they found these pieces of plastic in hatem's faeces.e pollution of the seas is another huge threat to the turtles. around two thirds of the animals examined here have plastic inside their bodies. the scientists record and keep everything they find. olfa: a turtles are very important for the marine ecosystem. they maintain the balance in the foodchain. the loggerheadurtle, for examfish, jellyfish.ng. it makes sure no individualuscs, species can take over. if things start to tip out of balance, the sea turtle helps to get things back into equilibrium. >> one of the biggest threats to the sea turtles is the fishing industry. baha landed in a fishing net as bycatch. once the juvenile turtle has recovered and is able to dive for food again by herself, she'll be released back into the sea. but first the scientists want to take blood and tissue samples to analyse her dna. the data is needed for an international research project, studying the effects of plastic pollution on sea turtles. meanwhile, efforts are underway to curb the numbers of blu