The best studied and regulated black coral fisheries are in Hawaii, where they have been harvested since the 1960s. In the Caribbean harvesting is typically done to produce jewelry for sale to tourists, and has followed a boom-and-bust cycle, where new coral populations are discovered and overexploited leading to rapid declines. For example, Cozumel, Mexico, was famed for dense black coral beds that have been harvested since the 1960s leading to widespread black coral population declines. Despite improvements in management in Cozumel, including no harvesting permits issued since the mid-1990s, the black coral population had failed to recover when assessed in 2016. Though it is illegal to move black corals across international borders without authorization, as they are listed in Appendix II of the Convention on International Trade in Endangered Species (CITES), it is still possible to buy them.