DAN Member Profile: Otto Rutten
Otto Rutten is the associate operations director for the Aquarius Reef Base located in the waters of the Florida Keys. Read more about Rutten and why he is a DAN member.
Alert Diver Issue: Q3 2011
Ghost Hunters
Ghostpipefishes are incredibly hard to find — spending most of their short lives in the open ocean as bits of plankton before eventually settling in protected coastlines, where they discreetly blend into the shadows and breed. Read more about encounters with ghostpipefish.
Interval Training: The High-Efficiency Workout
Interval training can simultaneously improve muscular endurance and strength, power, cardiovascular endurance and flexibility. Learn more about the pros of interval training and gain a great workout.
Catalina Island
Catalina Island is a small land mass barely 25 miles off the coast of Los Angeles. The coastline and area offer countless diving possibilities. Read more about diving around Catalina Island.
Drowning From the Inside Out
A diver nearly drowned during ascent. Acting quickly, he made a rapid ascent so not to black out. Read more about his harrowing story.
Altitude and Decompression Sickness
High altitude is linked to decompression sickness — why divers should not fly immediately after diving. But what about diving at altitude? Read more about altitude and decompression sickness.
Hyperbaric Chambers for Dive Injuries
Hyperbaric chambers are often the definitive treatment for decompression illness. There are also several different types of chambers, not all are suitable for treating decompression illness. Read more about hyperbaric chambers, treatments and availability.
What’s That You Say?
Hand signals are critical communication tools for divers. It’s imperative before any dive that buddies understand their preferred signals to avoid any miscommunications or mishaps.
Where’s Dave?
When a diver popped up before his buddy, he started immediately coordinating with the divemaster and boat operator to coordinate a search. Thankfully, the buddy was found unharmed.
Concussions and Diving
DAN Medics answer your questions about dive medicine.