Ar 16 Gorffennaf 2019, cyhoeddais Ddatganiad Ysgrifenedig yn cyhoeddi fy mhenderfyniad i gadarnau Is-ddeddfau Gwialen a Lein (Eogiaid a Brithyllod y Môr) arfaethedig Cymru 2017 ac Is-ddeddfau Pysgota â Rhwydi Cymru (Eogiaid a Brithyllod y Môr) 2017, a elwir yn Is-ddeddfau 'Cymru Gyfan'. 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.
On 16 July 2019, I issued a Written Statement announcing my decision to confirm Natural Resources Wales’ (NRW) proposed Wales Rod and Line (Salmon and Sea Trout) Byelaws 2017 and the Wales Net Fishing (Salmon and Sea Trout) Byelaws 2017, known as the ‘All Wales’ Byelaws. 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.