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
Ostrich leather sought after portion and since it constitutes such a small area of the skin, "full quill" ostrich products are considerably dearer when compared to bovine leather. This, along with the fact that it is one of the strongest commercial leathers, leads ostrich leather to be seen as a luxury item. The commercial farming of ostriches first began in the 1850s when pioneering farmers located in Oudtshoorn, South Africa, saw great economic potential in harvesting ostrich feathers. Horse-drawn carriages made large, dramatic hats fashionable. Ostrich feathers are some of the most intricate and grandiose in the world so it only made