X-Ray Mag #139

Feature articles in this issue with stand-alone pdfs

Brandi Mueller   Brandi Mueller
Photo by Brandi Mueller

Bangka is one of several islands off the northern end of North Sulawesi, offering marvelous diving and luxurious lodgings. In part two of this two-part chronicle, Brandi Mueller tells of her trip to Bangka Island with her non-diving mother on their Indonesian adventure.

Anita George-Ares & John Ares   Anita George-Ares & John Ares
Photo by Anita George-Ares.

There are many intriguing subjects to photograph in the water column. Underwater photographers Anita George-Ares and John A. Ares share their favorite blue-water photos as well as the thoughts behind each shot.

Larry Cohen   Larry Cohen
Photo by Larry Cohen

Observing bull sharks up close is a profound experience, where the safety of divers and the protection of sharks are crucial considerations. Underwater photographer Larry Cohen shares his impressions and photos of diving with pregnant bull sharks at Playa del Carmen, in Mexico.

Lawson Wood   Lawson Wood
Photo by Lawson Wood

One of the most prevalent and photogenic invasive species in the Caribbean is the golden cup coral. Lawson Wood takes a closer look.

Constantin Ene and Martina Utzinger   Constantin Ene
Photo by Constantin Ene

When you think of Sweden, IKEA, Volvo and Greta Thunberg might be the first things that come to mind. But think again, because Sweden—and more specifically Västmanland, Dalarna and Värmland—offers some of the best diveable mines in the world. Constantin Ene and Martina Utzinger take us on a tour of one of them: the Långban Mine.

Pierre Constant   Pierre Constant and Kirin Sekito
Photo by Kirin Sekito

Diving in Japan is diverse, with temperate waters in places such as Izu Oshima in the Tokyo Islands, and warmer, tropical waters in Okinawa. Pierre Constant tells of his visit to these two disparate locations and the variety of marine life he encountered at each.

Lorenzo Moscia   Lorenzo Moscia
,
Translation edited by G. Symes   Lorenzo Moscia
Photo by Lorenzo Moscia

Photojournalist Lorenzo Moscia returns to the Visayas in the Philippines to explore the beautiful reefs of Anda and Panglao Island in Bohol, Dauin and Apo Island in Negros, and Malapascua Island in Cebu to see the thresher sharks. He shares his experience photographing the diverse marine life and remarks on the growth and changes observed since his last visit.

Simon Pridmore  
Larry West - CC BY-SA 2.0 via Wikimedia

What makes a dive liveaboard perfect? Simon Pridmore takes a closer look and offers insights and tips for choosing the right dive liveaboard for you.

Other news published in this issue

Dive gear in carry-on luggage

Stricter enforcement of cabin baggage limits and battery rules is creating new challenges for travellers carrying underwater photography equipment.

Photo by Borut Furlan, CC BY-SA 4.0

New marine protected areas in French Polynesia, Chile, Greece and New Zealand highlight growing global momentum toward safeguarding ocean ecosystems.

New Study Clarifies Self-Recognition in Cleaner Wrasse

Research revisiting mirror experiments with cleaner wrasse addresses earlier criticisms and strengthens evidence that these reef fish may recognise their own reflection.

NMFS Southwest Fisheries Science Center - NOAA - public domain

Researchers have documented what may be a rare case of cooperative hunting between killer whales and dolphins, suggesting the two marine predators may sometimes work together to catch salmon.

Peter Symes - AI

New research suggests killer whales may listen to dolphin echolocation clicks to locate prey, revealing an unexpected acoustic interaction between two of the ocean’s most sophisticated marine mammals.

Peter Symes - AI

Authorities in southwest England are stepping up efforts to combat heritage crime at sea, introducing new guidance and enforcement coordination aimed at protecting historic shipwreck sites from looting and damage.

Peter Symes - AI

A proposed amendment in the UK Armed Forces Bill 2026 could extend legal protection to vessels lost in military service, potentially affecting how divers explore many historic wreck sites in British waters.

Dr Michael Flecker CC BY-NC-ND 4.0

A 14th-century shipwreck discovered in Singapore waters carried tonnes of Chinese ceramics, offering rare archaeological evidence that the port of Temasek was already a thriving maritime hub centuries before colonial times.

Photo courtesy of Hollis

Hollis has issued a formal Stop Use / Stop Sale notice for certain 200LX second-stage regulators, advising divers to remove affected units from service immediately due to a potential safety risk.

Wünderbrot, CC BY-SA 4.0

At the bottom of the ocean, where sunlight never reaches and pressures would crush a submarine like a tin can, volcanoes blaze and chemicals gush from cracks in the seafloor. It is here, amid utter darkness and crushing cold, that some of the most bizarre and unlikely life forms found on our planet thrive. These places—called hydrothermal vents—are more than just alien oases of life. They may also hold the answer to one of the greatest questions ever asked: Where and how did life begin?

Wikimedia - US public domain

Images and survey data confirm the wreck of SS Lac La Belle, a 19th-century passenger and cargo steamer that sank in 1872 during a storm on Lake Michigan.

Albert Kok - public domain via Wikimedia

Sponges are the oldest animals on our planet, yet they thrive without brains. A sponge silently stuck to the reef blends perfectly into its environment, so that divers often pass it without a second glance. And yet, beneath that still surface, a sponge is astonishingly busy.

Photo by Ila France Porcher

After six years of tracking tiger sharks around Hawaii, scientists have identified what appears to be the first known group mating site for the species. The discovery could transform how we understand tiger shark life cycles—and how we protect them.

Romano Gianluca CC BY-SA 4.0

Among waving seagrass and drifting algae, tiny dragons glide in silence. Seahorses and pipefish move through their world like living calligraphy—slender, delicate, and almost invisible. Their lives unfold quietly, in gestures, colours, and whispers too soft for human ears. Yet, within this miniature world lies one of the ocean’s most mysterious forms of communication.

Polygonia c-album - CC BY-SA 4.0 via Wikimedia

Landmark decisions expanded international trade controls for more than 70 threatened species of sharks and rays.