Divers enter the I&J Predator tank with a plastic sleeve. A small holding tank sits on the surface. A ragged tooth shark keeps a watchful eye. Using wooden poles, divers attempt to steer the shark towards the sleeve. One of the Ragged Tooth sharks escaped briefly‚ but was nabbed at the second attempt. Its bigger companion was easily guided by the divers into a condom-like “sleeve”‚ which was then hoisted to the surface by staff outside of the tank on Monday.A tap to the nose encourages the shark to turn towards the sleeve.Both sharks are due to be tagged and released into the ocean at Mossel Bay. After being hoisted out of the tank at the aquarium‚ they were transferred to a 6‚000 litre holding tank which is being transported by truck to Mossel Bay.But the shark is not convinced, prompting a different approach from the aquarium's resident shark wrangler. A school of jittery Yellowtail look on, rooting for the divers.  The move is part of a countrywide shark research programme based on data obtained from shark tracking devices.Each shark is tagged before being released‚ at different locations along the coast depending upon the time of year.At last the ragged tooth shark is “in the bag”.“As with all our previous shark releases‚ we are really excited as we will receive data from these transmitters for the next 10 years and through that will continue to contribute to the scientific research being conducted on sharks around the southern African coast‚” said aquarium operations manager Tinus Beukes.A further two "raggies" are due to be captured and released next week.The shark is hoisted to the surface, transferred into the holding tank and onto a truck bound for Mossel Bay.Once placed in the holding tank the sharks are transported on a flat-bed truck fitted with complete life support systems “that will maintain water quality during the journey to Mossel Bay and overnight‚” said aquarium spokesman Renée Leeuwner.TMG digital/Cape Town Bureau..