Red Abalone

Haliotis rufescens

The red abalone (Haliotis rufescens) is a large marine snail of the northeastern Pacific, living on cool rocky reefs and kelp-forest edges. It has a brick-red outer shell, an iridescent interior, a row of respiratory holes, and a muscular foot used to cling tightly to stone while grazing kelp and other algae. The species has long mattered to coastal foodways, shell craft, fisheries, aquaculture, and reef ecology, but wild populations have been pressured by harvest, disease, warming events, and kelp loss.

Current human work with red abalone centers on aquaculture, restoration, research, and regulated fisheries rather than casual collection. Farms need clean cold seawater, algae or prepared feeds, careful stocking density, and monitoring for stress and diseases such as withering syndrome. Restoration projects may involve hatchery juveniles, kelp recovery, reef surveys, and outplanting trials before any harvest is considered. Rules vary by coast, season, and population status, so anyone encountering red abalone in the wild should treat collection as a regulated activity.