Crayfish in an Artificial Stream (image) Cary Institute of Ecosystem Studies Share Print E-Mail Caption The spinycheek crayfish used in the study were collected from a local stream. Credit AJ Reisinger Usage Restrictions May be used to promote the press release this image is attached to. Share Print E-Mail 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.