rivers for which there is insufficient scientific information or have a rod catch of less than ten salmon remain closed a scheme of rehabilitation of rivers was introduced with priority given to rivers which were below the conservation limit in areas of sac s funded through the introduction of a salmon conservation component on all angling and commercial licence sales this increase would roughly equate to the reduction in exploitation as a result of the closure of the mixed stock fishery in and many of these indices were down with some significant drops despite the continued closure of the mixed stock fishery at sea