Aerial photo taken on March 15, 2019 shows the area of cultivating sea cucumbers in Xiwei Village under Xinan Town of Xiapu County, southeast China's Fujian Province. The local government has promoted the industry of sea cucumbers in recent years to help increase fishermen's income. The output of sea cucumbers in Xiapu County reached over 20,000 tons in 2018. (Xinhua/Wei Peiquan)