Cladagh (Swanlinbar) River

Site details

UK map showing location of Cladagh (Swanlinbar) River Special Area of Conservation/Site of Community Importance.
Location of Cladagh (Swanlinbar) River SAC/SCI/cSAC
 

Note:

When undertaking an appropriate assessment of impacts at a site, all features of European importance (both primary and non-primary) need to be considered.

Annex I habitats that are a primary reason for selection of this site

Not applicable

Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site

3260 Water courses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation

Annex II species that are a primary reason for selection of this site

1029 Freshwater pearl mussel  Margaritifera margaritifera
The Cladagh (Swanlinbar) River rises on Cuilcagh Mountain and flows through County Cavan in the Republic of Ireland before crossing the border into County Fermanagh in Northern Ireland, and eventually entering Upper Lough Erne. It is a moderately large river, being ultra-oligotrophic in its upland reaches within the Republic of Ireland, before gradually becoming oligotrophic and oligo-mesotrophic through its middle and lower reaches within Northern Ireland. The freshwater pearl mussel Margaritifera margaritifera population, which is estimated to have a minimum number of 10,000 individuals, is confined to 6 km of undisturbed river channel in the middle section of the river. It is one of the largest known populations surviving in Northern Ireland.

Annex II species present as a qualifying feature, but not a primary reason for site selection

Not applicable.


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