Sorry guys but I still haven't had time to take the camera in to get fixed so you will have to suffer the poor sound quality until I can remaster the clips.

the point to iki the fish is behind the eye and in line with the lateral line. You need to break through the brain case in order to hit the brain. I pulled up short just as I realised it was going to be dissected that night. I think you would have to be very unlucky to damage the otoliths though given their size and the fact that there are three pairs in there. So ikijimied fish can still be donated for the frame research I think. I'll double check with Ian just in case. But I think he did say on the night that it was fine to iki them first.