According to the Jiangsu public news channel "News 360" reported: Recently, Nantong Tongzhou citizen Mr. Xing dug up five large river mussels, each with a length of more than 30 centimeters, and it is really rare to have so many "Big Mac" river mussels.
These five large river mussels are fan-shaped throughout, and the black shell is still shining. The largest of the five river mussels, reaching a length of 38 cm. Mr. Xing said that the river mussels dug up before were almost the size of the palms, and this time the river mussels were so large that they felt particularly strange.
River mussels, like trees, have annual rings. There are many concentric circular rings on the shell of the river mussel, which is the annual ring of the river mussel, carefully count these large river mussels, they are more than 20 years old.
River mussels can grow so large, on the one hand, the ecological environment is getting better and better, on the other hand, because there is no overfishing. Mr. Xing said that it is not easy for river mussels to grow so big, and under the witness of reporters, they are all released.