Salmon telemetry (IMAGE) DOE/Pacific Northwest National Laboratory Caption PNNL scientists collected more than 5 million data points about how fish moved through the Columbia River. Credit Illustration by Melanie Hess | Pacific Northwest National Laboratory Usage Restrictions No restrictions. License Public Domain 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.