Figure 8: Pelagic fish technicians Adam Custer, Ørjan Sørensen and Christine Djønne at the Institute of Marine Research (IMR) in Norway taking out tiny otoliths, from a huge head of Atlantic bluefin tuna (ABFT) caught in western Norway. Otoliths (ear bones) are taken out to determine the age of individuals. (Photo: Erlend Astad Lorentzen, IMR).
