A Nigerian crew member of a tug boat that sank was rescuedthree days later by a diver conducting a body recovery dive. He survived in an air pocket inside the boat which was 30m (100ft) below the surface.
I’ve been that diver, but it was mere moments after the boat in question sank. I was hoping to find a situation like this.
But if I was grabbed by a survivor 3 days after the boat sinking I would have made a big mess in my wetsuit! :eek:
I’m really surprised hypothermia wasn’t an issue (or at least it wasn’t mentioned in the article). What’s the water temperature at 30m? Even if he was out of the water, I assume that he was still pretty wet.
It’s not entirely clear exactly where the boat went down, but in tropical waters it is entirely feasible to have the water temperature at 100ft be the same as at the surface. Around here it is 86 F (30C) or so.
This sea surface temperature map from NOAA has a scale that maxes out at 32.6C. That’s around 90F, which is noticeably less than body temperature. I don’t know if there are other circumstances that would result in warmer surface (or 30m down) water.
The build up of co2 kills you before you’ve depleted the oxygen. So yeah breathing out through a tube going outside the bubble will prolong your life. But anyway sea water absorbs co2 right ? Would the co2 from expiration get absorbed fast enough by the water facing the bubble without you having to breathe out through the bubble ?
I worked topwater with a recovery team years ago. One of my duties was to observe the bubble trail from our diver on the surface of the water. If the trail never moved then it meant the diver may be snagged and we would send down a second diver to assist. (The first diver knew to keep his cool because of that rule)
We could always tell when a diver found the body. The bubbles would become larger and more frequent. Since most of the time our diver was feeling his way around the lake bed or river bed he would only be able to tell if he found the body if he was touching it. The excitement made him take a few deep quick breaths.
One time the bubbles came up huge and voluminous. Seems our diver discovered the body when he reached into the victims mouth.