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Castlewellan Lake ASSI

Last updated: 5 February 2010

 

picture of Castlewellan Lake

Site No ASSI 230
Area 47.07 (ha)
Declared Date 16/12/2003
Confirmed Date 15/07/2004
County Down
Council(s) Down DC
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The site, Castlewellan Lake, is a mid-altitude lake that lies in the valley between Slievenaslat and Slievebeg, within the grounds of Castlewellan Forest Park.

It has been declared as an ASSI because of its aquatic flora and fauna, which are dependent on the unpolluted water and low levels of nutrients.
The diverse substrate of the lake ranges from boulder and rock, to sand and gravel on the deeper waters.
This provides a variety of niches for a wide range of plants and animals.

Such lakes are becoming increasingly rare in Northern Ireland due to pollution.
picture of a swimming otterThe floral interest in the site is focused on the aquatic plant community which is dominated in the shallows by shoreweed, while the rare quillwort is found in the deeper waters. Pondweeds and alternative water-milfoil form submerged beds.
The site is also valuable for wetland animals including birds and invertebrates.
There is evidence that otters regularly frequent the site.

            

              

              

          

Site Related Documents

Site map (.PDF 715Kb)Opens in new window., Citation document (.PDF 94Kb)Opens in new window. and Views about Management document (.PDF 50Kb)Opens in new window..