I can't find a link to the study, but I think it was originally done by a couple of Australians. Just a knowledge of fish biology (I teach it), leads me to believe that their study has merit. Fish are adapted to a neutral-buoyancy habitat, and their bodys aren't designed to support a large amount of weight from their jaws. I think the study was done with snook, but the same could also apply to any larger fish.
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