Know Your Oxygen-Delivery Masks
Oxygen units include various delivery systems, including oronasal masks, nonrebreather masks and bag valve masks, so divers should know the appropriate mask to use in each situation.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Ocean Advocacy in America
Legislation was proposed that could lead to the degradation of marine environments through overfishing and limiting transparency. Read more about how divers can help save the oceans.
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Journey’s End
In attempt to find larval fishes and invertebrates, two divers attempt to dive at dark. After several foiled attempts and an onslaught of minnows, they were able to find one cephalopod.
Isle Royale National Park
Isle Royale is in the northwest corner of Lake Superior, and belongs to the state of Michigan. It was declared a national park in 1940 and boasts many shipwrecks — ranging from a 19th-century paddle wheeler to modern freighters.
Member to Member: Bitten!
No matter how unlikely it is for a hazard to be a problem, the unexpected can happen. When one DAN member was bit by a barracuda, it reaffirmed why he was a member of the organization.
Emergency Action Plans: When Things Go Wrong
Emergency action plans (EAPs) are made up of many components. But before the plan is even enacted, fully understand where disasters can occur.
Prepare for Safe Dive Travel
If it took two planes, a boat and a hike to get somewhere, getting out will usually be similarly complicated. With that in mind, always prepare for safe travel.
The Race to Save the Greatest Library on Earth
Researcher Richard Pyle, Ph.D. is trying to change the way scientists look at biodiversity. Pyle’s work has also focused on coral reefs, diving and databases.
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