Sharks have long captivated human imagination, embodying both the mystery and majesty of the ocean's depths. Beyond their portrayal in popular media, these ancient creatures play a pivotal role in maintaining marine ecosystem balance.
The Ampullae of Lorenzini: Sharks' Sixth SenseOne of the most remarkable adaptations in sharks is the presence of the ampullae of Lorenzini. These specialized electroreceptors, located primarily on the shark's head, allow them to detect minute electrical fields produced by the muscle contractions of potential prey. This capability enables sharks to locate hidden or camouflaged animals beneath the ocean floor. Additionally, these receptors assist in navigation by sensing the Earth's magnetic fields, guiding sharks across vast oceanic expanses.
Take the Dive Further □Discover an exclusive selection of fine art shark photographs. Each print is signed, gallery-quality, and carefully shipped from the studio. Explore the Collection →
Guadalupe Island: A Premier Destination for Shark EncountersSituated off the coast of Mexico, Guadalupe Island has emerged as a premier location for observing great white sharks in their natural habitat. The island's clear waters provide an ideal setting for cage diving, offering enthusiasts an up-close experience with these apex predators. However, interactions must be conducted responsibly. Incidents have occurred where sharks, attracted by bait, have become entangled in diving cages, underscoring the need for ethical wildlife tourism practices that prioritize the well-being of both sharks and divers. (National Geographic)
The Global Status of Sharks: A Species in PerilDespite their vital role in marine ecosystems, sharks face unprecedented threats worldwide. Overfishing, driven by demand for shark fins, meat, and liver oil, has decimated many populations. Bycatch—where sharks are unintentionally caught in fishing nets—further exacerbates their decline. According to the International Union for Conservation of Nature (IUCN), over one-third of shark species are now endangered or threatened with extinction. Additionally, habitat degradation, climate change, and negative public perception contribute to their struggles. Conservation initiatives, including marine protected areas, fishing regulations, and public awareness campaigns, are essential to safeguarding the future of these incredible predators.
Did you know?
When Steven Spielberg released Jaws in 1975, the film became a worldwide phenomenon — but it also fueled fear of sharks. In the following years, thousands of sharks were killed out of panic or sport. Spielberg later admitted he regretted the unintended impact of his movie on shark populations, recognizing that sharks play a crucial role in the ocean’s balance.
Top Destinations for Shark DivingFor those seeking unforgettable encounters with sharks, the following locations offer some of the most spectacular diving experiences:
Sharks are not just fearsome predators; they are essential to the health of our oceans. Protecting them ensures the stability of marine ecosystems and preserves one of the most awe-inspiring spectacles of the natural world. Shark Conservation – Frequently Asked QuestionsWhy are sharks important for the ocean?Sharks regulate marine ecosystems by controlling prey populations and maintaining balance. Without them, fish stocks collapse, coral reefs decline, and entire ecosystems are destabilized. Are sharks endangered?Yes. According to the IUCN Red List, over one third of shark and ray species are threatened with extinction due to overfishing, finning, and habitat destruction. What impact did the movie Jaws have on sharks?Steven Spielberg admitted that Jaws unintentionally fueled global shark fear. The film popularized the image of sharks as monsters, leading to decades of culls and a cultural acceptance of their killing. Today, conservationists work to reverse that narrative and highlight sharks as essential guardians of the ocean. How can we protect sharks?By supporting shark sanctuaries, banning finning, promoting responsible ecotourism, and raising awareness about their ecological role. Individual choices—like avoiding shark fin soup—also make a difference. More species
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Green turtle just below the surface of Mayotte lagoon in the early morning
Mayotte, a small jewel in the Indian Ocean, is a marine sanctuary where underwater life thrives in all its splendor. Among its most iconic inhabitants, the green sea turtles (Chelonia mydas) stand out with their majestic beauty and their crucial role in maintaining the ecological balance of coral reefs. In this article, let's dive into the fascinating world of these marine creatures and explore why Mayotte is such an essential stopover for their survival. 
Green turtles swimming in the blue of Mayotte lagoon
A Prime Nesting Ground
The beaches of Mayotte welcome thousands of green sea turtles each year, coming ashore to lay their eggs. These marine turtles travel thousands of kilometers to return to the beaches of their birth, a phenomenon known as natal homing. This migration, which can take several years, remains one of the greatest mysteries of marine biology. The nesting period extends from November to March, when the turtles come ashore on the island’s fine sandy beaches to lay their eggs. After digging a nest, they deposit between 100 and 200 eggs, which they carefully bury before heading back to the sea, leaving the embryos to develop under the warmth of the sand. Once the eggs hatch, the tiny turtles, fragile and vulnerable, face numerous dangers, but many will make their way to the nourishing waters, where they will spend several years before returning themselves.
Green Sea Turtles and Their Ecological
RoleGreen sea turtles play a vital role in maintaining the health of marine ecosystems, especially coral reefs. Their feeding habits mainly consist of seagrasses, aquatic plants found on sandy and rocky bottoms. By grazing on these seagrasses, turtles help regulate their growth, allowing these thriving ecosystems to remain healthy. Seagrass meadows are crucial habitats for many marine species, providing food and shelter for young fish and other marine life. By maintaining the balance of these meadows, turtles indirectly foster marine biodiversity, creating a more stable environment for other underwater creatures. 
To the deep blue of Mayotte lagoon
A 50 Million Year Journey
Green sea turtles have existed for over 50 million years, surviving through the ages with remarkable resilience. Their bodies, perfectly adapted for marine life, allow them to swim great distances with ease. Their flattened, rigid shells act as the ultimate defense against predators, while their flipper-like limbs propel them gracefully through the water. These turtles can travel thousands of kilometers in open waters, often at depths where they feed on aquatic plants. Yet, despite their great endurance, these marine reptiles face numerous threats. Climate change, plastic pollution, and the destruction of their natural habitats are constant dangers that threaten their survival. Keep the Connection AliveExplore a curated selection of fine art turtle photographs from Mayotte and beyond. Each print is signed, printed on gallery-grade paper, and shipped with care. Explore the Collection →
A juvénile green turtle on the beach of Saziley Mayotte
Threats and Conservation: A Fight for Survival
While Mayotte provides an ideal environment for green sea turtle nesting, these creatures face numerous threats. Uncontrolled tourism development, accidental entanglements in fishing nets, and marine pollution are all challenges to their population. The consumption of turtles by humans in some cultures also represents a significant threat. One of the most alarming threats comes from climate change. Rising global temperatures directly affect the sex of the turtles. The sex of sea turtles, including green turtles, is determined by the temperature of the sand where their eggs are incubated. Warmer temperatures favor the birth of females, while cooler temperatures produce males. If global warming continues, it could lead to a significant imbalance in turtle populations, with a predominance of females and a shortage of males, which would jeopardize reproduction and the survival of the species. However, efforts are being made to protect these magnificent creatures. Conservation programs, such as monitoring nesting beaches and establishing marine sanctuaries, have been launched to safeguard turtles and their habitats. Awareness campaigns are also being conducted among local communities and visitors to reduce the impact of human activity on these vulnerable animals. 
Breath, a green turtle going to the surface of Mayotte lagoon.
Conclusion: Preserving the Ocean’s Beauty
Green sea turtles of Mayotte are more than just a tourist attraction or a biological wonder. They are the sentinels of a fragile ecosystem that, like them, is struggling for survival. Their protection depends on collective awareness and ongoing conservation efforts to ensure that future generations can also marvel at the beauty of these iconic marine creatures. By protecting Mayotte’s turtles and their habitat, we are contributing to the preservation of the island’s marine wealth and maintaining the balance of the Indian Ocean. Through their eyes, we can see the urgency of protecting what remains of our planet, because, just like these turtles, the Earth itself is in peril. FAQ – Conservation of Green Sea TurtlesWhy are green sea turtles endangered?They face bycatch, poaching and egg harvesting, plastic pollution, boat strikes, and habitat loss. Climate change warms nesting sands, which skews hatchling sex ratios and lowers survival. What conservation efforts exist in Mayotte?Local NGO Oulanga Na Nyamba monitors nesting beaches, rescues stranded turtles, and runs education with communities and schools across the island. How can divers and tourists help protect turtles?Keep respectful distance, never touch or chase, avoid blocking access to the surface or resting spots, reduce plastic use, and support local conservation projects. What is the IUCN status of green sea turtles?Globally Endangered on the IUCN Red List (Chelonia mydas). Regional populations may face different levels of risk depending on local pressures. What should I do if I find a stranded or injured turtle in Mayotte?Keep people away, note the exact location and time, and contact local authorities or Oulanga Na Nyamba. Do not drag the turtle or push it back to sea. 
The Invasion of the Lionfish: A Silent Marine Crisis
The lionfish (Pterois volitans and Pterois miles), with its striking red and white stripes and venomous spines, is a stunning yet destructive predator wreaking havoc in the Atlantic Ocean and the Caribbean Sea. Native to the Indo-Pacific, this species was introduced to non-native waters through the aquarium trade, with the first recorded sightings in Florida in the 1980s. Since then, lionfish populations have exploded, threatening coral reef ecosystems and the economic livelihoods dependent on them. 
A Relentless Predator with No Natural Enemies
Lionfish are voracious hunters, consuming a wide variety of marine species, including shrimp, juvenile fish, and commercially important species like snapper and grouper. With no natural predators in their invaded habitats, they have multiplied at an alarming rate. Studies have shown that a single lionfish can reduce the population of native reef fish by up to 79% in just five weeks, disrupting the delicate balance of marine ecosystems. The lionfish is a formidable predator that consumes about 10 to 20% of its body weight daily. On average, an adult lionfish weighs between 1 to 2 kg. Therefore, a 1.5 kg lionfish would eat between 150 to 300 grams of food each day, primarily small fish and crustaceans. This voracious appetite, combined with its ability to invade large marine areas, has made the lionfish an invasive species, disrupting ecosystems, especially in the Caribbean and Indo-Pacific regions. Lionfish reproduction is indeed rapid and produces a large number of eggs. Females can lay up to 30,000 eggs per reproductive cycle, and they can spawn every 4 to 6 days throughout the year under optimal conditions. This ability to produce large quantities of eggs, combined with their rapid reproduction rate, allows lionfish populations to multiply quickly. This contributes to their spread into new habitats, exacerbating their ecological impact. Due to their prolific reproduction and the absence of natural predators in many regions where they have been introduced, lionfish become a major problem for marine ecosystems.
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The Economic and Environmental Cost of the Lionfish Invasion :
The unchecked spread of lionfish poses severe ecological and economic threats:
Lionfish and Climate Change: A New Threat in the Mediterranean
Traditionally confined to warm waters, lionfish have recently been observed in the Mediterranean Sea, a phenomenon linked to rising sea temperatures due to climate change. The warming of the Mediterranean has created a more hospitable environment for this invasive species, allowing it to spread rapidly. This expansion poses a new ecological threat, as lionfish prey on native Mediterranean species that have not evolved defenses against them. The arrival of lionfish in this region further underscores the far-reaching consequences of climate change on marine biodiversity. 
Innovative Solutions to Control the Invasion :
Efforts to manage lionfish populations have led to creative and effective strategies
A Call for Conservation Action
Addressing the lionfish invasion requires a collaborative effort among governments, scientists, conservation organizations, and local communities. Public awareness campaigns, research funding, and policy changes supporting sustainable fishing practices are crucial in mitigating the ecological and economic damage caused by this invasive species. The battle against the lionfish invasion is ongoing, but with innovative solutions and continued dedication, we can protect vital marine ecosystems and preserve the biodiversity of our oceans for future generations. TL;DR — Lionfish InvasionLionfish (Pterois volitans, P. miles) are Indo-Pacific predators that have become invasive across the Western Atlantic, Caribbean, Gulf of Mexico, and Mediterranean. With no natural predators, they reproduce year-round, predate on juvenile reef fish, and disrupt reef balance. Management includes regular culling, spearfishing derbies, promoting consumption, and citizen science reporting. Their venomous spines are dangerous, though the flesh is safe if prepared correctly. FAQ – The Lionfish InvasionWhy are lionfish invasive outside their native range?
Lionfish (Pterois volitans, P. miles) reproduce quickly, spawn year-round, and lack natural predators in the Atlantic and Mediterranean. Their venomous spines deter predation, allowing populations to expand unchecked.
Where have lionfish spread?
They have colonised the Western Atlantic, Caribbean, Gulf of Mexico, and are spreading in the Mediterranean through migration via the Suez Canal (Lessepsian migration).
What ecological damage do lionfish cause?
Lionfish consume over 50 reef fish species, reduce juvenile fish biomass, suppress herbivores, and destabilise coral reef resilience, leading to algal overgrowth and lowered recovery from bleaching.
How can lionfish populations be controlled?
Through regular culling and spearfishing derbies, encouraging consumption (“Eat Lionfish”), and citizen science reporting. Continuous pressure is essential; one-off events are insufficient.
Are lionfish dangerous to humans?
Their spines are venomous and can cause painful stings. Hot-water immersion helps relieve pain and medical care is recommended. The flesh is safe to eat once filleted properly.
Chasing the Wild: The Ethics of Dolphin Tourism and the Role of Photography in Conservation3/29/2025  Around 4 years to be accepted and get this close face to face The sun rises over the turquoise waters of Zanzibar, casting golden hues on the ocean's surface. Small wooden fishing boats, packed with tourists, speed towards a pod of dolphins. Excited voices, camera shutters, and the splash of hurried snorkelers disturb the morning calm. This scene, played out daily, is a stark reminder of how human fascination with marine life often comes at a cost. Recent documentaries have shed light on the uncontrolled pressure that dolphin populations in Zanzibar endure due to mass tourism. Swimmers chase them, boats corner them, and respect for their natural behavior is often disregarded. It is easy to condemn such practices, to label them as reckless or damaging. But in a world where marine life is increasingly under threat, are these encounters always the worst alternative? If not for tourism, would these same dolphins face an even darker fate—hunted for food, captured for aquariums, or turned into aphrodisiac powders, as is the case in parts of Asia? Selective Outrage: A Double Standard in Wildlife Reporting This issue extends beyond Zanzibar. If a TV network chooses to expose the human impact on marine wildlife, shouldn’t it also hold a mirror to other problematic practices elsewhere? Madagascar, for example, has a booming whale shark tourism industry. While some operators respect the animals, others encourage behavior that disrupts their natural movements. In French Polynesia, divers routinely make contact with bottlenose dolphins in Rangiroa, yet these interactions rarely spark media outrage. The question then arises: why are some forms of wildlife tourism vilified while others are glamorized? And why does mainstream media choose to highlight some issues while remaining silent on others?  Kind of things you see in French Polynesia.... The Instagram Effect: When Nature Becomes a Trophy Social media has fueled the desire for up-close, dramatic encounters with wildlife. For many, the goal is no longer the experience itself but the validation that comes with posting it online. Whether it's tourists chasing dolphins for the perfect selfie or divers pushing ethical boundaries for an award-winning shot, the ocean is often reduced to a backdrop for human ego. The truth is, no documentary will stop irresponsible tourists from doing whatever it takes for a viral moment. A Photographer’s Reflection: Ethics in Marine Photography Watching these reports, I can't help but reflect on my own journey as an underwater photographer. Why do I take these images? For likes? For recognition? No. I capture the ocean’s beauty to share its wonders, to tell its story, and to remind people why it deserves protection. The joy for me is not in the instant gratification of an image but in the hours spent observing, waiting, and earning the trust of marine life. In Mayotte, I have the privilege of stepping into the ocean at dawn, swimming out from the shore, and simply waiting. I don’t chase animals—they come to me. Whether it's dolphins, turtles, or sharks, every approach is deliberate, respectful, and based on an understanding of their behavior. Over time, I have even learned to mimic certain movements—a circular swim pattern to communicate with turtles, subtle fin movements to signal to dolphins that I am not a threat. These techniques take patience and commitment, something a rushed tourist encounter will never replicate.  Is it the best way to appreciate the moment ? The Race for the Perfect Shot: When Photography Becomes Exploitation Beyond tourism, there is another conversation to be had—one about the pressure of wildlife photography competitions. In an industry that rewards the most striking, rare, and sensational images, photographers are sometimes tempted to cross ethical lines. Should an image of a dolphin staring directly into the lens be celebrated if it was only achieved by disturbing the animal? Should we admire a close-up of a whale shark if it was obtained by a diver who got too close? These are difficult questions, and perhaps ones best left for another article.
Using Photography to Support Conservation Efforts Photography has the power to go beyond simple aesthetic appeal and can play a vital role in conservation efforts. As photographers, we have the opportunity to make our work useful by collaborating with associations and scientists who are dedicated to protecting the natural world. One powerful example is my friend Nils, who works with the Manta Trust to photograph manta rays for identification purposes. Each photo becomes a valuable data point, helping the organization track and catalogue manta populations based on their geographic location. This kind of collaboration ensures that our passion for underwater photography serves a greater purpose. Instead of focusing solely on capturing the perfect shot to post on social media, we can choose to be more intentional and thoughtful about how our images are used. By connecting with conservation organizations and offering our skills for scientific documentation, we can make a meaningful difference. Let’s use our art to support research, raise awareness, and ultimately contribute to the preservation of marine life. The Story Behind a Whale Photo A few years ago, I was alone in the lagoon of Mayotte when I took a photo of a humpback whale. No one else was there—just me, the ocean, and this giant of the sea gliding peacefully through the crystal-clear waters. It was a rare moment, one of those encounters that stays with you forever. Later, I sold that image through a stock photography agency. And sometime after, I found out that my photo—taken in Mayotte—had been used in a promotional booklet for whale-watching tourism... in Madagascar. The irony wasn’t lost on me. This is the paradox of wildlife photography. You can capture an image with the utmost respect, yet once it’s out in the world, it can be repurposed, reshaped, and sometimes even used to promote practices that contradict your own ethics. That experience reinforced an important lesson: as photographers, we don’t just take pictures. We shape narratives. We influence perceptions. And that comes with responsibility.  Whale from Mayotte find on Madagascar Ads.... The Responsibility of Wildlife Photographers and Conservationists
There’s another discussion to be had here—about the role of photography competitions and the increasing drive for more sensational images. But that’s a topic for another day. For now, my message is this: respect nature. Leave your GoPro aside and simply enjoy the moment, not for the likes, but for yourself. The most valuable memories are the ones you carry in your soul, not the ones you post online. If you truly want to make a difference, go beyond fleeting experiences. Commit yourself to real conservation. Make it your profession. Follow ethical guidelines. And if you want to expose human impact on wildlife, be thorough—tell the full story, not just the convenient parts. Because in the end, the most powerful legacy we can leave is in the awe of future generations—the wonder in their voices when they say, “I want this to last. I want my children to see what I have seen.” Otherwise, don’t pretend to be a conservationist. Be one. Coral Bleaching — Causes, Effects & How to Protect ReefsCoral bleaching happens when corals lose their symbiotic algae under heat stress. This weakens reefs, threatens marine life, and harms coastal communities. Learn the main causes (including El Niño), the impacts, and what works to protect reefs. 
Coral reefs, often referred to as the "rainforests of the sea," are among the most diverse and vital ecosystems on the planet. These living structures, formed by colonies of corals secreting calcium carbonate, host an incredible variety of marine life. More than just underwater decorations, corals play a crucial role in the health of the oceans by providing habitat for thousands of marine species, protecting coastlines from erosion, and supporting fishing and tourism, which are vital sources of income for many coastal communities.
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What are Corals and Their Role in the Marine Ecosystem?
Corals are marine animals belonging to the class Cnidaria, closely related to jellyfish and sea anemones. They live primarily in warm, clear waters of the tropics, forming reefs that can stretch for hundreds of kilometers. Their role in the marine ecosystem is multifaceted. They serve as a refuge and breeding ground for a wide range of marine creatures, including fish, crustaceans, and mollusks. Coral reefs also act as natural barriers, reducing the strength of waves and protecting shorelines from storms and erosion. Beyond their ecological role, corals contribute to marine biodiversity. Their ability to recycle nutrients and maintain ecological balance in marine environments is essential for the survival of many marine organisms. Coral reefs are, therefore, both centers of biodiversity and crucial environmental regulators for the stability of ocean ecosystems. 
El Niño, Coral Bleaching, and the Climate Crisis
However, these fragile structures are now threatened by both natural and human-induced factors, with the most alarming being the impact of ocean warming. One of the most devastating effects of warming is coral bleaching, a phenomenon where corals expel the symbiotic algae (zooxanthellae) that live inside their tissues. These algae provide the majority of the coral's energy through photosynthesis. Without them, corals turn white, become weakened, and struggle to survive without external intervention. The El Niño phenomenon, which causes temporary ocean warming, exacerbates this issue. During these climatic events, water temperatures can rise significantly, causing intense thermal stress for corals. As a result, coral reefs can suffer severe damage, losing much of their biodiversity and impacting local populations that rely on the health of these ecosystems.
Key facts — Coral bleaching
What Are Scientists Doing to Combat Coral Bleaching?
In the face of this crisis, scientists worldwide are working tirelessly to save coral reefs. Their approach combines laboratory research, field monitoring, and innovative strategies for reef restoration. One promising solution is coral breeding in laboratories. Researchers have developed methods to cultivate heat-resistant corals. By crossbreeding different coral species or exposing larvae to higher temperatures, they hope to create corals that are more resilient and capable of surviving in warmer waters. These corals can then be transplanted into declining reefs as part of restoration programs. Scientists also monitor reef conditions in real-time, using underwater sensors to measure water temperature and coral health. This data allows for rapid alerts to authorities and local communities, enabling protective measures, such as marine protected areas or activity restrictions, to be implemented. On a global scale, coral protection and restoration initiatives are also supported by international organizations and governments, working to reduce greenhouse gas emissions, plastic pollution, and overfishing—three major factors contributing to coral decline. While these efforts provide hope for restoration, the situation remains urgent. Coral reefs, these biodiversity treasures, continue to suffer under the combined effects of climate change and pollution. Scientific solutions, though promising, can only succeed if accompanied by collective action to combat climate change. Protecting corals has become a global challenge, a test for humanity's ability to safeguard the natural wonders that connect us to our planet. FAQ — Coral BleachingWhat is coral bleaching?It’s the loss of symbiotic algae (Symbiodiniaceae) from coral tissue under stress, making corals turn white and become vulnerable. What causes bleaching?Marine heatwaves, El Niño events, poor water quality, and extreme light. Prolonged stress can lead to coral death. How can we protect reefs?Cut local pollution, manage fisheries, reduce physical damage, support restoration, and reduce emissions driving ocean warming. 
Sound of Silence — Making Of (Mayotte)
Dive into Mayotte’s underwater magic with Seablue Safari and Nils Bertrand — swim with turtles, whales, sharks, dolphins, and more! Discover a hidden ocean paradise full of life and wonder.
Immersion in the Lagoon of Mayotte: Just Below the Surface
Mayotte, a pearl of the Indian Ocean, is a sanctuary where marine life thrives under crystalline light. This project could have taken a completely different turn. I was in contact with the BBC for a collaboration with Blue Planet, but things did not go as planned. The person who was supposed to provide scientific validation for our project took advantage of the situation to push their own project forward, ultimately leading to the cancellation of ours. I had believed that the world of wildlife documentaries was driven by a shared love for nature, but reality is quite different: some are willing to do anything to take someone else's place. It was a disillusionment, but it did not stop me from pursuing my work with the same determination. For my first episode dedicated to the marine depths, I chose to explore this fragile and fascinating world that exists just below the surface, where sunlight dances with the water and reveals an ecosystem of incredible richness. 
Aerial vision of Coral reef of Mayotte lagoon
The Genesis of the Project
The idea for this short film was born from a desire to capture the raw beauty and harmony that reign in these preserved waters. Unlike deep dives that reveal mysterious abysses, I wanted to showcase what is accessible to everyone, just a few meters below the surface. This is where the spectacle begins, where coral reefs teem with life, and marine creatures move in a natural choreography.
Filming at the Rhythm of Nature
Creating this film required a patient and respectful approach. Working exclusively with natural light, I sought to capture every detail with optimal clarity. The sunlight filtered through the water provided vibrant colors and an almost surreal rendering, where the blue of the lagoon blends with the vivid hues of fish and corals. From the moment I arrived in Mayotte, I had the idea of creating a 30-minute short film. It ultimately took more than four years to gather all the pieces of the puzzle and turn it into a full-fledged documentary. It is important to highlight the time required to bring such a project to life, as some people think that all it takes is to jump into the water to capture extraordinary images. In reality, one must traverse the lagoon extensively, listen to rumors about the presence of animals, go out, wait, and return empty-handed over and over again, until the perfect moment presents itself—or until the frustration of a missed opportunity sets in. In this regard, the presence of Nils Bertrand from Seablue Safari was invaluable. He knows the lagoon and the behaviors of its marine inhabitants inside out, having observed them in Mayotte for over twenty years. His experience and deep understanding of the environment allowed us to execute exceptional approaches and capture rare, authentic moments. The main challenge was anticipating the movements of marine life to film unique moments. The curiosity of sea turtles, the grace of stingrays, and the frenzy of juvenile fish schools provided magical scenes that only prolonged immersion can truly capture. 
Dive with the Tursiop family in the blue of Mayotte lagoon
Stay in the FlowDiscover fine art photographs of dolphins captured in the Indian Ocean. Expressive, wild and free — each print is signed and printed on gallery-grade paper. Explore the Collection →
A Visual and Auditory Narrative
Until now, I had always worked on short clips or projects lasting three to four minutes. This time, I had to find the right balance between images, music, voice-over, and silence. Creating a smooth and immersive narrative required not only a different approach but also having the necessary footage to perfectly construct the story's flow. Additionally, this project demanded real teamwork. I collaborated with Mathilde Hangard for storytelling and with Nils for the scientific aspects. Nils, who values precision, significantly raised the level of rigor I had set for myself. His expertise brought an essential level of accuracy to the film's information and sequences. Ultimately, nearly a year was needed for editing and the final cut. Removing scenes, adding others, using certain necessary but subtle effects—it was meticulous work and an ambitious project that required both time and discipline to produce a film that remains faithful to the beauty and complexity of Mayotte's lagoon. 
Humpback whale and its calf in the blue of Mayotte Lagoon
Family Orcas in the blue of Mayotte Lagoon
I was out at sea, off the lagoon of Mayotte, when we encountered a group of eight orcas hunting. Their prey: rays and tiger sharks. We watched in awe from the surface, observing their interactions, their precision, their intelligence. Then, my friend Nils invited me to get in the water.
I’m used to diving with sharks, but getting in the water with orcas for the first time was a different story. As soon as I submerged, I saw these incredible mammals with a tiger shark in their jaws. Normally, a tiger shark seems massive to me, but in their grip, it looked like a mere puppet, a toy. After the initial shock, realizing that they had no interest in me, I was finally able to take a few photos and record some footage just beneath the surface. When you climb back onto the boat after such an experience, two things become crystal clear:
So, let’s talk about orcas. 
Power. Grace. Presence.Explore a fine art series dedicated to the ocean’s most iconic predators. Each orca image is printed on gallery-grade paper, signed and shipped with care. View “We Are Orcas” →
Powerful and Intelligent Predators
Orcas (Orcinus orca), often called the "wolves of the sea," are among the most intelligent and efficient predators in the ocean. Their adaptability and strategic hunting techniques make them apex predators, capable of capturing a wide variety of prey, from fish and seals to even sharks. Sophisticated Hunting Techniques Each population of orcas develops its own hunting strategies, passed down through generations. Antarctic orcas create waves to knock seals off ice floes, while those in Mayotte hunt tiger sharks and rays. They are even known to flip sharks onto their backs, inducing a state of paralysis called "tonic immobility"—a highly effective technique.
Unmatched Intelligence and Unique Culture
Orcas have one of the most developed brains in the animal kingdom. They use distinct vocal dialects within each pod, follow a strong matriarchal structure, and display behaviors that resemble cultural traditions. Their ability to learn and imitate is extraordinary, strengthening bonds between pod members and shaping their way of life. Hunting Strategies Orcas are apex predators with spectacular hunting techniques adapted to their prey and environment. In the Indian Ocean, they primarily feed on tuna, sharks, dolphins, and occasionally even whales. One of the most impressive behaviors observed is their ability to hunt sharks, including tiger sharks and even great whites. Orcas are known for their technique of flipping sharks onto their backs, inducing a state of catatonia that leaves them completely vulnerable. Other observations show that they hunt in coordination, using waves to knock seals off ice floes or trapping schools of fish by tightening their movements. Some populations specializing in hunting marine mammals have even been seen separating young humpback whales from their mothers, employing harassment tactics over several hours. 
Communication and Social Intelligence
Orcas are among the most intelligent marine animals. They use a complex language consisting of whistles, clicks, and sounds specific to each group. In the Indian Ocean, vocal differences have been recorded between populations, suggesting the existence of distinct dialects depending on the region. Their social structure is based on family groups called pods, led by an experienced matriarch who passes down knowledge to younger generations. This knowledge includes hunting techniques, migration routes, and essential social behaviors for survival. 
Threats
Despite their status as apex predators, Indian Ocean orcas are not immune to human threats. Overfishing reduces their access to prey, while plastic pollution and chemical contaminants accumulate in their bodies through the food chain. Collisions with ships and noise pollution from maritime traffic also affect their communication and way of life. Protecting these magnificent creatures requires better fishing regulations, habitat preservation, and increased efforts to reduce marine pollution. The Harsh Reality of Captive Orcas While orcas are mesmerizing in the wild, their fate in captivity is heartbreaking. These creatures, accustomed to traveling vast distances each day, find themselves confined to small tanks, deprived of their natural behaviors and complex social structures. The stress and boredom often lead to abnormal or even aggressive behaviors. Institutions like SeaWorld have long exploited these cetaceans for entertainment, but public awareness—especially after documentaries like Blackfish—has sparked a movement against keeping orcas in captivity. Into The Wild – Orcas Hunting Tiger Shark captures an intense moment rarely filmed: orcas collaborating to subdue a tiger shark. Watch the full sequence above. Orcas: A Symbol of Ocean Freedom Encountering orcas in the wild is an experience that stays with you forever. These creatures embody the raw power and mystery of the ocean. But they also serve as a reminder of how fragile marine ecosystems are—and how it is our responsibility to protect them. What are orcas?Orcas, also called killer whales, are powerful apex predators. They live in every ocean, hunt in pods, and feed on fish, rays, sharks, seals, and even whales. Why are orcas considered apex predators?Orcas are at the very top of the marine food chain. They have no natural predators and use complex strategies to hunt everything from small fish to sharks and dolphins. Are orcas endangered?Globally, orcas are listed as Data Deficient on the IUCN Red List, but many local populations are threatened. Pollution, noise, loss of prey and captivity have reduced their numbers in places like the Pacific Northwest. Where can orcas be seen in Mayotte?Though extremely rare, orcas have been observed in Mayotte’s lagoon. Documented encounters include orcas hunting mobula rays and even challenging tiger sharks. Great White Shark of Guadalupe Island : Diving into the Territory of the Ultimate Predator2/22/2025
Off the coast of Mexico, 240 kilometers from the Baja California Peninsula, lies Guadalupe Island, a marine sanctuary ruled by the most iconic of ocean predators: the great white shark (Carcharodon carcharias). This small volcanic island, battered by winds and surrounded by crystal-clear waters, has become one of the best places in the world to observe this sea giant.
A Journey Beyond Time Exploring Guadalupe is venturing into a raw and pristine world, far from human turmoil. Accessible only by boat after a nearly 20-hour sail from Ensenada, this isolated territory offers divers a unique experience: meeting the largest predator of the oceans face-to-face, immersed in its world. In the deep blue waters, the silence is broken only by the gentle lapping of waves against the metal cage. The anticipation is a surge of adrenaline. Then, suddenly, a ghostly silhouette emerges from the blue. Immense. Graceful. Powerful, yet contained. With a fixed gaze, the great white moves with fascinating fluidity, revealing all the intelligence and curiosity of an animal often misunderstood. A Fragile Sanctuary While Guadalupe is a paradise for shark enthusiasts, it is also a fragile ecosystem. Since 2005, the island and its surrounding waters have been designated a biosphere reserve, banning all fishing and ensuring a protected environment for sharks and other marine species. But the threat persists. Climate change, plastic pollution, and human pressure remain significant challenges for the conservation of these fascinating creatures. Observing a great white shark in Guadalupe, therefore, is more than just an extraordinary experience; it’s a powerful reminder of the importance of protecting the oceans and their inhabitants. Practical Information
Face to Majesty – The Great WhiteExplore a fine art portrait of the great white shark — a symbol of strength, elegance, and mystery from the depths of Guadalupe Island. This piece captures the raw silence of a true apex predator in its natural realm. View “Guadalupe – The Great White” →
Great White Shark: Master of the Oceans
The great white shark, with its imposing silhouette and sharp teeth, is one of the most feared and fascinating predators on the planet. Reaching up to 6 meters in length and weighing over 1,000 kg, this marine predator moves with an unmatched grace and efficiency. Its reputation as an unrelenting hunter is partly due to its ability to detect even the slightest vibrations in the water and its hunting strategy, which combines patience and speed. It primarily feeds on seals, sea lions, and other marine mammals, and its role in maintaining marine ecosystem balance is crucial. As a "super-predator," the great white shark regulates prey populations, helping to maintain the health of marine populations by preventing the overpopulation of other species. Despite its reputation for danger, attacks on humans remain extremely rare, and great whites are actually curious animals, exploring their environment and "targets" cautiously before retreating. Clear, practical guide to Guadalupe’s great whites: current access status, historical seasonality, ethics & safety notes, and where to go instead while the island remains closed.
Status: Closed by Mexican authorities Last updated: Aug 18, 2025
Is Guadalupe open right now?No. Mexico’s authorities closed the island to tourism and shark-related activities (initial suspensions in 2022; a management plan published January 2023 does not permit visits) and industry updates in 2025 still list it as closed. Operators monitor the situation, but there’s no official reopening date. Historical season & why it was uniqueJuly–October offered exceptional visibility and predictable encounters with large great whites. Liveaboards staged surface and submersible cages following strict protocols, with natural behavior the goal. Ethics & safety (photographers)
Do I need a scuba certification?
Historically, surface cages allowed non-certified guests (hookah). For photography, strong water comfort and calm camera handling are essential.
When was the best time?
Mid-July to late October delivered blue water and frequent encounters.
Is there any timeline to reopen?
None officially announced. You can join the waitlist and consider the alternatives (see bottom of page) meanwhile.
The "Shark Café" is an informal term referring to an area located in the middle of the Pacific Ocean, between Baja California and Hawaii, where great white sharks (Carcharodon carcharias) periodically gather. This location was discovered thanks to satellite tagging of these sharks, which embark on a journey of about a month from their usual habitats off the coast of California to reach this remote region.
The exact reasons for this gathering remain partially mysterious. Initially, some researchers believed that the "Shark Café" could be a mating or birthing area for the great white sharks. However, this hypothesis has been questioned, as the significant distance between this area and the coastal nurseries makes it less likely. Recent studies have revealed that the "Shark Café" is actually a true oceanic oasis, home to an amazing biodiversity, including more than 100 species of fish and deep-sea squids. The great white sharks likely gather in this region to feed on these abundant prey, which explains their regular presence in the area. Regarding the reproduction of great white sharks, they are ovoviviparous, meaning that fertilized eggs develop inside the mother, who then gives birth to live young. Before birth, the shark pups practice oophagy, feeding on unfertilized eggs inside the uterus. In summary, while the "Shark Café" is an important gathering spot for great white sharks, it is not considered a reproduction zone. The exact reasons for their presence in this area are still being studied, but it is likely related to their search for food in an environment rich in prey. 
Cage Diving: A Debate on Ethics and Conservation Cage diving to observe the great white sharks of Guadalupe raises ethical and environmental questions. On one hand, it allows enthusiasts to experience a unique encounter and raises awareness about the beauty and necessity of protecting these animals. Observing them up close, without disturbing them, can help break the stereotypes surrounding these predators and show that they are not the "monsters" often depicted in the media. 
On the other hand, some critics argue that even passive human interaction can disrupt the natural behavior of the sharks, particularly by attracting them to the cages with food. This could also encourage the sharks to associate human presence with food, exposing them to additional risks, such as accidental captures in fishing nets. Ultimately, cage diving remains a controversial experience, requiring strict regulation and responsible management to ensure that shark observation does not jeopardize their well-being or natural habitat.
Best alternatives while Guadalupe is closed
South Africa (Gansbaai / Mossel Bay)
Seasonal great whites & sevengills; dynamic conditions; licensed cage ops.
Neptune Islands (South Australia)
Regulated white shark viewing with strict operator standards.
Socorro / Revillagigedo (Mexico)
Not white sharks but world-class pelagics (oceanic mantas, sharks, dolphins) in season. More destination dive |
Serge Melesan
Underwater & Fine Art Ocean Photographer Specialist in Fine Art Ocean Photography. Published in Oceanographic Magazine & Earth.org. National Geographic Traveller – Portfolio Winner (2023). Archives
Novembre 2025
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