Stoneflies
The Owenduff drains the Nephin Beg wilderness into Tullaghan Bay — IFI's own overview describes it as an exceptionally attractive salmon and sea-trout fishery, though that language pre-dates current public reporting. The blanket-bog, wild-Erris character is the real reason it belongs in the headline group. Peaty water with very quick response to rain. Completely spate-dependent: unfishable in low water, brilliant in the 12–24 hours after rain. Salmon and sea trout from June. Current public catch evidence is thinner than for stronger headline systems — the story here is about wildness, peatland hydrology and migratory-fish presence rather than a clean recent results graph. For 2026 this is a catch-and-release fishery under the Wild Salmon & Sea Trout Tagging Scheme — all salmon and grilse must be returned.
EPA monitoring of the Owenduff's Blacksod reaches confirms mayflies, stoneflies, caddis, aquatic diptera and gammarus are present. This is food-presence evidence from kick sampling only, not a record of emergence timing or a visible hatch.
- Peat