The warming waters of the Arabian Gulf mean fish must adapt to survive – but new research suggests local marine life might be particularly good at it.
Scientists at NYU Abu Dhabi found reef fish in the harsh Arabian Gulf conditions had developed a higher "thermal tolerance" than in the milder Gulf of Oman. However, the Arabian Gulf had fewer fish species overall, suggesting those unable to adapt had been lost.
Already the world's hottest sea, the Arabian Gulf is expected to become warmer still due to climate change, altering a marine ecosystem that supports tourism and fishing in the UAE. Temperatures approaching 40°C have been recorded in waters off the Emirates, even at depths of six metres.
"The increased thermal tolerance observed in fish from the Arabian Gulf suggests an adaptive response to years of extreme temperatures," said Daniel Ripley, one of the leaders of the Mubadala Arabian Centre for Climate and Environmental Sciences research team.
"However, the noticeably lower fish diversity in the Arabian Gulf compared to the Gulf of Oman indicates that only certain species can physiologically adjust to temperature changes, meaning fewer species will survive as the climate continues to warm.”
Scientists tested one theory that fish might be able to adjust their heart rate or metabolism to survive in warmer waters. However, there was no difference between the Arabian Gulf and Gulf of Oman on that score, suggesting the theory does not hold true for tropical fish.
Dubai last year installed 1,000 artificial "reef modules" in its waters to provide food and shelter for marine life, making good on a Dubai Reef project unveiled at the Cop28 climate summit. The reefs are designed to last more than 100 years, providing long-term ecological benefits.
“While some coral reef fish in the Arabian Gulf show slight adaptability to increasing temperatures, many do not,” said biology professor John Burt, a second leader of the research. “This suggests that as global temperatures rise, fish biodiversity is likely to decline in many ecosystems. Our findings highlight the need to further investigate existing theories of thermal tolerance across different environments to better predict the long-term impacts of climate change.”
The study Narrow Margins: Aerobic Performance and Temperature Tolerance of Coral Reef Fishes Facing Extreme Thermal Variability is published in the journal Global Change Biology.
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The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
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Sinopharm vaccine explained
The Sinopharm vaccine was created using techniques that have been around for decades.
“This is an inactivated vaccine. Simply what it means is that the virus is taken, cultured and inactivated," said Dr Nawal Al Kaabi, chair of the UAE's National Covid-19 Clinical Management Committee.
"What is left is a skeleton of the virus so it looks like a virus, but it is not live."
This is then injected into the body.
"The body will recognise it and form antibodies but because it is inactive, we will need more than one dose. The body will not develop immunity with one dose," she said.
"You have to be exposed more than one time to what we call the antigen."
The vaccine should offer protection for at least months, but no one knows how long beyond that.
Dr Al Kaabi said early vaccine volunteers in China were given shots last spring and still have antibodies today.
“Since it is inactivated, it will not last forever," she said.
The burning issue
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
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THE BIO
Bio Box
Role Model: Sheikh Zayed, God bless his soul
Favorite book: Zayed Biography of the leader
Favorite quote: To be or not to be, that is the question, from William Shakespeare's Hamlet
Favorite food: seafood
Favorite place to travel: Lebanon
Favorite movie: Braveheart
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Neighbourhood Watch
Which honey takes your fancy?
Al Ghaf Honey
The Al Ghaf tree is a local desert tree which bears the harsh summers with drought and high temperatures. From the rich flowers, bees that pollinate this tree can produce delicious red colour honey in June and July each year
Sidr Honey
The Sidr tree is an evergreen tree with long and strong forked branches. The blossom from this tree is called Yabyab, which provides rich food for bees to produce honey in October and November. This honey is the most expensive, but tastiest
Samar Honey
The Samar tree trunk, leaves and blossom contains Barm which is the secret of healing. You can enjoy the best types of honey from this tree every year in May and June. It is an historical witness to the life of the Emirati nation which represents the harsh desert and mountain environments
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Match statistics
Abu Dhabi Harlequins 36 Bahrain 32
Harlequins
Tries: Penalty 2, Stevenson, Teasdale, Semple
Cons: Stevenson 2
Pens: Stevenson
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Pen: Radley
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Ziina users can donate to relief efforts in Beirut
Ziina users will be able to use the app to help relief efforts in Beirut, which has been left reeling after an August blast caused an estimated $15 billion in damage and left thousands homeless. Ziina has partnered with the United Nations High Commissioner for Refugees to raise money for the Lebanese capital, co-founder Faisal Toukan says. “As of October 1, the UNHCR has the first certified badge on Ziina and is automatically part of user's top friends' list during this campaign. Users can now donate any amount to the Beirut relief with two clicks. The money raised will go towards rebuilding houses for the families that were impacted by the explosion.”
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• A nationalist, his campaign slogan was Poland First. "Let's help others, but let's take care of our own citizens first," he said on social media in April.
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