These Regulations modify: (a) in respect of salmon fishing, the ordinary licence duty in respect of an ordinary fishing licence authorizing the use of a fishing engine of a kind as specified in column in the Schedule to these Regulations; (b) the licence duty in respect of an oyster fishing licence; (c) the amount specified in section 159(1)(b)(ii) (inserted by section 20 of the Fisheries (Amendment) Act 1994) of the Fisheries (Consolidation) Act 1959; and (d) the amount specified in section 160(1)(b) (inserted by section 20 of Fisheries (Amendment) Act 1994) of the Fisheries (Consolidation) Act 1959. The proceeds of the levy on salmon fishing will be invested in wild salmon management initiatives designed to rehabilitate wild salmon stocks and habitats.