleaching event" is unfolding on Australia's famed Great Barrier Reef, authorities said on March 8, as warming seas threaten the spectacular home to thousands of marine species. Often dubbed as the world's largest living structure, the Great Barrier Reef is a 2,300 km expanse of tropical corals that house a stunning array of biodiversity. Mr. Leck said climate …

Australia’s Great Barrier Reef hit by mass coral bleaching
9 months, 2 weeks ago

Australia’s Great Barrier Reef hit by mass coral bleaching

Al Jazeera  

Warming seas are threatening the home of thousands of marine species, but some corals can recover if temperatures cool. Australia’s Great Barrier Reef has been hit by a major coral bleaching event likely caused by heat stress built up over the summer at the biologically diverse site, a government agency has said. The Great Barrier Reef Marine Park Authority, which …

Cause and Effect | Alarming rise in ocean temperatures spells doom for coral ecosystems
10 months, 2 weeks ago

Cause and Effect | Alarming rise in ocean temperatures spells doom for coral ecosystems

Hindustan Times  

The oceans on February 1 reached a record high temperature of 21.12°C, a day after returning to the previous record of 21.1°C set in December 2023, after August and also April. And predicting this threat to what is often referred to as the rainforests of the sea, the US government’s Coral Reef Watch added three new alert categories to represent …

Pacific coral reefs show increase in climate resistance: Study
1 year, 4 months ago

Pacific coral reefs show increase in climate resistance: Study

Live Mint  

Coral reefs are vital to the Earth’s ecosystem. Now, a new study has shown that coral reefs in one part of the Pacific Ocean might have adjusted to higher ocean temperatures, indicating a sort of climate resistance. “Our study indicates the presence of an ecological resilience to climate change, yet also highlights the need to fulfil Paris Agreement commitments to …

Sea temperatures lead to unprecedented, dangerous bleaching of Florida's coral reef, experts say
1 year, 4 months ago

Sea temperatures lead to unprecedented, dangerous bleaching of Florida's coral reef, experts say

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Please enter a valid email address Please enter a valid email address SIGN UP I would like to be emailed about offers, events and updates from The Independent. Please try again later {{ …

Great Barrier Reef heatwave sparks fear of 'potentially catastrophic' coral bleaching event
1 year, 4 months ago

Great Barrier Reef heatwave sparks fear of 'potentially catastrophic' coral bleaching event

ABC  

Reef scientist Dean Miller has been diving on the Great Barrier Reef since 1999 and would ordinarily wear a wetsuit in winter, but not this year. Key points: The water on the Great Barrier Reef is "extremely warm" this winter, scientists say A prominent reef scientist fears another bleaching event Tanya Plibersek says the government is working to mitigate the …

Scientists say Florida Keys coral reefs are already bleaching as water temperatures hit record highs
1 year, 5 months ago

Scientists say Florida Keys coral reefs are already bleaching as water temperatures hit record highs

Associated Press  

FORT LAUDERDALE, Fla. — Some Florida Keys coral reefs are losing their color weeks earlier than normal this summer because of record-high water temperatures, meaning they are under stress and their health is potentially endangered, federal scientists said. Surface temperatures around the Keys have been averaging about 91 degrees, well above the normal mid-July average of 85 degrees, said Jacqueline …

Coral Bleaching: What is it?
1 year, 5 months ago

Coral Bleaching: What is it?

The Hindu  

Record temperatures around the world have left animals, including humans, in dire straits. There is more to bleaching, however: most corals are home to a type of algae called zooxanthellae, which give the corals their colours as well as have a symbiotic relationship with them. When the ocean environment changes – for example, if its temperature rises beyond a point, …

Florida coral reefs risk ‘nasty bleaching’ as temperatures reach 90F: ‘We’re in unchartered territories’
1 year, 5 months ago

Florida coral reefs risk ‘nasty bleaching’ as temperatures reach 90F: ‘We’re in unchartered territories’

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Florida coral reefs are facing an unprecedented threat from a sudden marine heat wave that …

To restore reefs dying in warming seas, UAE turns to coral nurseries
1 year, 6 months ago

To restore reefs dying in warming seas, UAE turns to coral nurseries

The Hindu  

On a boat off the coast of an island near Abu Dhabi, marine scientist Hamad al-Jailani feels the corals, picked from the reef nursery and packed in a box of seawater, and studies them carefully, making sure they haven’t lost their colour. “We try to grow them from very small fragments up to — now some of them have reached …

To restore reefs dying in warming seas, UAE turns to coral nurseries
1 year, 6 months ago

To restore reefs dying in warming seas, UAE turns to coral nurseries

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy On a boat off the …

Scientists freeze Great Barrier Reef coral in a world-first trial
2 years ago

Scientists freeze Great Barrier Reef coral in a world-first trial

The Hindu  

Scientists working on Australia’s Great Barrier Reef have successfully trialled a new method for freezing and storing coral larvae they say could eventually help rewild reefs threatened by climate change. The Great Barrier Reef has suffered four bleaching events in the last seven years, including the first-ever bleach during a La Niña phenomenon, which typically brings cooler temperatures. In a …

Explained | The Great Barrier Reef’s recovery and vulnerability to climate threats
2 years, 4 months ago

Explained | The Great Barrier Reef’s recovery and vulnerability to climate threats

The Hindu  

The story so far: The highest levels of coral cover, within the past 36 years, has been recorded in the northern and central parts of Australia’s Great Barrier Reef, according to the annual long-term monitoring report by the Australian Institute of Marine Science. Besides predatory attacks and tropical cyclones, scientists say that the biggest threat to the health of the …

Probiotics could be used to help in Great Barrier Reef coral transplants
2 years, 6 months ago

Probiotics could be used to help in Great Barrier Reef coral transplants

ABC  

It is a substance many people take to achieve good gut health, commonly found in yoghurt and fermented vegetables like kimchi and sauerkraut. Key points: Researchers are using probiotics on coral to counter disease Corals grown in aquaculture have high mortality rates Other scientists say successful coral transplants will only buy time and that greater action on climate change is …

What the new Australian government needs to do as Great Barrier Reef suffers fourth bleaching in seven years
2 years, 7 months ago

What the new Australian government needs to do as Great Barrier Reef suffers fourth bleaching in seven years

Firstpost  

The next federal government has to phase out fossil fuel use and exports as quickly as possible, if they are serious about saving the Great Barrier Reef Widespread coral bleaching has now occurred on the Great Barrier Reef for the fourth time in seven years. Global warming means corals are already close to their bleaching threshold, and it doesn’t take …

Most Great Barrier Reef coral studied this year was bleached
2 years, 7 months ago

Most Great Barrier Reef coral studied this year was bleached

Associated Press  

CANBERRA, Australia — More than 90% of Great Barrier Reef coral surveyed this year was bleached in the fourth such mass event in seven years in the world’s largest coral reef ecosystem, Australian government scientists said. Bleaching is caused by global warming, but this is the reef’s first bleaching event during a La Niña weather pattern, which is associated with …

Most Great Barrier Reef coral studied this year was bleached
2 years, 7 months ago

Most Great Barrier Reef coral studied this year was bleached

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy More than 90% of Great …

Coral reefs provide stunning images of a world under assault
2 years, 7 months ago

Coral reefs provide stunning images of a world under assault

The Hindu  

Humans don’t know what they’re missing under the surface of a busy shipping channel in the “cruise capital of the world.” Just below the keels of massive ships, an underwater camera provides a live feed from another world, showing marine life that’s trying its best to resist global warming. That camera in Miami’s Government Cut is just one of the …

Coral reefs provide stunning images of a world under assault
2 years, 7 months ago

Coral reefs provide stunning images of a world under assault

Associated Press  

MIAMI — Humans don’t know what they’re missing under the surface of a busy shipping channel in the “cruise capital of the world.” Just below the keels of massive ships, an underwater camera provides a live feed from another world, showing marine life that’s trying its best to resist global warming. That camera in Miami’s Government Cut is just one …

The phenomenon of coral bleaching
2 years, 8 months ago

The phenomenon of coral bleaching

The Hindu  

The story so far: The management authority of the world’s largest coral reef system, Australia’s Great Barrier Reef, confirmed on March 25 that the reef is experiencing a mass coral bleaching event. This is the sixth time that the coral reef system is being hit by a widespread and damaging bleaching event and the fourth time in six years that …

Great Barrier Reef in fourth mass bleaching event since 2016
2 years, 9 months ago

Great Barrier Reef in fourth mass bleaching event since 2016

Al Jazeera  

World’s largest coral reef system under heat stress despite the La Nina weather phenomenon associated with cooler temperatures. Australia’s Great Barrier Reef, the world’s most extensive coral reef system, is in the midst of a mass bleaching event. “Coral bleaching has been observed at multiple reefs in all four management areas, confirming a mass bleaching event, the fourth since 2016 …

Fish on Australia's Great Barrier Reef are losing their colour, study finds
2 years, 9 months ago

Fish on Australia's Great Barrier Reef are losing their colour, study finds

Daily Mail  

Fish on Australia's Great Barrier Reef are losing their colour as coral reefs degrade and die during bleaching events, a new study shows. Pictured is the lemon damselfish, one of the species looked at for the study Bleached coral on the Great Barrier Reef outside Cairns Australia during a mass bleaching event. The Great Barrier Reef has seen mass bleaching …

Great Barrier Reef suffers widespread coral bleaching
2 years, 9 months ago

Great Barrier Reef suffers widespread coral bleaching

The Hindu  

Australia’s Great Barrier Reef is suffering widespread and severe coral bleaching due to high ocean temperatures two years after a mass bleaching event, a government agency said on Friday. The report by the Great Barrier Reef Marine Authority, which manages the world’s largest coral reef ecosystem, comes three days before a United Nations delegation is due to assess whether the …

Great Barrier Reef suffers widespread coral bleaching
2 years, 9 months ago

Great Barrier Reef suffers widespread coral bleaching

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Australia’s Great Barrier Reef is suffering widespread and severe coral bleaching due to high ocean …

Coral reef safe zones set to plummet, while potential bleaching events loom in Qld, WA
2 years, 10 months ago

Coral reef safe zones set to plummet, while potential bleaching events loom in Qld, WA

ABC  

The number of coral reefs worldwide that will be spared the harm of warming is predicted to plummet within just a few decades. Key points: Researchers predict just 0.2 per cent of the world's reefs will be unaffected by warming at 1.5C Signs suggest bleaching events may occur in WA and QLD in the coming weeks Climate action is the …

Darwin in a lab: Coral evolution tweaked for global warming
3 years ago

Darwin in a lab: Coral evolution tweaked for global warming

Associated Press  

COCONUT ISLAND, Hawaii — On a moonless summer night in Hawaii, krill, fish and crabs swirl through a beam of light as two researchers peer into the water above a vibrant reef. In this Darwinian experiment, the scientists are trying to speed up coral’s evolutionary clock to breed “super corals” that can better withstand the impacts of global warming. “Corals …

Darwin in a lab: Scientists trying to breed super corals by tweaking evolution
3 years ago

Darwin in a lab: Scientists trying to breed super corals by tweaking evolution

India Today  

On a moonless summer night in Hawaii, krill, fish and crabs swirl through a beam of light as two researchers peer into the water above a vibrant reef. In this Darwinian experiment, the scientists are trying to speed up coral’s evolutionary clock to breed “super corals” that can better withstand the impacts of global warming. “Corals are threatened worldwide by …

Study suggests Australia’s Great Barrier Reef can still be saved, if global warming kept to 1.5C
3 years, 1 month ago

Study suggests Australia’s Great Barrier Reef can still be saved, if global warming kept to 1.5C

The Independent  

Sign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Australia’s Great Barrier Reef has a chance of survival if global warming can be limited …

Coral bleaching extent shown in new study, with WA reefs suffering more than Great Barrier Reef
3 years, 2 months ago

Coral bleaching extent shown in new study, with WA reefs suffering more than Great Barrier Reef

ABC  

A major analysis of global coral reef health has raised concern about the frequency of bleaching events in Western Australia. Key points: A study has revealed the rate at which WA reefs are being bleached It points to climate change as the main cause of coral bleaching The report includes data from 73 different countries The report, released this week …

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