Cod stick to then own shipwreck

摘要

When PhD student Junita D Karlsen from DTU Aqua (the Technical University of Denmark's National Institute of Aquatic Resources) plotted the geographical positions of 15 acoustically tagged cod on a map, the cod's positions formed a perfect silhouette of a shipwreck. This surprised her - not because the cod were located at a shipwreck, as it is well known that cod often gather at wrecks, but because her results show that the same cod return day after day to the same wreck and therefore can be said to have 'their own' local wreck.