More than 500,000 fish fry are released into the Hongze Lake in Huai’an City, Jiangsu Province on June 6, observed in China as the national fish releasing day to help boost fish stock and promote ecological awareness. (CFP Photo) 

More than 500,000 fish fry are released into the Hongze Lake in Huai’an City, Jiangsu Province on June 6, observed in China as the national fish releasing day to help boost fish stock and promote ecological awareness. (CFP Photo)

More than 500,000 fish fry are released into the Hongze Lake in Huai’an City, Jiangsu Province on June 6, observed in China as the national fish releasing day to help boost fish stock and promote ecological awareness. (CFP Photo)

More than 500,000 fish fry are released into the Hongze Lake in Huai’an City, Jiangsu Province on June 6, observed in China as the national fish releasing day to help boost fish stock and promote ecological awareness. (CFP Photo)

More than 500,000 fish fry are released into the Hongze Lake in Huai’an City, Jiangsu Province on June 6, observed in China as the national fish releasing day to help boost fish stock and promote ecological awareness. (CFP Photo)