Jeanine Olsen_ZEN Site Norway (IMAGE) Smithsonian Caption Professor emeritus Jeanine Olsen of the University of Groningen, on an expedition at a ZEN site near Bodø, Norway. ZEN (Zostera Experimental Network) tracks eelgrass health at sites across the Northern Hemisphere. Credit Wytze Stam Usage Restrictions This photo may be used by journalists for media articles, provided credit is given to the photographer as listed in the photo information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.