2007. Nitellopsis obtusa, an invasive alga in the family Characeae (stoneworts), was first recorded in Ireland in this lough in 2016. In 2021, invasive quagga mussels were discovered in the lake and in Lough Ree by a research team from UCD. The North-East Shore is listed as a Special Area of Conservation. Towns/villages Ballina Dromineer Garrykennedy Kilgarvan Killaloe Mountshannon Portroe Portumna Scarriff (location of regional Waterways Ireland office) Terryglass Whitegate See also List of loughs in Ireland References aerial view of Lough Derg's northern shores, featuring Terryglass Drominagh and Kilgarvan Quay Alien species threatening ecology of Lough Derg Irish Examiner, 18 February 2011 Asian clams threaten Lough Derg fish stock Dan Danaher, The Clare Champion, 21 June 2012. Lakes of County Galway Lakes of County Clare River Shannon Lakes of County Tipperary