Due to the low seawater temperature in Bohai Bay, it is necessary to wait until early April to catch a large number of shrimps and crabs.

With the orderly advancement of all walks of life in Tianjin, the fishery in Tianjin Binhai New Area started in an all-round way this spring. Among them, Pipi shrimp has become the main species. Because it is the best time to eat Pippi shrimp, the Pippi shrimp caught by fishermen was "robbed and emptied" as soon as they landed.