No. That study shows that if the trout ability to breath is removed for prolonged period mortality rises quickly. It's reasonably assumed that the fish can't breath when not in water. There is a significant change at around 30 seconds of air exposure.
If you read the specific study in your link- they recommend fish be held out of water for no more than 20 seconds
I did read it RalphH.
The study was done using "exercised " trout as I posted. They exhausted them first to simulate having been tired out during a fight and
then deprived them of water. The second paragraph in the link I provided discusses briefly the physiological effects due to angling duration, which are significant. "Add" to that, oxygen deprivation and the mortality rates spike.
Nonetheless, I think we both agree a quick picture is fine as long as one is using common sense and not holding a tired, stress out fish, out of the water for extended periods.
Cheers,
wimf