Rediscovering History Preserved by the Sea
During a short, 25-minute dive professional divers were able to extensively photograph an aircraft that sank in 1944.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Member to Member: Giving Back
An ophthalmologist set up a team to perform eye surgeries in Grenada as a way to give back to the local community. More than 100 children received eye exams.
Studying Deep Reefs and Deep Divers
Papahānaumokuākea Marine National Monument (PMNM) in the Northwestern Hawaiian Islands is the largest marine conservation area in the United States and one of the largest in the world. Studying the biodiversity of the Hawaiian archipelago using scuba has given scientists a unique opportunity to monitor the physiological impacts of deep dives and thus expand our knowledge of diving science, particularly decompression risk.
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DAN Member Profile: Deano Cook
Tattoo artist Deano Cook is also an accomplished painter and underwater photographer. The DAN member discusses how he got into scuba diving and what he enjoys about the sport.
Dutch Springs
Pennsylvania is not known as a premier dive destination, but on the east side of the state is a gem for divers. Dutch Springs is an old quarry-turned-lake and was made into a scuba diving facility.
Invisible Crystals
Polymorphic crystallization inside hoses has recently emerged as a hazard divers should be aware of. Be sure to replace old hoses, limit hoses’ exposure to high temperatures, and follow manufacturers’ maintenance recommendations.
Night Drifters
Recent studies have shown larval fishes to be strong swimmers with sophisticated instincts for remaining in local waters. But exactly where they go between spawning and settlement remains a mystery.
Differentiating Coral Bleaching and Coral Mortality
Corals bleach, or turn white, when their symbiotic algae are expelled from the corals’ tissues due to stressors such as excessively warm water. Bleached corals can and do recover when favorable conditions resume.
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