Greenpeace environmental campaigners have attempted to stop one of the world's largest trawlers reaching Port Lincoln in South Australia on Thursday.<br /><br />The campaign group has launched an online-petition to stop the Dutch-registered FV Margiris being allowed to trawl for fish off southern Australia saying the vessel is too big and will cause damage to the environment. <br /><br />Al Jazeera's Andrew Thomas reports from Hobart, Tasmania.
