Today, there are 18 hunting farms (four more licences have been issued to fishing farms) but they do not operate effectively and only some of them have approved extraction quotas. It is thought that the trout has been affected the most. However, detailed study of this issue has not been carried out recently. Illegal fishing on the migration routes of species such as sturgeon, together with the dams constructed along those routes, is also a big problem for the survival of these species.