The otolith is the fish equivalent of a black box. One warehouse in Bergen contains several million otoliths dating from 1906 to the present day.
Able-bodied seaman Andreas Wolden takes 2,000-3,000 photos on each trip to the polar regions. As a keen photographer, he never tires of meeting polar bears.
Below the sea’s surface, the cod spawning season is now well underway. We have trapped cod in a pen rigged with cameras and hydrophones - you can follow the spawning live.