Scientists have discovered why sea urchins are dying at an alarming rate in the Middle East – and poison or pollution are not to blame.
Sea urchins have been killed in mass numbers in an epidemic scientists have warned could threaten the Arabian Gulf's coral reefs, which rely on the creatures to keep algae at bay.
Experts now suspect a tiny parasite could be the culprit.
Concerns were raised that the mass die-offs of long-spined sea urchins would spread to the Arabian Gulf following reported deaths in the Gulf of Oman on reefs near Muscat.
Sea urchins also died in large numbers in a matter of weeks near Eliat in Israel and along Saudi Arabia's Red Sea coast.
We've never seen anything like the speed at which this is unfolding in terms of severity
Dr Omri Bronstein,
Tel Aviv University
Dr Omri Bronstein of Tel Aviv University, who has led the research looking at deaths in the Gulf of Aqaba, at the northern end of the Red Sea, said healthy sea urchins turned skeletal in a couple of days.
“We've never seen anything like the speed at which this is unfolding in terms of severity, intensity and rate of progress of the pathogen,” he told The National.
Prof John Burt, head of the marine biology lab at New York University Abu Dhabi, said that it was suspected that the pathogen had been transported in ship ballast water from the Caribbean, where there have been similar large-scale deaths this year.
Tests carried out by the lab's researchers this week at five coral reef sites around Abu Dhabi did not find evidence of mass die-offs.
However, Prof Burt told The National that there was high risk of death and damage to coral reef, given the high level of shipping activity.
“If this pathogenic species is being transported via shipping, it is likely only a matter of time before we see it on our shores, and further monitoring and plans towards marine management interventions are in order,” he said.
“Given the pace at which it has spread across the Red Sea and into the Gulf of Oman, we anticipate its arrival in the Emirates is imminent.”
One population of long-spined sea urchins at the northernmost tip of the Gulf of Aqaba that Dr Bronstein and his doctoral students recently surveyed was wiped out at extraordinary speed.
“The site that literally had thousands of sea urchins was obliterated over two weeks,” he said.
The pace of the deaths was such that Dr Bronstein and his team first thought that pollution or poisoning was to blame.
“When we started extending our surveys to Jordan and Egypt, we realised we’re not looking at a local pollution event, rather something rapidly extending,” he said.
One of the factors behind the quick spread of the disease is the very narrow topography of the Gulf of Aqaba and the Gulf of Suez, as well as the entire Red Sea, Dr Bronstein said.
“The ocean has no borders,” he said. “If the disease is waterborne, it will reach all places. This is not something we should tackle independently.”
Dr Bronstein has been examining the deaths of long-spined sea urchins and working with colleagues in Jordan, Egypt and eastern Mediterranean nations, where the species is regarded as invasive.
Dr Mahmoud Hanafy, professor of marine environment studies at Suez Canal University in Cairo, said he conducted a sweep of black sea urchins and had not seen a single one.
“It's really quite strange,” he said.
The speed with which the parasite has killed entire colonies of sea urchins is really quite strange, I have never seen anything like it
Dr Mahmoud Hanafy,
professor of marine environment studies at Suez Canal University in Cairo
Dr Hanafy said fishermen in South Sinai had confirmed that sea urchins started dying en masse there about two months ago.
However, despite remaining optimistic that the mass disappearance will not have catastrophic effects, the reality says otherwise.
“It's an essential species for the stability of the ecosystem because it regularly feeds on algae and prevents it from growing uncontrollably on the corals to the point where it kills them. But it's important to note that there are other species that do the same thing,” he said.
Dr Hanafy cautioned against drawing hasty conclusions but stressed the importance of further research at a regional level.
“That said, the speed and profuseness with which the parasite has killed entire colonies of sea urchins across thousands of kilometres is really quite strange,” he said.
“But I think that if the root causes of the problem are dealt with quickly enough, the reefs could very well recover.”
The pathogen is thought to have spread from these Mediterranean populations to the Gulf of Aqaba.
When infected, the sea urchins become paralysed, leaving them helpless against predatory fish.
Tests being carried out in the coming days are expected to identify the parasite, which is thought to be a single-cell pathogen with the scientific name Philaster apodigitiformis.
The first reports were from the US Virgin Islands in the Caribbean while deaths were reported off Jamaica and Florida earlier this year.
In the 1980s, there were mass deaths among sea urchins in the Caribbean, resulting in damage to coral reefs.
These have yet to recover from the devastation, Dr Bronstein said, offering a “scary” vision of what could happen to reefs – already under pressure due to climate change – hit by the latest epidemic.
Long-spined Diadema sea urchins have been described as the “gardener” because they prevent algae from overwhelming reefs.
“They feed on the algae that compete with corals for sunlight. The coral growth rate is nothing compared with the algal growth rate,” Dr Bronstein said.
“The algae will always out-compete the corals [which] need the herbivores.”
He said populations of Diadema setosum in the eastern Mediterranean, the Red Sea, the Arabian Gulf and neighbouring areas were distinct from those elsewhere in the world.
The die-offs could wipe out this unique type, described by scientists as Clade B, and populations of D. setosum from elsewhere may not be able to repopulate areas in the Middle East.
Dr Bronstein would like to establish a “brood stock” of Clade B sea urchins for such repopulation efforts in the future.
“If [the parasite] will reach all the way through the Red Sea, it will reach the [Arabian] Gulf and we’re looking at a threat of losing the entire genetic clade, which is adapted to living in our environment,” he said.
“It’s something we must work quickly to try to mitigate,” he said. “We have a narrow window of opportunity to actually do something.”
The plan is to use uninfected populations in the Mediterranean to establish this brood stock.
THE SPECS
Engine: 1.6-litre turbo
Transmission: six-speed automatic
Power: 165hp
Torque: 240Nm
Price: From Dh89,000 (Enjoy), Dh99,900 (Innovation)
On sale: Now
The%20Afghan%20connection
%3Cp%3EThe%20influx%20of%20talented%20young%20Afghan%20players%20to%20UAE%20cricket%20could%20have%20a%20big%20impact%20on%20the%20fortunes%20of%20both%20countries.%20Here%20are%20three%20Emirates-based%20players%20to%20watch%20out%20for.%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3EHassan%20Khan%20Eisakhil%3C%2Fstrong%3E%0D%3Cbr%3EMohammed%20Nabi%20is%20still%20proving%20his%20worth%20at%20the%20top%20level%20but%20there%20is%20another%20reason%20he%20is%20raging%20against%20the%20idea%20of%20retirement.%20If%20the%20allrounder%20hangs%20on%20a%20little%20bit%20longer%2C%20he%20might%20be%20able%20to%20play%20in%20the%20same%20team%20as%20his%20son%2C%20Hassan%20Khan.%20The%20family%20live%20in%20Ajman%20and%20train%20in%20Sharjah.%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3EMasood%20Gurbaz%3C%2Fstrong%3E%0D%3Cbr%3EThe%20opening%20batter%2C%20who%20trains%20at%20Sharjah%20Cricket%20Academy%2C%20is%20another%20player%20who%20is%20a%20part%20of%20a%20famous%20family.%20His%20brother%2C%20Rahmanullah%2C%20was%20an%20IPL%20winner%20with%20Kolkata%20Knight%20Riders%2C%20and%20opens%20the%20batting%20with%20distinction%20for%20Afghanistan.%0D%3Cbr%3E%20%0D%3Cbr%3E%3Cstrong%3EOmid%20Rahman%3C%2Fstrong%3E%0D%3Cbr%3EThe%20fast%20bowler%20became%20a%20pioneer%20earlier%20this%20year%20when%20he%20became%20the%20first%20Afghan%20to%20represent%20the%20UAE.%20He%20showed%20great%20promise%20in%20doing%20so%2C%20too%2C%20playing%20a%20key%20role%20in%20the%20senior%20team%E2%80%99s%20qualification%20for%20the%20Asia%20Cup%20in%20Muscat%20recently.%0D%3Cbr%3E%3C%2Fp%3E%0A
In The Heights
Directed by: Jon M. Chu
Stars: Anthony Ramos, Lin-Manual Miranda
Rating: ****
Killing of Qassem Suleimani
ESSENTIALS
The flights
Emirates flies from Dubai to Phnom Penh via Yangon from Dh2,700 return including taxes. Cambodia Bayon Airlines and Cambodia Angkor Air offer return flights from Phnom Penh to Siem Reap from Dh250 return including taxes. The flight takes about 45 minutes.
The hotels
Rooms at the Raffles Le Royal in Phnom Penh cost from $225 (Dh826) per night including taxes. Rooms at the Grand Hotel d'Angkor cost from $261 (Dh960) per night including taxes.
The tours
A cyclo architecture tour of Phnom Penh costs from $20 (Dh75) per person for about three hours, with Khmer Architecture Tours. Tailor-made tours of all of Cambodia, or sites like Angkor alone, can be arranged by About Asia Travel. Emirates Holidays also offers packages.
Global state-owned investor ranking by size
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BIGGEST CYBER SECURITY INCIDENTS IN RECENT TIMES
SolarWinds supply chain attack: Came to light in December 2020 but had taken root for several months, compromising major tech companies, governments and its entities
Microsoft Exchange server exploitation: March 2021; attackers used a vulnerability to steal emails
Kaseya attack: July 2021; ransomware hit perpetrated REvil, resulting in severe downtime for more than 1,000 companies
Log4j breach: December 2021; attackers exploited the Java-written code to inflitrate businesses and governments
ELIO
Starring: Yonas Kibreab, Zoe Saldana, Brad Garrett
Directors: Madeline Sharafian, Domee Shi, Adrian Molina
Rating: 4/5
Greatest of All Time
Starring: Vijay, Sneha, Prashanth, Prabhu Deva, Mohan
SPEC%20SHEET%3A%20APPLE%20M3%20MACBOOK%20AIR%20(13%22)
%3Cp%3E%3Cstrong%3EProcessor%3A%3C%2Fstrong%3E%20Apple%20M3%2C%208-core%20CPU%2C%20up%20to%2010-core%20CPU%2C%2016-core%20Neural%20Engine%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EDisplay%3A%3C%2Fstrong%3E%2013.6-inch%20Liquid%20Retina%2C%202560%20x%201664%2C%20224ppi%2C%20500%20nits%2C%20True%20Tone%2C%20wide%20colour%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMemory%3A%3C%2Fstrong%3E%208%2F16%2F24GB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStorage%3A%3C%2Fstrong%3E%20256%2F512GB%20%2F%201%2F2TB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EI%2FO%3A%3C%2Fstrong%3E%20Thunderbolt%203%2FUSB-4%20(2)%2C%203.5mm%20audio%2C%20Touch%20ID%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EConnectivity%3A%3C%2Fstrong%3E%20Wi-Fi%206E%2C%20Bluetooth%205.3%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBattery%3A%3C%2Fstrong%3E%2052.6Wh%20lithium-polymer%2C%20up%20to%2018%20hours%2C%20MagSafe%20charging%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECamera%3A%3C%2Fstrong%3E%201080p%20FaceTime%20HD%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EVideo%3A%3C%2Fstrong%3E%20Support%20for%20Apple%20ProRes%2C%20HDR%20with%20Dolby%20Vision%2C%20HDR10%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EAudio%3A%3C%2Fstrong%3E%204-speaker%20system%2C%20wide%20stereo%2C%20support%20for%20Dolby%20Atmos%2C%20Spatial%20Audio%20and%20dynamic%20head%20tracking%20(with%20AirPods)%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EColours%3A%3C%2Fstrong%3E%20Midnight%2C%20silver%2C%20space%20grey%2C%20starlight%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EIn%20the%20box%3A%3C%2Fstrong%3E%20MacBook%20Air%2C%2030W%2F35W%20dual-port%2F70w%20power%20adapter%2C%20USB-C-to-MagSafe%20cable%2C%202%20Apple%20stickers%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPrice%3A%3C%2Fstrong%3E%20From%20Dh4%2C599%3C%2Fp%3E%0A
The specs
Price, base / as tested Dh100,000 (estimate)
Engine 2.4L four-cylinder
Gearbox Nine-speed automatic
Power 184bhp at 6,400rpm
Torque 237Nm at 3,900rpm
Fuel economy, combined 9.4L/100km
more from Janine di Giovanni
Sam Smith
Where: du Arena, Abu Dhabi
When: Saturday November 24
Rating: 4/5
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3EName%3A%20%3C%2Fstrong%3ESmartCrowd%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2018%0D%3Cbr%3E%3Cstrong%3EFounder%3A%20%3C%2Fstrong%3ESiddiq%20Farid%20and%20Musfique%20Ahmed%0D%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3EDubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%20%2F%20PropTech%0D%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%20%3C%2Fstrong%3E%24650%2C000%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2035%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%20%3C%2Fstrong%3ESeries%20A%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EVarious%20institutional%20investors%20and%20notable%20angel%20investors%20(500%20MENA%2C%20Shurooq%2C%20Mada%2C%20Seedstar%2C%20Tricap)%3C%2Fp%3E%0A
Drivers’ championship standings after Singapore:
1. Lewis Hamilton, Mercedes - 263
2. Sebastian Vettel, Ferrari - 235
3. Valtteri Bottas, Mercedes - 212
4. Daniel Ricciardo, Red Bull - 162
5. Kimi Raikkonen, Ferrari - 138
6. Sergio Perez, Force India - 68
Dates for the diary
To mark Bodytree’s 10th anniversary, the coming season will be filled with celebratory activities:
- September 21 Anyone interested in becoming a certified yoga instructor can sign up for a 250-hour course in Yoga Teacher Training with Jacquelene Sadek. It begins on September 21 and will take place over the course of six weekends.
- October 18 to 21 International yoga instructor, Yogi Nora, will be visiting Bodytree and offering classes.
- October 26 to November 4 International pilates instructor Courtney Miller will be on hand at the studio, offering classes.
- November 9 Bodytree is hosting a party to celebrate turning 10, and everyone is invited. Expect a day full of free classes on the grounds of the studio.
- December 11 Yogeswari, an advanced certified Jivamukti teacher, will be visiting the studio.
- February 2, 2018 Bodytree will host its 4th annual yoga market.
The specs
Engine: 2.0-litre 4-cyl turbo
Power: 247hp at 6,500rpm
Torque: 370Nm from 1,500-3,500rpm
Transmission: 10-speed auto
Fuel consumption: 7.8L/100km
Price: from Dh94,900
On sale: now
Leap of Faith
Michael J Mazarr
Public Affairs
Dh67
Mercedes-AMG GT 63 S E Performance: the specs
Engine: 4.0-litre twin-turbo V8 plus rear-mounted electric motor
Power: 843hp at N/A rpm
Torque: 1470Nm N/A rpm
Transmission: 9-speed auto
Fuel consumption: 8.6L/100km
On sale: October to December
Price: From Dh875,000 (estimate)
ENGLAND SQUAD
Joe Root (captain), Dom Sibley, Rory Burns, Dan Lawrence, Ben Stokes, Ollie Pope, Ben Foakes (wicketkeeper), Moeen Ali, Olly Stone, Chris Woakes, Jack Leach, Stuart Broad
Labour dispute
The insured employee may still file an ILOE claim even if a labour dispute is ongoing post termination, but the insurer may suspend or reject payment, until the courts resolve the dispute, especially if the reason for termination is contested. The outcome of the labour court proceedings can directly affect eligibility.
- Abdullah Ishnaneh, Partner, BSA Law
THREE
%3Cp%3EDirector%3A%20Nayla%20Al%20Khaja%3C%2Fp%3E%0A%3Cp%3EStarring%3A%20Jefferson%20Hall%2C%20Faten%20Ahmed%2C%20Noura%20Alabed%2C%20Saud%20Alzarooni%3C%2Fp%3E%0A%3Cp%3ERating%3A%203.5%2F5%3C%2Fp%3E%0A
The specs
Engine: 4.0-litre flat-six
Torque: 450Nm at 6,100rpm
Transmission: 7-speed PDK auto or 6-speed manual
Fuel economy, combined: 13.8L/100km
On sale: Available to order now
Biog
Mr Kandhari is legally authorised to conduct marriages in the gurdwara
He has officiated weddings of Sikhs and people of different faiths from Malaysia, Sri Lanka, Russia, the US and Canada
Father of two sons, grandfather of six
Plays golf once a week
Enjoys trying new holiday destinations with his wife and family
Walks for an hour every morning
Completed a Bachelor of Commerce degree in Loyola College, Chennai, India
2019 is a milestone because he completes 50 years in business
ARABIAN GULF LEAGUE FIXTURES
Thursday, September 21
Al Dahfra v Sharjah (kick-off 5.35pm)
Al Wasl v Emirates (8.30pm)
Friday, September 22
Dibba v Al Jazira (5.25pm)
Al Nasr v Al Wahda (8.30pm)
Saturday, September 23
Hatta v Al Ain (5.25pm)
Ajman v Shabab Al Ahli (8.30pm)
Benefits of first-time home buyers' scheme
- Priority access to new homes from participating developers
- Discounts on sales price of off-plan units
- Flexible payment plans from developers
- Mortgages with better interest rates, faster approval times and reduced fees
- DLD registration fee can be paid through banks or credit cards at zero interest rates
UAE currency: the story behind the money in your pockets
All%20We%20Imagine%20as%20Light
%3Cp%3E%3Cstrong%3EDirector%3A%20%3C%2Fstrong%3EPayal%20Kapadia%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%3C%2Fstrong%3E%20Kani%20Kusruti%2C%20Divya%20Prabha%2C%20Chhaya%20Kadam%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%204%2F5%3C%2Fp%3E%0A
Company%C2%A0profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%20%3C%2Fstrong%3ETuhoon%0D%3Cbr%3E%3Cstrong%3EYear%20started%3A%20%3C%2Fstrong%3EJune%202021%0D%3Cbr%3E%3Cstrong%3ECo-founders%3A%20%3C%2Fstrong%3EFares%20Ghandour%2C%20Dr%20Naif%20Almutawa%2C%20Aymane%20Sennoussi%0D%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3ERiyadh%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3Ehealth%20care%0D%3Cbr%3E%3Cstrong%3ESize%3A%20%3C%2Fstrong%3E15%20employees%2C%20%24250%2C000%20in%20revenue%0D%3Cbr%3EI%3Cstrong%3Envestment%20stage%3A%20s%3C%2Fstrong%3Eeed%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EWamda%20Capital%2C%20Nuwa%20Capital%2C%20angel%20investors%3C%2Fp%3E%0A
Tearful appearance
Chancellor Rachel Reeves set markets on edge as she appeared visibly distraught in parliament on Wednesday.
Legislative setbacks for the government have blown a new hole in the budgetary calculations at a time when the deficit is stubbornly large and the economy is struggling to grow.
She appeared with Keir Starmer on Thursday and the pair embraced, but he had failed to give her his backing as she cried a day earlier.
A spokesman said her upset demeanour was due to a personal matter.
THE APPRENTICE
Director: Ali Abbasi
Starring: Sebastian Stan, Maria Bakalova, Jeremy Strong
Rating: 3/5
'Laal Kaptaan'
Director: Navdeep Singh
Stars: Saif Ali Khan, Manav Vij, Deepak Dobriyal, Zoya Hussain
Rating: 2/5
Lexus LX700h specs
Engine: 3.4-litre twin-turbo V6 plus supplementary electric motor
Power: 464hp at 5,200rpm
Torque: 790Nm from 2,000-3,600rpm
Transmission: 10-speed auto
Fuel consumption: 11.7L/100km
On sale: Now
Price: From Dh590,000
Ruwais timeline
1971 Abu Dhabi National Oil Company established
1980 Ruwais Housing Complex built, located 10 kilometres away from industrial plants
1982 120,000 bpd capacity Ruwais refinery complex officially inaugurated by the founder of the UAE Sheikh Zayed
1984 Second phase of Ruwais Housing Complex built. Today the 7,000-unit complex houses some 24,000 people.
1985 The refinery is expanded with the commissioning of a 27,000 b/d hydro cracker complex
2009 Plans announced to build $1.2 billion fertilizer plant in Ruwais, producing urea
2010 Adnoc awards $10bn contracts for expansion of Ruwais refinery, to double capacity from 415,000 bpd
2014 Ruwais 261-outlet shopping mall opens
2014 Production starts at newly expanded Ruwais refinery, providing jet fuel and diesel and allowing the UAE to be self-sufficient for petrol supplies
2014 Etihad Rail begins transportation of sulphur from Shah and Habshan to Ruwais for export
2017 Aldar Academies to operate Adnoc’s schools including in Ruwais from September. Eight schools operate in total within the housing complex.
2018 Adnoc announces plans to invest $3.1 billion on upgrading its Ruwais refinery
2018 NMC Healthcare selected to manage operations of Ruwais Hospital
2018 Adnoc announces new downstream strategy at event in Abu Dhabi on May 13
Source: The National
