Derogations for grazing levels could be considered if there are high levels of wild geese grazing on the marsh producing a very short turf over a wide area.
Gellid ystyried rhanddirymiadau ar gyfer lefelau pori os oes lefelau uchel o wyddau gwyllt yn pori ar y morfa gan gynhyrchu tywarchen fyr iawn dros ardal eang.