Monday, 19 August, 2019

Ocean Heatwaves Affect Coral Reefs More Than Initially Expected

Bleached coral Bleached coral
Sandra Phillips | 10 August, 2019, 10:09

This discovery fits into this category. When degradation occurs, coral can often regenerate when ocean temperatures level back out, but these ocean heat waves appear quicker and linger longer causing the coral to dies off completely.

The study by a team of researchers from UNSW Sydney, The University of Newcastle, The University of Technology Sydney, James Cook University and The National Oceanic and Atmospheric Administration (NOAA), USA was published today in journal Current Biology. The report indicates that the benefits derived by humans from coral reefs "span from coastal protection to subsistence and industrial fisheries", and that these industries depend on the structural integrity of the coral reefs' 3-D structures, which are greatly compromised by ongoing climate change as well as ocean heatwaves.

The scientists concluded that severe and frequent marine heatwaves can destroy corals through a processes called "bleaching".

As a result, heat wave-induced mortality events should be viewed as a distinct biological phenomenon from bleaching events, she said.

"But what we are now seeing is that severe marine heatwave events can have a far more severe impact than coral bleaching", Ainsworth continued.

Their research showed that while it was previously understood that coral bleaching can lead to a break down of symbiosis, marine heatwaves can lead directly to heat-induced mortality of the coral animal as well.

Commenting on the paper, Dr Laura Richardson, from the School of Ocean Sciences at Bangor University, UK, said that the really significant discovery was "the rapidity with which the reef skeleton breaks down when you have these severe heatwaves".

Could answers still come in B.C. homicides? Retired Mountie thinks so
Officials had received a "credible" tip last month that the two men were spotted at a garbage dump in the Gillam , Man. community. The investigation is not closed even though authorities believe the suspects were the killers, authorities said.

Kevin Durant Doesn't Hold Warriors Responsible For Achilles Injury
The Golden State Warriors Have Said They Will Retire The No.35 In Honor Of Kevin Durant Due To His Service With The Team. Speaking extensively about the injury for the first time, Durant refused to place fault on the Warriors.

Pakistan suspends Thar Express over India's Kashmir move
The Samjhauta Express, named after the Hindi word for "agreement", comprises six sleeper coaches and an AC 3-tier coach. The clarification came after a few media reports said Pakistan had closed down a couple of routes for Indian flights.

The researchers also have evidence that the skeleton of corals, also an animal species, begin to decay within weeks of a marine heatwave.

Laura Richardson at the United Kingdom -based Bangor University's School of Ocean Sciences-who was not involved in the study-told BBC News that the team's significant discovery was "the rapidity with which the reef skeleton breaks down when you have these severe heatwaves".

The effects of climate change on coral reefs is fairly well-known; most schoolchildren have seen side-to-side comparisons of lively, healthy coral reefs juxtaposed with bleached, lifeless ones, caused by pollution and other human activities.

"We were able to study the consequences of this process of rapid colonisation using CT scanning of the coral skeleton - as would be used in medical imaging".

"Given that the degradation of coral reefs will result in the collapse of ecosystem services that sustain over half a billion people, we urgently need actions both globally and locally that protect and conserve these truly wonderful places".

PBS News Hour reported that "without the option to recover, the world may start seeing corals die off faster than expected".

Recommended

Prince George unemployment rate sees slight rise in July Prince George unemployment rate sees slight rise in July Saskatchewan's economy lost 2,200 jobs in the month, StatCan reported, with the losses coming from full-time positions. The other provinces that saw decreases included Nova Scotia, Prince Edward Island, Quebec and Alberta.

San Francisco designates Joe Panik for assignment San Francisco designates Joe Panik for assignment Aside from a decline in his offensive production, a lack of defensive versatility wound up costing Panik his roster spot. Panik was a first-round draft pick of San Francisco who burst on the scene in 2014 as a midseason call-up.

U.S. wholesale prices rise just 0.2% in July U.S. wholesale prices rise just 0.2% in July Yet wages are rising only modestly and many businesses are reluctant to raise prices in the face of online and global competition. Services prices meanwhile dipped by 0.1% in comparison to June, dragged lower by a 0.3% drop in the cost of "other services".

Gunman kills two on Houston expressway Gunman kills two on Houston expressway The Houston Police Department has confirmed that two men were killed on the I-10 East Freeway at John Ralston Road. The vehicle that was hit briefly came to a rest at the top of a hill before starting to roll downhill.

Shawn Mendes Kicks Off 21st Birthday With His "Señorita" Camila Cabello Shawn Mendes Kicks Off 21st Birthday With His It's not too late that the couple enjoyed there Romantic time in Miami and where spotted making out at the beach. They wouldn't jeopardise all this for media attention, right?

Alleged Qualcomm Snapdragon 865 Benchmarks Leak With Dominant Multi-Core Performance Alleged Qualcomm Snapdragon 865 Benchmarks Leak With Dominant Multi-Core Performance The listing shows a new Qualcomm chipset with a codename "Kona" runs on a prototype Android 10 device that has 6 gigabytes of RAM. Surely, some flagship device going to be powered with this flagship processor and we expect it might Samsung's Galaxy S11 lineup.

Malaysia charges Goldman execs over 1MDB scandal Malaysia charges Goldman execs over 1MDB scandal Alibaba is expanding into Malaysia and considers the country as key partner for its electronic world trading initiative. British banker Michael Sherwood , former vice chairman of the Wall Street firm, is also on the list.

El Paso Shooting Victims Refused To Meet With Donald Trump El Paso Shooting Victims Refused To Meet With Donald Trump And the love and the respect for the office of the presidency, it was - I wish you could have been in there to see it. He also said better background checks are needed for people wanting to buy guns.

Canadian Bianca Andreescu reaches Rogers Cup semifinals Canadian Bianca Andreescu reaches Rogers Cup semifinals She will play the victor between Belinda Bencic and Elina Svitolina, both former Rogers Cup champions, in the quarterfinals. Kenin, ranked No. 29, had knocked off the top-ranked Ashleigh Barty on Tuesday to reach the third round.

USA defense secretary visits South Korea as region faces myriad challenges USA  defense secretary visits South Korea as region faces myriad challenges On July 4, Japan made it a requirement to file applications for each transaction for exporting fluorinated polyimide, hydrogen fluoride and photoresist to South Korea.

The Beatles’ ‘Abbey Road’ to Be Celebrated with Expanded 50th Anniversary Editions The Beatles’ ‘Abbey Road’ to Be Celebrated with Expanded 50th Anniversary Editions That count surged yesterday as fans gathered, some travelling from across the globe, to celebrate the milestone anniversary. More details and a complete breakdown of what's contained in the Abbey Road 50th anniversary edition can be found here.

Suspected El Paso Shooter Told Police He Was Targeting 'Mexicans' Suspected El Paso Shooter Told Police He Was Targeting 'Mexicans' This happened less than 24 hours before an unrelated mass shooting in Dayton, Ohio , where police have not issued a clear motive. An arrest report obtained by some news outlets sheds light on his arrest and his interviews while in police custody.

The Jonas Brothers supported by doting wives on opening night of tour The Jonas Brothers supported by doting wives on opening night of tour Priyanka Chopra's father-in-law Paul Kevin Jonas took to his social media handle and shared a collage of lovely pictures. Jonas opted for chunky red, black, white and sky-blue leather sneakers featuring a lace-up silhouette by Sergio Rossi .

Kenny Stills Calls Out Dolphins Owner For Trump Fundraiser Kenny Stills Calls Out Dolphins Owner For Trump Fundraiser Everything I do has been real from the very beginning", Stills said, via ESPN's Cameron Wolfe. "And it's going to be that way". Then Stills revealed that the death threats he received at the height of the kneeling controversy in 2017 have returned.

Anthony Joshua’s rematch with Andy Ruiz Jr is set for Saudi Arabia Anthony Joshua’s rematch with Andy Ruiz Jr is set for Saudi Arabia He had won all 22 of his previous bouts before surrendering his titles to Ruiz Jr in what he described as a "minor setback". Saudi Arabia is set to host the world heavyweight title rematch between champion Andy Ruiz Jr and Anthony Joshua .