Lough Arrow has been designated a Special Area of Conservation as a hard water lake habitat.
2.
It is a clear hard water lake with marl deposition particularly noticeable along long stretches of its shores.
3.
Templehouse Lough is part of the Templehouse and Cloonacleigha Loughs Special Area of Conservation as a hard water lake habitat.
4.
Cloonacleigha Lough is part of the Templehouse and Cloonacleigha Loughs Special Area of Conservation as a hard water lake habitat.
5.
Here, many former " Chara " habitats ( H3140 ) have been polluted by either toxins or excessive amounts of nutrients ( in particular phosphates and nitrogen ), but a few large lakes and ponds remain . " Chara " is found growing in the very clean hard water lakes of Thy National Park like Nors S?for example.