Member to Member: A Reef in the Living Room
Aquariums can house your own slice of indoor reef life — complete with colorful fish, corals and spunky crabs. Follow these tips to create your perfect aquarium.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Oxygen Sensing in Rebreather Diving
Reliable measurement of oxygen is the technology that makes mixed-gas closed-circuit rebreathers (CCRs) possible. The first digital solid-state CCR sensor was made available in Spring 2017, and has greater accuracy and reliability.
Mouths Full of Eggs
Eggs are a dinnertime delicacy in reefs around the world, which means protecting nests is hard work. Ironically, the safest place to hide eggs may be in the mouth.
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Flower Garden Banks
Located in the Gulf of Mexico, the Flower Garden Banks National Marine Sanctuary is home to a variety of sea critters and is a treat to dive.
Eating Our Way Out
Lionfish pose a threat to native species as their numbers are skyrocketing out of control. The best way to solve the problem of invasive lionfish? A fork.
Diving After Arthroscopic Knee Surgery
DAN medics and researchers answer your questions about dive medicine.
A Rude Awakening
Although training emphasizes the theoretical aspects of safe freediving, sometimes it takes real-world experience to really make it sink in. Freediving is risky so it is always important to have your skills sharp.
No Sit-Ups, No Problem
Admit it: You hate performing sit-ups. (We all do.) But there are other ways to engage your core muscles and strengthen the area. Here are some great core exercises that provide strength and work other muscle groups.
Asking the Right Questions
Ingrid Eftedal, Ph.D., studies the genetic and molecular mechanisms involved in the body’s responses to diving. Eftedal’s diverse background includes work in molecular biology, forensic genetics, civil engineering, biophysics and medical technology.
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