SHARE Jet-ski riders in Dubai have been urged to slow down to help protect marine life after an adult green turtle was found dead. Experts renewed their call to increase protection for sea creatures after the over 20 year old reptile was found floating upside down near Nessnass Beach in Jumeirah on Saturday. The turtle was apparently killed by a jet-ski, said kite-surfer Alexandre Juignet, 39, who spotted it in the sea before the current washed it to shore. The French finance consultant said its shell had been crushed. "The impact must have been messy because the shell was cracked, I would say about 60 per cent completely smashed," he said.