Two men with addresses in Dublin have appeared in Monaghan District Court charged in relation to dead coarse fish.
Both men were convicted and fined €200 each for possession of 33 dead coarse fish.
The location that this illegal activity was carried out was at Lisnashannagh Lake, Co. Monaghan.
Legal costs amounting to €1,000 was also granted to Inland Fisheries Ireland.
IFI Fisheries Officers had been carrying out surveillance of the area in recent months.