The purpose of these Byelaws, which came into force on 1 January 2020, is to help reverse the decline in salmon and sea trout stocks in Wales.
Pwrpas yr Is-ddeddfau hyn, a ddaeth i rym ar 1 Ionawr 2020, yw i helpu i wyrdroi'r dirywiad yn y stoc eogiaid a brithyllod y môr yng Nghymru.