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.
Alert Diver Issue: Q1 2018
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.
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.
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.
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.
Walruses
Weighing up to 3,000 pounds, walruses are among the largest pinnipeds. However, walruses and polar bears are threatened because of diminishing sea ice in the Arctic. Learn more about these pinnipeds.
DAN Member Profile: Ian Koblick
DAN member Ian Koblick is a science teacher, aquanaut, hotel manager, diver and much, much more. Read more about Koblick’s passion for diving.
A Different Kind of Dive Club
The volunteer program at the Oregon Coast Aquarium exemplifies a culture of safety. Members of this dive program volunteered to take part in a DAN research study on irregular heartbeats.
Playing Tag with Sharks
Shark tagging enables scientists to study the abundance and movements of sharks around the world. This also helps determine where sharks need the most protection. The tagging practices provide useful data to scientists.
Tuna
Tuna are warm-blooded and have “mega-gills.” There are many species of tuna and certain species have been listed as endangered. Because of the world’s increasing dependence on this protein source, they could become victims to overfishing.