近畿大学
In Bangkok, 2008 Hagen was presented with the Friend of the Sea, Sustainable Seafood Award in acknowledgement of being the first organisation in the world to create an artificial breeding regime for the Southern bluefin tuna. Time magazine rated this milestone as the second best invention of 2009. In developing this technology, Stehr established the first formal collaboration agreement between Kindai University of Japan and Australia for the propagation of tuna.