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Aughnadarragh Lough ASSI

Last updated: 5 February 2010

picture of aughnadarragh lough assi

Site No ASSI 149
Area 12.8 (ha)
Declared Date 29/01/1999
Confirmed Date 19/08/1999
County Down
Council(s) Ards BC
Down DC
Keywords Butterflies & fen

The area is particularly notable as one of the longest established colonies of the marsh fritillary butterfly in NI. The species was first recorded in 1984, with records in most years since then.

picture of bulrushesThe area is an inter-drumlin wetland with a mosaic of notable vegetation communities fringing the mesotrophic lake. Of particular importance is the marginal mossy fen, which is extensive to the south and east behind the swamp and tall herb fen that fringes Aughnadarragh Lough. The mossy fen is predominantly base-rich in type, with pockets of poor acid fen around a small remnant pocket of raised bog in the south. Wet woodland and scrub fringe the lough to the east and north. Although not a qualifying feature, the open water community is also significant, being a reasonable example of a mesotrophic lake.

The range of vegetation types associated with the site makes it one of the most diverse wetlands in County Down.

Site Related Documents

Site map (.PDF 850Kb)Opens in new window., Citation document (.PDF 140Kb)Opens in new window. and Views about Management document (.PDF 80Kb)Opens in new window..