Our reporter Liu Lishan reported that "From March 22 to now, we have completed 16 batch testing of river crabs, and have timely handled the quarantine certification of aquatic fry, which has successfully solved the 'last mile' problem of crab farmers in spring production."4 On March 10, Sun Na, head of the laboratory of the R&D Center of Panjin Photosynthetic Crab Industry Co., Ltd., told reporters.