Common Shore Crab Tank (image) Queen's University Belfast Share Print E-Mail Caption The tank used in the study housed two shelters for the crabs. Credit Queen's University Belfast Usage Restrictions Embargoed until 2300 GMT / 1800 BST Wednesday 16 January 2013. 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.