Deep Sea Angling: Charter boats are based at Rosses Point , Raughley Pier, Mullaghmore, Bundoran, Killybegs and Teelin. Blue fin tuna have been caught in Donegal Bay. Other species caught frequently are pollack, ling, coalfish, spurdog, gurnard etc.
Shore Fishing: St. John’s Point on the eastern side of Killybegs is a popular hot sport for mackerel, pollack and specimen size ballan wrasse. The beach at Fintra sees catches of sea trout, dogfish, codling and occasional ray. Teelin Pier for conger.
Small Boat: The Mountcharles channel leading into Donegal town is a traditional mark for tope in sheltered waters. The inshore waters of Drumcliffe Bay and Ballisodare also see catches of tope, ray, huss, dogfish and flatfish.When to Fish: September to December for blue fin tuna. July to October for blue shark. May to November for all other species.
Comments: Donegal Bay is quite exposed and sheltered fishing in bad weather is limited. In the year 2000 the first blue fin was boated on rod and line. The Irish record blue fin tuna of 440kg held here.
http://www.fishinginireland.info/sea/north/northeastdonegal.htm