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New algae species helps corals survive in the hottest reefs on the planet

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A new species of algae has been discovered in reef corals of the Persian (Arabian) Gulf that helps corals to survive seawater temperatures of up to 36°C – a temperature that would kill corals elsewhere.

Researchers from the University of Southampton and the New York University Abu Dhabi identified the symbiotic algae in corals from Abu Dhabi, United Arab Emirates, the world’s warmest coral reef habitat.

The paper, which reports the breakthrough discovery, is published in the journal Scientific Reports from where it can be freely accessed here.

“We found that commonly applied molecular methods did not give enough resolution to distinguish the dominant symbionts of Gulf corals from those in other parts of the world’s oceans,” explains Professor Jörg Wiedenmann, Professor of Biological Oceanography and Head of the Coral Reef Laboratory at the University of Southampton. “However, when analysed by alternative molecular biological approaches, we found pronounced differences that set this heat tolerant species clearly aside. We named it Symbiodinium thermophilum in reference to its ability to survive unusually high temperatures.”

Reefs are made up of many different coral species, most of which live in a mutually beneficial relationship with microscopically small algae hosted in their tissue. These symbiont algae produce sugars that contribute to the diet of the coral in return for shelter and nutrients that are vital for algal growth.

However, the symbiotic association is vulnerable to changes in environmental conditions, in particular to increases in seawater temperature. Heat-stress induced loss of the algal partners from the coral host can result in coral bleaching.

“Understanding how corals survive under the extreme temperatures in the Gulf will give us important insights into the ability of reef corals to handle the heat stress, which is threatening their survival in the oceans that are warming up in response to climate change,” said Professor Wiedenmann.

“We monitored the symbiotic partnership over several seasons to ensure that this association was stable through a range of thermal conditions,” comments Professor John Burt from the New York University Abu Dhabi. “We can confirm that this new type of alga is indeed the year-round prevalent symbiont across several dominant coral species from the Abu Dhabi coast of the United Arab Emirates.”

“It gives hope to find that corals have more ways to adjust to stressful environmental conditions than we had previously thought,” adds Professor Wiedenmann. “However, it is not only heat that troubles coral reefs. Pollution and nutrient enrichment, overfishing and coastal development also represent severe threats to their survival. Only if we manage to reduce these different forms of stress will corals be able to benefit from their capacity to adjust to climate change.”

 

Source: www.southampton.ac.uk

Marine Life & Conservation

Jeff chats to… Veronica Cowley, a contestant in the See You at the Sea Festival Film Competition (Watch Video)

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In this exclusive Zoom interview, Jeff Goodman, Scubaverse Editor-at-large, chats to Veronica Cowley, a contestant in the See You at the Sea Festival Film Competition. The See you at the Sea Festival was an online film festival created by young people, for young people.

Veronica’s film – Worse things Happen at Sea – can be seen here:

Sixth and final in a series of six videos about the competition. Watch the first video HERE with Jenn Sandiford – Youth Engagement Officer with the Your Shore Beach Rangers Project and the Cornwall Wildlife Trust – to find out more about the Competition. Each day this week will be sharing one video in which Jeff talks with the young contestants about their films and what inspired them.


For more information please visit:

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Peli proud to support COVID-19 vaccine distribution

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We know Peli from its popular camera cases, but from discovery to distribution, Peli’s temperature-controlled packaging is now delivering COVID-19 vaccines all over Europe and the Middle East

With the pandemic recovery just underway, COVID-19 vaccines and therapies are rapidly becoming available for use and they must be safely distributed worldwide, within their required temperature range. Peli’s BioThermal™ division is providing temperature-controlled packaging to meet this critical moment, protecting these crucial payloads.

Peli’s innovative cold chain packaging has been trusted for nearly 20 years by pharmaceutical manufacturers to safely ship their life-saving products around the world. To meet the current challenge, they have adapted their existing products to provide deep frozen temperatures when required for the newly developed life sciences materials. Current and new offerings will ensure the cold chain is maintained throughout the vaccine or therapy’s journey, maximising efficacy and patient health.

“We know that pharmaceutical companies are in all phases of the development process for vaccines and therapeutics and working tirelessly to bring safe and effective drug products to market quickly,” said Greg Wheatley, Vice President of Worldwide New Product Development and Engineering at Peli BioThermal. “Our engineering team matched this urgency to ensure they have the correct temperature-controlled packaging to meet them where they’re at in drug development for the pandemic recovery, from discovery to distribution.”

Peli BioThermal’s deep frozen products use phase change material (PCM) and dry ice systems to provide frozen payload protection with durations from 72 hours to 144+ hours. Payload capacities range from 1 to 96 litres for parcel shippers and 140 to 1,686 litres for pallet shippers.

New deep-frozen solutions are ideal for short-term vaccine storage, redirect courier transport of vaccines from freezer farm hubs to immunisation locations and daily vaccine replenishment to remote and rural areas.

Peli BioThermal temperature-controlled packaging is currently being used to distribute COVID-19 vaccines and therapeutics, either directly or through global transportation providers, in Denmark, France, Italy, Germany, Spain, Sweden, and the UK as well as in Kuwait and Saudi Arabia in the Middle East, with more countries set to join the list as the pandemic recovery process rolls out.

To learn more about the wide range of deep frozen Peli BioThermal shippers, visit Peli.com and PeliBioThermal.com for more information.

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