Cruise Ships Are Stirring Things Up
Coral reefs are facing many environmental challenges, and cruise ships are a major contributor. One of these ships’ greatest impacts is starting to muddy the water.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
Filter Available Articles by Selecting a Category:
Filter...
Once in a Lifetime
Like many octopuses, the female greater blue-ringed octopus (Hapalochlaena lunulata) is a semelparous animal, which means she reproduces once and then dies. After she lays a clutch of eggs, she quits eating and wastes away while protecting her eggs, dying shortly after her eggs hatch.
Diver Recall Systems
Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time coordination difficult. Response time is critical in emergencies, and delays can be dangerous.
ADVERTISEMENT
Shocking Misconceptions About AEDs
The automated external defibrillator (AED) was developed as a portable medical device and released for public use in the 1960s. The operation of AEDs has gotten simpler over the years, and the devices are now widely available for use by lay providers with basic training.
DAN-UHMS CME Course Expands to Two Weeks
DAN reached a significant milestone in the accredited DAN–UHMS Continuing Medical Education (CME) program in May 2024: the debut of a two-week, dual-course format.
Exercise and Decompression Risk
Being physically fit can be important, and sometimes crucial, for dive safety. Physical fitness plays a role in both regular dive activities and emergent events. A quick and effective response to sudden demands can often quickly and easily resolve a situation, while an insufficient response can prolong or exacerbate it.
Thailand’s Surin Islands
The Kingdom of Thailand, a sprawling Southeast Asian country slightly larger than California, shares land borders with four countries and neighbors a fifth by sea. It is a progressive sovereign nation that remains deeply rooted in culture and customs.
A Tale of Two Passes
This is Fakarava — a remote atoll in French Polynesia that feels more like a gateway to another world than a dive destination. Nestled in the remote Tuamotu Archipelago, this UNESCO biosphere reserve is where discriminating divers come to leave the ordinary behind.
Gulf of Maine
Diving at Eastport was always special for me, and I tried to visit there a couple of times each year. The nutrient-rich massive tides fed a series of stunning habitats along the coast.
ADVERTISEMENT