Stock Photo - HANDOUT - 18 April 2008, Schleswig-Holstein, Kiel: Sugar seaweed is pulled out of the Kiel Fjord. A German-Chinese research team coordinated by the Geomar Helmholtz Centre for Ocean Research in Kiel has now developed a biological plant protection system for marine algae. The Kiel scientists and their colleagues from the Ocean University of China in Qingdao succeeded in effectively protecting seaweed from certain pathogens in offshore farms without chemicals, as field trials have shown. (on dpa ""Researchers develop biological plant protection for algae farms"") Photo: Esther Rickert/Geomar/dpa - ATTENTION: Only for editorial use in connection with the current reporting and only with complete mention of the above credit. - Kiel/Schleswig-Holstein/Germany