Gradient Factors (GF) are coefficients (e.g., 90%, 80%…) that can only be used with Haldanian parameter sets (e.g., U.S. Navy, Bühlmann…) and that allow the reduction of M-Values to increase stop times (or reduce no-stop limits) and, depending on the case, their depth. In other words, they reduce, in Workman’s notation, the M0 and ΔM […]
Objective Wild: Diving into the heart of coexistence with major predators Living in harmony with major predators: myth or reality? This is the challenge taken up by the documentary series Objective Wild, created by Rodolphe Guignard, Mégane Chêne, and Florian Launette. From Mexico to British Columbia, via the Bahamas and Norway, the team meets sharks, […]
Preserving the European Lobster: the challenge of the National Lobster Hatchery As it approaches its 25th anniversary, the National Lobster Hatchery (NLH) in Padstow, Cornwall, positions itself as a pillar in the preservation of the European lobster (Homarus gammarus). As demand skyrockets and overfishing threatens wild populations in Scandinavia as well as in the Mediterranean, […]
Anne Joncheray: Journey of an Underwater Archaeology Enthusiast An emblem of diving and underwater archaeology in the Mediterranean, Anne Joncheray stands out for her deep commitment to exploring, documenting, and protecting shipwrecks, from ancient relics to modern vessels. As the curator of the Prehistory and Underwater Archaeology Museum in Saint-Raphaël, she is an indispensable author […]
The BUCAM, Barcelona’s Underwater Photography Museum, and the FECDAS with its Historical Diving Department, invite you to participate in the VINTAGE MEDSUB – VINTAGE FILMSUB 2025 event, on September 20, 2025. The 2025 edition will combine, in the morning, demonstrations of vintage equipment on Sa Caleta beach, conferences and round tables in the afternoon, then […]
Exceptional Journey: Frédéric Di Méglio at the Helm of FFESSM A Remarkable Path to the Presidency Becoming the president of FFESSM, the French Federation of Underwater Studies and Sports, may seem accessible… provided you have a breathtaking journey! Frédéric Di Méglio is a triple CMAS world champion in underwater photography. Between 1986 and 1996, he […]
June 27, 2025 marks a key milestone in the world of water sports with the announcement of the acquisition of the AQUALUNG group by HEAD, a global player in sports equipment. This strategic merger, confirmed by a decision of the Nice Commercial Court on June 26, follows AQUALUNG’s placement into judicial reorganization on May 16. […]
Feeling the urge to dive? In this new edition of « Cast Off », we present a selection of breathtaking dive destinations. In our previous issues, we explored fascinating cruises. Today, get ready to dive in Madagascar, discover Saba and Saint Kitts, and explore the captivating waters of Komodo. The lesser-known: Itineraries away from the crowds in […]
In mid-November, in the charming town of Hyères-les-Palmiers, the eighth edition of the Galathea International Festival, dedicated to the marine world, took place. This event revealed the winners of its photo contest, where more than 110 competitors, divided into two categories — experts and amateurs —, presented approximately 1,200 images. These sea enthusiasts, coming from […]
Laurent Ballesta, Wildlife Photographer of the Year for the 4th time! This year, Laurent Ballesta, renowned wildlife photographer, has once again been crowned Wildlife Photographer of the Year for his exceptional portfolio. He opens the doors to a fascinating world for us, that of horseshoe crabs, these enigmatic creatures that have roamed the seabed for […]
