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 packing. Because it is expensive to manufacture all three processes, countries that produce ostrich skins on a smaller scale, export them at the "raw" and "crust" stages. South Africa is an important processor of finished skins for the main leather manufacturers in Japan. Other African countries engaged in ostrich skin processing are Zimbabwe, Namibia, Botswana. Botswana markets directly to South African tanneries. South African tanneries receives about 200,000 skins a year from the ostrich abattoirs of the region and from elsewhere in the world it receives around 15, 000 skins. South African tanneries export around 90% of its finished leather