Japanese angelshark is eaten and the rough skin is made into a type of leather called shagreen for use in wood finishing. Angel sharks in general are highly threatened by commercial trawl fisheries due to their susceptibility to capture and low rate of reproduction, and angel shark species elsewhere are known to have declined markedly under fishing pressure. Trawling activity in the Yellow Sea and other parts of the northwestern Pacific is intense and, coupled with pollution, has had a serious impact on the local ecosystem. The Japanese angelshark population is suspected to have declined by up to 50% or more under
Shagreen Shagreen became fashionable again, partly due to the renewed interest in the Art-deco period. A range of items, including furniture such as small tables, have been manufactured since then, providing work for a small number of craftspeople catering to the luxury market. Small decorative items made of shagreen and silver have become popular in Southeast Asia; most are manufactured by high-end design studios in Thailand. In medicine, a shagreen patch is a patch of shagreen-like rough skin, often on the lower back, found in some people with the genetic condition tuberous sclerosis. Shagreen Shagreen is a type of rawhide consisting