Summerhill Lough ASSI
| Site No | ASSI 080 |
|---|---|
| Area | 4.8 (ha) |
| Declared Date | 19/09/1994 |
| Confirmed Date | 07/03/1995 |
| County | Fermanagh |
| Council(s) | Fermanagh DC |
| Keywords | Marl Lake Invertebrates White-clawed crayfish Summerhill Lough |
Physiographic interest is of the presence of calcium carbonate deposits, or marl, which is precipitated out of the calcium-rich water with its associated wetland flora and fauna including submerged beds of stoneworts along with a rare species of waterbeetle.
Water chemistry reflects the underlying geology. Marl Lakes are a relatively rare lake type in NI and this is one of the best.
The lough exhibits the natural succession from open water to terrestrial vegetation and includes a number of scarce plant communities, in addition to several rare plant species.
Site Related Documents
Site map (.PDF 376 Kb)
, Citation document (.PDF 119Kb)
and Views about Management document (.PDF 81Kb)![]()







