Trochus, Trochus niloticus, have long been exploited for both subsistence and export in the South Pacific. On the coral reefs where they are found, most can be collected by hand or free diving. The shells are used to make jewellery and as inlay in carvings, but their primary use is in the production of mother-of-pearl clothing buttons. Such clothing buttons are in high demand in the fashion industry.
The wharf price in the Australian market is somewhere in the region of $A 2 million. There is some research being undertaken to culture Trochus by James Cook University, Townsville, Far North Queensland, Australia.