Shark Deterrents
Many divers seek interactions with sharks, but others actively seek to avoid them. As long as sharks are in the water, people will look for ways to reduce the lethality of a shark bite or decrease encounters altogether.
THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK
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Gaming Introduced Me to a New World
I’m 14 years old and a newly certified scuba diver. I’ve heard that many years ago divers got certified because of Jacques Cousteau or an old TV show called Sea Hunt, but those were way before my time.
Smalltooth Sawfish
Equipment: Olympus PEN E-PL10, 14-42mm zoom lens with a wet wide-angle diopter, AOI Octo housing, two Sea & Sea YS-D3 strobesSettings: 1/50 sec, f/13, ISO 250Location: Florida Keys, Florida Smalltooth […]
Misool Foundation
The spectacular ecosystem of Indonesia’s Raja Ampat offers ample opportunities for fish portraits and macro shots with a 100mm lens, but the broad expanses of pristine hard corals punctuated with colorful soft corals and sea fans made it difficult for me to forego using my wide-angle lens during a recent liveaboard trip.
Advanced Underwater Navigation
Most divers’ love of the sport stems from a drive to explore a foreign environment. With exploration must come the ability to navigate. Nowhere else on Earth can one become more lost than in a liquid, while simultaneously requiring constant individual concentration on safety techniques, breathing gas, buoyancy, horizontal trim, depth, and time.
Pieter-Jan van Ooij
Pieter-Jan van Ooij, MD, PhD, is the head of the Department of Research, Innovation, and Education at the Royal Netherlands Navy’s Diving Medical Centre (DMC).
Curated Corals
This past summer the Florida Keys experienced the effects of a marine heatwave event that lasted longer and was more intense than anything in recent recorded history. By early June 2023 the National Oceanic and Atmospheric Administration (NOAA) Coral Reef Watch (CRW) issued bleaching warnings for some areas in the Florida Keys and other locations in the Caribbean.