Sampling in lake Hotagen, Sweden (IMAGE) Umea University Caption This is PhD student Fredrik Olajos taking samples in lake Hotagen, Jämtland, Sweden. Credit Göran Englund Usage Restrictions This photo may only be used in contexts related to this news release. 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.