At least seven abalone divers have perished so far this year in California, victims of kelp, strong waves, heart conditions, sharks, and—indirectly—a somewhat inscrutable love of a giant marine snail that is at best an acquired taste.
The Los Angeles Times brings the surprisingly harrowing details:
‘I spent a lot of time training for this kind of thing and I have dealt with a lot of death,’ said Ron Long, a certified diving instructor who tried to save [Richard] Baer. ‘But there was nothing that prepared me to go down in 12 feet of water and stare at the face of my best friend who was drowned.’
Divers aren’t allowed to use air tanks to catch their slimy targets, and are limited to taking three abalone a day. The state ban on oxygen containers is controversial; an emergency canister could help kelp-entangled divers survive the experience.
A correction - divers don't use "oxygen containers", they use air tanks, or air cylinders, which are 78% nitrogen. The richest Nitrox mix a recreational diver would be likely to use would still be only about 36% oxygen. Too rich an oxygen mix is dangerous at depth, and breathing 100% oxygen at depth would be fatal.
Who cares if they are using oxygen if the limit remains 3 per day and you get to live to boot. Bureaucrats suck.