Looks like you were checking out a bat fish & got nailed in the leg by 'something.' But I didn't see what.
Interesting the different standards. In the mainly land-based recreation of 'field herping' (searching out reptiles & amphibians in the wild), to uncover, capture, pose with & pose an animal for examination or photography before release is widely accepted. If I wade into a creek or stream & grab a common snapping turtle, rat snake or what-not, hold it up while a buddy takes pictures, etc..., hardly anybody challenges that. Like so:
But you touch a sea creature and you're the terror of the ecosystem! I'm not sure where the proper balance lies, but from what I understand we create considerable disturbance just by diving & finning around the habitat blowing bubbles.
Richard.