Workers harvest seaweeds off the coast of Rongcheng, east China's Shandong Province, June 1, 2014. In Rongcheng, workers are busy collecting edible seaweeds as the harvest season arrives. Rongcheng is a major planter and producer of edible seaweeds in China, turning out over a half of the country's seaweed products annually. (Xinhua/Ren Mengxue)