Natural conditions

Panjin's aquatic wealth is inextricably linked with local natural conditions.

Located on the coast by the Bohai Sea, Panjin has a warm temperate and semi-humid continental monsoon climate. The annual average temperature is 8.3 degrees Celsius.

Also, the soil of the city is rich in trace elements and organic substances.

There are 21 rivers flowing through the city, which form a coastal and estuarine delta wetland ecosystem consisting of water, mudflats and reed marshes.

"Crabs are a migratory species. They spawn in the sea and grow in freshwater. Panjin has so many coastal wetlands blending with seawater and freshwater with brackish salinity of 2 percent to 3 percent," said Wang Wu, a veteran professor engaged in aquaculture research at Shanghai Ocean University.