Dead fish and marine life along the shoreline of Pasir Ris beach, Singapore on Mar 03 2015. Thousands of dead fishes have washed up at Pasir Ris beach, Singapore since the weekend on Feb 28 2015. The Agri-Food & Veterinary Authority of Singapore (AVA) said the post-mortem results of fish samples collected from the affected farms indicated the fish had died as a result of gill damage caused by plankton in seawater.