WA shark threat order rescinded Some surfers in Western Australia are calling for a cull of sharks larger than three metres. AN imminent threat order in place following a fatal shark attack in Western Australia's South West has been lifted. The WA Department of Fisheries has spent the past few days searching the area for sharks, including the one responsible for killing 35-year-old Chris Boyd on Saturday. Mr Boyd, a father of two, was surfing at the popular surf break Umbies, off Gracetown, when the shark bounced off another surfer's board and attacked him. Following efforts to capture the shark and aerial surveillance, Department of Fisheries rescinded the imminent threat order at 5pm (WST) on Monday. Shark Response Unit spokesman Tony Cappelluti said he took the issue of rescinding such an order seriously. "The attack on 35-year-old Chris Boyd on Saturday was very likely a white shark and, as the shark posed an imminent threat to water users in the area, we had no choice but to issue this order, especially as many school leavers are in the region at the moment," he said in a statement. The scientific advice is that some white sharks remain in the vicinity of an attack site for a period while others move on. There have been no further sightings of a white shark in the area and it is likely that the shark responsible for the attack is no longer in this general locality. Mr Cappelluti urged people to be cautious when entering the water at South West beaches.