Weishan Lake mussel is a geographical indication certification trademark.

Weishan Lake mussel is a specialty of Weishan County, Jining City, Shandong Province. Weishan Lake mussels won the National Geographical Indication Certification Trademark.

River mussels are divided into triangular sail mussels and pleated crown mussels, which are excellent varieties for freshwater pearl cultivation. Clam shells are a traditional Chinese medicine, a good raw material for shell carving crafts, and an important natural fuel for herring and carp torpedoes. They can also be used as feed for livestock and poultry, and can also be eaten by humans. River mussels can also be used to monitor pollution from heavy metals, organic pesticides and radioactive substances. A more desirable use is to use it to cultivate pearls, which are of high value. River mussels are not very mobile and have a small range of activities, making them easy to catch. Now fishermen in the Weishan Lake District have started cultivating pearls from river mussels in the Great Lakes since 1968. They usually use the method of polyculture of fish and clams. The fish eat grass, the clams eat dung, and the pearls are cultured in the clams, which has achieved good economic benefits.

In 2013, the "Weishan Lake Mussel" applied by the Weishan County Fisheries Association was approved and registered as China's National Geographical Indication Certification Trademark by the Trademark Office of the State Administration for Industry and Commerce. The trademark registration number is: 12475922.

Weishan County Fisheries Association

12475922

Live mussels