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Researchers in Maldives obtain first ever underwater ultrasound scans of wild reef manta rays
A team of international researchers working with Six Senses Laamu in Maldives has obtained the first ever underwater ultrasound scans of wild reef manta rays.
The team of researchers from the University of Cambridge and the Manta Trust worked together with the Maldives Underwater Initiative (MUI) at Six Senses Laamu resort in the unexplored Laamu atoll to successfully scan a pregnant wild reef manta ray underwater to obtain clear ultrasound images of her foetus, using the world’s first contactless underwater ultrasound scanner.
Two years ago, MUI brought together some of the great minds in veterinary technology and challenged them to create a device that could ultrasound scan Laamu atoll’s resident population of reef manta rays (Mobula alfredi).
“MUI aims to be a marine conservation visionary,” Marteyne van Well, the General Manager at Six Senses Laamu, was quoted in a statement issued by Six Senses, saying.
“One of the ways we’re leading conservation efforts in the Maldives is by providing a platform for discussions on, and the field testing of, this world-first technology.”
Following a visit to Six Senses Laamu, Vetsonic (UK) Ltd Founder Ray Rochester approached veterinary imaging leaders IMV Imaging with the idea of developing a scanner to meet the rigours of diving at Manta Point, a manta ray cleaning station just a 10-minute boat ride from the resort that researchers from the Manta Trust have been studying since 2014.
IMV Imaging’s Duo-Scan:Go Oceanic is the first ever technology to allow contactless scanning of wild marine animals at depths of up to 98.5 feet (30 metres), whilst also being portable (the dive rig weighs less than 4.5 pounds (2 kilograms). The aim of bringing this technology to Laamu was to scan wild pregnant reef manta rays in order to study gestation and embryonic development.
“We know very little about where these reef manta rays go to give birth and how long gestation lasts in the wild. This ultrasound technology could allow us to determine rates of reproduction in the wild and this information would help guide conservation strategies for this threatened species,” Nicole Pelletier, Manta Trust Project Manager at Six Senses Laamu, said.
The research project is taking place in Maldives, which has the largest population of reef manta rays in the world. The team hopes that their work will help establish the factors responsible for annual fluctuations in breeding and discover why animals breed in certain areas but not others.
Manta rays are close relatives of sharks and rays. The largest individuals can reach as many as seven meters in width and weigh up to two tonnes. However, despite their size, and compared to some of their close relatives, mantas are gentle creatures.
Mantas are found throughout the tropical and sub-tropical oceans of the world. The animals never stop moving, as they must keep water flowing over their gills to respire. Their daily and seasonal movements are tuned to the ebb and flow of the ocean currents that carry the planktonic food upon which they depend.
“Manta rays are one of the most beautiful and iconic creatures that swim in our oceans,” Dr Gareth Pearce, from the Department of Veterinary Medicine at the University of Cambridge, was quoted in a statement issued by Manta Trust, as saying.
“Unfortunately, like many animals, their future is threatened. They are increasingly fished, both deliberately and through bycatch and their populations are now at risk.”
In recent years, manta ray populations have become threatened through bycatch in fisheries targeting other species, such as tuna and swordfish, but also because their gill plates have recently become sought after for use in Asian medicine.
Working with the Manta Trust, Dr Pearce and PhD student Niv Froman use the new ‘Duo-Scan: Go Oceanic’ ultrasound scanner to study the reproductive ecology of manta rays. To scan the manta rays, researchers dive down to a ‘cleaning station’ where smaller fish remove parasites from the mantas’ skin. These stations are typically 20-30 metres down, often with poor visibility and potentially strong ocean currents.
The diver then approaches a manta from above to avoid disturbing the animal. He positions the scanner 4-5cm above the surface of the manta, targeting the left side of the dorsal fin, which is where the reproductive structures such as the ovaries and the uterus are visible.
“It’s important not to cause the manta ray any stress,” Froman explained.
“Using these portable scanners, we’re able to obtain ultrasound images of their internal structures, particularly their reproductive tracts, without disturbing the animal. This is the first time that this has been possible in free-swimming mantas.”
The scanner enabled the team to obtain the first-ever scans of wild reef manta rays, including pregnant and non-pregnant females, as well as mature males.
“Using the scans, we’re able to determine the stages of maturity and when animals are becoming reproductively active. We can observe the stages of pregnancy, the development of the foetus and importantly, whether an animal maintains that pregnancy and gives birth to a live animal,” Dr Pearce said.
“Ultimately, our work aims to inform the conservation of manta rays both in the Maldives and other areas of the world, enabling the populations to survive and hopefully flourish. Our hope is that this research project will contribute to conserving the species for future generations.”
Sightings of the animals in the Maldives are reliable and consistent, allowing the researchers to take images of the same animal multiple times throughout its gestational period, which lasts just over a year.
“When the project began, none of the team knew whether scanning wild reef manta rays would even be possible. What has been achieved is beyond what we could have hoped for,” Dr Guy Stevens, Co-Founder and Chief Executive of the Manta Trust, said.
“Manta rays are threatened worldwide and we still know so little about their reproductive strategies. The ability to scan pregnant individuals will be invaluable in our quest to protect them.”
According to IMV-imaging, the ‘Duo-Scan: Go Oceanic’ represents significant improvements on previous technologies. It can be taken to depths of up to 30 meters and —with the assistance of Wi-Fi and a smartphone as a viewing screen—it is small enough to fit in the palm of your hand.
“What we are really excited about is the contactless nature of this technology. There are significant benefits for animal welfare, but you also open up a whole range of possible applications if you can scan animals that ordinarily wouldn’t let you get close enough to touch them,” Alan Picken, Chief Executive of IMV-imaging, said.
The Cambridge researchers, in collaboration with a team from the Manta Trust, verified that the contactless technology works in the field tests carried out in collaboration with the Vetsonic (UK) Ltd and Six Senses Laamu.
Centara Hotels & Resorts, Thailand’s leading hotel operator, is preparing for the launch of Centara Grand Lagoon Maldives, a serene island retreat set to open on April 1st. To commemorate the opening, the resort is offering an exclusive introductory promotion, allowing guests to enjoy a luxurious escape with a range of benefits. The special offer includes Stay 4, Pay 3 and Stay 7, Pay 5 packages, along with exceptional upgrades available for a limited time.
Centara Grand Lagoon Maldives is the final addition to Centara’s collection of four distinctive properties in the Maldives, each tailored to different traveller preferences. The resort features 142 elegantly designed beachfront and overwater accommodations that harmonise with the surrounding natural beauty. This private island sanctuary seamlessly merges Thai-inspired hospitality with Maldivian charm, offering world-class dining across multiple restaurants and bars, as well as revitalising wellness experiences at the Spa Cenvaree Retreat.
The opening of this property also marks the completion of The Atollia by Centara Hotels & Resorts, a visionary project that aims to redefine experiential travel in the Maldives. As part of this exclusive multi-island destination, Centara Grand Lagoon Maldives offers refined tranquility combined with immersive experiences. Guests staying at the resort also have access to the exciting water attractions and vibrant amenities of the neighbouring Centara Mirage Lagoon Maldives.
Andrew Jansson, Cluster General Manager of Centara Grand Lagoon Maldives & Centara Mirage Lagoon Maldives, expressed enthusiasm about the upcoming opening, stating, “From our picturesque beachfront and overwater villas to our exquisite dining and holistic wellness journeys, our team has worked tirelessly to ensure every aspect of this magnificent property exceeds expectations. We look forward to offering travellers a truly distinctive experience that captures the essence of both Centara’s signature warm hospitality and the beauty of this Maldivian paradise.”
To celebrate the grand opening, Centara Hotels & Resorts is inviting guests to take advantage of the Grand Island Indulgence: Exclusive Introductory Offer. Bookings made before June 30th, 2025, for stays between April 1st and October 15th, 2025, will qualify for the Stay 4, Pay 3 or Stay 7, Pay 5 packages. The offer also includes meal plan upgrades, complimentary sparkling wine and couples’ massages, exclusive access to The Club, a choice of an ocean excursion, and additional perks for CentaraThe1 members.
Beyond the well-known winter appeal of the Maldives lies an underrated gem—summer. From May to October, the islands transform into a sanctuary of intimate escapes, breathtaking marine encounters, and uninterrupted tranquillity, offering a side of the Maldives that remains one of travel’s best-kept secrets. This year, Cinnamon Hotels & Resorts invites travellers to rediscover summer in the Maldives through curated experiences across its four island resorts, each tailored to romance, diving, adventure, and relaxation.
Cinnamon Hakuraa Huraa Maldives provides an ideal setting for couples seeking a romantic summer retreat. Overwater bungalows offer a tranquil atmosphere, where the gentle lapping of waves sets a soothing rhythm for the days ahead. For those desiring an exclusive adults-only escape, Platinum Island offers elevated privacy and sophistication, creating the perfect environment for seclusion. As the sun sets, private sandbank dinners and candlelit beachside feasts transform ordinary moments into unforgettable memories.
For diving enthusiasts, Ellaidhoo Maldives by Cinnamon offers an unparalleled underwater experience. Home to one of the Maldives’ most vibrant house reefs and in close proximity to iconic dive sites, Ellaidhoo provides exceptional opportunities for marine exploration. Divers can witness the Maldives’ marine life in its full splendour, and encounters with Tripod, the island’s beloved three-finned turtle, add a unique charm to every dive. Whether exploring the legendary house reef or venturing to sites such as Fish Head and Maaya Thila, every descent promises an awe-inspiring glimpse into the ocean’s wonders.
Cinnamon Dhonveli Maldives serves as the ultimate summer playground for thrill-seekers, where the ocean’s energy meets endless opportunities for adventure. Home to the world-renowned surf break, Pasta Point, the island attracts seasoned surfers eager to ride its perfectly peeling waves. Beyond surfing, the resort offers an array of exhilarating water sports, including jet skiing, wakeboarding, paddleboarding, and windsurfing, ensuring every adrenaline-seeker finds an activity suited to their passion. Whether carving through the waves or speeding across crystal-clear waters, Cinnamon Dhonveli Maldives encapsulates the thrill of ocean adventure.
Cinnamon Velifushi Maldives redefines summer living, blending stylish beachfront retreats with effortless indulgence. Days unfold at a leisurely pace, with sun-drenched afternoons by the infinity pool, gourmet dining that highlights the flavours of the sea, revitalising spa treatments, and sunrise yoga sessions designed to awaken the senses. Whether savouring exquisitely crafted dishes, indulging in personalised wellness experiences, or simply embracing the island’s serenity, Velifushi offers an escape where time slows down, allowing guests to immerse themselves in the art of island living.
Far from the winter crowds, summer in the Maldives reveals a season of untold beauty, where the rhythm of the waves sets the pace for unforgettable experiences. Whether diving into vibrant marine ecosystems, embracing barefoot luxury, or savoring moments of pure tranquillity, Cinnamon Hotels & Resorts Maldives welcomes travellers to uncover one of the islands’ best-kept secrets
Danish chef Wassim Hallal will be hosting an exclusive residency at Soneva Fushi’s Flying Sauces from March 17 to May 12, 2025, bringing his two-Michelin-starred restaurant, Frederikshøj, to the world’s first fine dining zipline experience. As spring unfolds in the Maldives, guests will have the opportunity to soar along a 200-meter zipline route to reach an elevated dining platform, where breathtaking views, intuitive service, and Hallal’s masterful culinary creations await.
A pioneer of modern Nordic cuisine, Hallal’s passion for gastronomy has driven him to redefine fine dining in Denmark. His culinary journey began at a young age, leading him to refine his craft in some of Europe’s most prestigious kitchens. Under his leadership, Frederikshøj in Aarhus has earned two Michelin stars, recognized for its innovative approach, precision, and use of the finest seasonal ingredients.
During his highly anticipated spring residency at Soneva Fushi, Hallal will bring the essence of Frederikshøj to the Maldives, offering an unforgettable tasting experience that merges contemporary Nordic techniques with the island’s exceptional organic produce. His culinary philosophy pays tribute to the natural world, shaped by his environment and the evolving landscape of modern gastronomy. His style masterfully balances the refinement of French haute cuisine with the boundary-pushing creativity of New Nordic cooking, infused with global influences that drive his innovation.
At Frederikshøj, his commitment to excellence is evident in the meticulous selection of the finest local ingredients. A true culinary craftsman, he embraces experimentation, constantly redefining flavour, texture, and technique to create dishes that leave a lasting impression. Each plate serves as a canvas—an expression of creativity, refinement, and evolution—always seeking to push the boundaries of what is possible.
While in the Maldives, Hallal and his team will seamlessly blend Frederikshøj’s distinctive culinary ethos with Soneva Fushi’s organic seasonal produce, crafting a two-Michelin-starred dining experience designed to surprise, delight, and linger in the memories of guests long after the final course.
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