Conservation status

Most patellogastropods are relatively common and broadly distributed. One exception is a group of Patella species endemic to the Azores that have been subject in recent years to over harvesting. There are also other species groups that are restricted to the Hawaiian Islands, and a unique brackish-water species that is known only from estuaries in India and Burma and has not been seen alive in more than 100 years.

One species is listed as Extinct by the IUCN: Lottia alveus. The extinction of this species does not appear to have been related to human activities. However, current local declines of patellogastropod species (such as in the Azores and the Hawaiian Islands) are almost always associated with over harvesting by humans for food.

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