 A particularly rich genus in the river basin is the potamid "Sinopotamon".The Chinese mitten crab is catadromous (migrates between fresh and saltwater) and it has been recorded up to up the Yangtze, which is the largest river in its native range.It is a commercially important species in its native range where it is farmed, but the Chinese mitten crab has also been spread to Europe and North America where considered invasive.