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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.
Constance Hospitality has been recognised in the 2026 Traveller Review Awards by Booking.com, with its Maldivian resorts achieving some of the highest scores within the group’s portfolio.
In the Maldives, Constance Halaveli Maldives received an outstanding score of 9.8 out of 10, while Constance Moofushi Maldives achieved 9.7. The ratings, based on verified guest reviews, reflect consistently high levels of guest satisfaction and service delivery.
Constance Halaveli Maldives, known for its spacious overwater and beachfront villas, personalised service and refined dining concepts, continues to perform strongly among travellers. Constance Moofushi Maldives, positioned as a barefoot chic resort with an all-inclusive concept, also maintains a high guest approval rating, supported by its diving experiences and relaxed island atmosphere.
While the wider Constance portfolio across the Indian Ocean was recognised, the Maldives properties stand out as the group’s highest-rated resorts in the 2026 awards cycle.
Commenting on the recognition, Jean-Jacques Vallet, Chief Executive Officer of Constance Hospitality, stated that the awards reflect the professionalism and commitment of the teams on the ground. He added that guest feedback remains central to maintaining service standards and delivering consistent experiences across the group’s destinations.
The recognition reinforces the position of Constance Halaveli Maldives and Constance Moofushi Maldives as leading performers within the Maldives’ competitive luxury hospitality sector.
Sun Siyam Resorts is marking the Lunar New Year across its Luxury, Privé and Lifestyle collections with a coordinated programme of cultural experiences, festive dining, music and family-focused activities from 15 to 20 February 2026. Celebrating the Year of the Horse, each resort’s programme reflects its individual character while embracing the spirit of renewal and togetherness associated with the season.
Siyam World – Lifestyle Collection
At Siyam World, Lunar New Year celebrations combine cultural heritage with contemporary island energy. A highlight of the programme is a live showcase featuring Chinese-inspired DJ sets paired with the traditional guzheng, creating a fusion of electronic rhythms and classical melody. Performances by the Chaozhou Shantou lion dance troupe add further cultural depth, with guests invited to observe, participate and learn traditional movements.
Sun Siyam Olhuveli – Lifestyle Collection
Sun Siyam Olhuveli is presenting a relaxed Lunar New Year programme shaped by traditional symbolism and island living. Throughout the week, the resort will host family-friendly cultural activities, traditional performances and live music. Red-themed décor and festive elements will set the tone, while dragon displays and cultural showcases bring movement to the island’s central spaces. The celebrations peak on 16 and 17 February with performances by DJ Slim Belghith, whose international sound will accompany evening festivities.
Sun Siyam Iru Veli – Privé Collection
At Sun Siyam Iru Veli, the Year of the Horse will be marked through a programme that combines cultural traditions with family-oriented experiences. The Kids Club will host themed activities including red envelope crafting, lantern making, zodiac-inspired art and traditional games. The Fire Horse Pool Party at Chemistry will bring families together with music and refreshments. Dining highlights include hot pot lunches and dinners, along with a dedicated Chinese section titled “Flavours of Fortune” at the Aqua Orange buffet. Guests may also enjoy seasonal spa treatments at Ocean Spa designed to promote balance and renewal.
Sun Siyam Vilu Reef – Privé Collection
Sun Siyam Vilu Reef will conclude its celebrations with a Grand Spring Gala Dinner featuring international cuisine alongside Chinese specialities. The evening includes a traditional lion dance performance, filling the island with movement and symbolic gestures intended to welcome prosperity and good fortune.
Sun Siyam Iru Fushi – Luxury Collection
At Sun Siyam Iru Fushi, Lunar New Year celebrations will blend Chinese traditions with Maldivian island experiences. Dining features include beachfront seafood platters, Blue Lobster barbecues and traditional hot pot dinners, complemented by chocolate, cheese and champagne tastings.
Younger guests may take part in dragon dance workshops and lantern painting sessions, while signature resort experiences such as Sunset Jet Car rides, Cinema by Moonlight on a private boat and floating breakfasts add further variety. Evening turndown moments incorporate local Maldivian touches, reflecting the resort’s approach to cultural exchange. With 15 dining venues, family-oriented villas and dedicated adults-only spaces, the resort’s programme is designed to accommodate a broad range of guests.
Commenting on the celebrations, Ahmed Naufal, Group Director of Business Development, noted that China remains an important market for Sun Siyam. He stated that the Lunar New Year celebrations provide an opportunity to honour Chinese traditions while delivering experiences consistent with the group’s standards of hospitality.
Across its Maldivian portfolio, Sun Siyam Resorts presents Lunar New Year as a season of cultural appreciation, shared celebration and renewal by the sea.
St. Regis Maldives Vommuli Resort has announced a partnership with LUX Tennis, strengthening the resort’s established tennis offering and introducing plans for a new padel court. The collaboration expands the resort’s active lifestyle programme, with a particular focus on families and multi-generational travel.
The St. Regis brand draws on the legacy of the Astor family, founders of the original St. Regis New York, whose Gilded Age lifestyle celebrated refined leisure and sporting pursuits. Tennis, in particular, became a symbol of elegance within the Astor social circle, reflecting a culture shaped by hospitality, recreation and sophistication. This heritage continues across the St. Regis portfolio today, where classic sports remain an integral part of the brand’s identity.
Set within the resort’s private island environment, the enhanced LUX Tennis programme is designed to elevate on-island tennis experiences for guests of all ages and skill levels. The programme features expert-led coaching, bespoke clinics and visiting residencies by internationally recognised professionals, offering guests opportunities to train, play and engage with elite talent in an accessible and inspiring setting.
Confirmed visiting professionals include Angelique Kerber, three-time Grand Slam champion and former world number one, who will visit from 29 to 31 March 2026, and Feliciano López, former Spanish champion with a career-high singles ranking of world number 12, scheduled from 16 to 17 May 2026.
The expanded tennis programme is designed to integrate seamlessly with island life, offering everything from relaxed family matches and junior-friendly coaching to more focused sessions for experienced players. Activities are structured to complement time spent at the beach, spa experiences and family dining.
The St. Regis Maldives Vommuli Resort features 77 beachfront and overwater villas, each with a private pool, alongside facilities such as the John Jacob Astor Estate, the largest overwater three-bedroom villa in the Maldives. Guests also have access to the award-winning Iridium Spa, six dining venues and a private yacht available for charter, reinforcing the resort’s positioning as a destination for both leisure and active pursuits.
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