Water sampling (IMAGE) University of Washington Caption Ryan Kelly, left, and Abigail Keller collect water samples in Drayton Harbor, Washington, in 2020. The team analyzed the samples in each study location for European green crab DNA. Credit Emily Grason/Washington Sea Grant 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.