A litter contains 1–5 young, each measuring about across. Males mature sexually at across, and females at across. The tail spine of the longtail stingray is potentially dangerous to humans. This species is of some commercial importance in Mexico, where it is sold fresh or dried and salted. This species is likely landed by inshore fisheries targeting shark and ray throughout Central America; it is caught by bottom trawls and longlines, and is especially susceptible to gillnets as its tail spine easily becomes entangled in the mesh. The impact of fishing on its population is unknown, as fishery landings in the region are poorly monitored and the longtail stingray is not reported separately from other ray species. As a result, the International Union for Conservation of Nature (IUCN) has listed this species as Data Deficient, while noting that its slow reproductive rate would limit its capacity to recover from over-exploitation.