“Mae pobl yng Nghymru wedi bod yn ddigon ffodus i fwynhau presenoldeb pysgod mudol eiconig fel yr eog, y sewin, llysywen bendoll y môr, llysywen Ewrop neu'r herlyn am filenia.
“People in Wales have been fortunate enough to enjoy the presence of iconic migratory fish like the Atlantic salmon, the sewin, the sea lamprey, the European eel or the shad for millennia.