Staff members demonstrate fish caught during a trial fishing in the run-up to a winter fishing festival on the frozen surface of Changling Lake, Harbin, capital of Northeast China's Heilongjiang province, Dec 24, 2012. Each year, the fishery of Changling Lake turns out 100,000 kilograms of commercial fish. [Photo/Xinhua] 

A staff member demonstrates fish caught during a trial fishing in the run-up to a winter fishing festival on the frozen surface of Changling Lake, Harbin, capital of Northeast China's Heilongjiang province, Dec 24, 2012. Each year, the fishery of Changling Lake turns out 100,000 kilograms of commercial fish.[Photo/Xinhua] 

Staff members do trial fishing in the run-up to a winter fishing festival on the frozen surface of Changling Lake, Harbin, capital of Northeast China's Heilongjiang province, Dec 24, 2012. Each year, the fishery of Changling Lake turns out 100,000 kilograms of commercial fish.[Photo/Xinhua] 

Staff members do trial fishing in the run-up to a winter fishing festival on the frozen surface of Changling Lake, Harbin, capital of Northeast China's Heilongjiang province, Dec 24, 2012. Each year, the fishery of Changling Lake turns out 100,000 kilograms of commercial fish.[Photo/Xinhua] 

A man poses for a photo with fish during an ice fishing festival in Zhenlai county, Northeast China's Jilin province, Dec 24, 2012.[Photo/Xinhua] 

Photo taken on Dec 24, 2012 shows fish caught by fishmen during an ice fishing festival in Zhenlai county, Northeast China's Jilin province.[Photo/Xinhua] 

A woman kisses a big fish caught in Shitou Koumen reservoir in Changchun city, capital of Northeast China’s Jilin province, on Dec 23, 2012. [Photo/asianewsphoto]

Fishermen drag their fishing net across the frozen ice at dawn at Shitou Koumen reservoir in Changchun city, capital of Northeast China’s Jilin province, on Dec 23, 2012. [Photo/asianewsphoto]