Crayfish
Lough Lene had a notable population of fresh water crayfish, a species that is listed on Annex II of the E.U. Habitats Directive. This species disappeared from Lough Lene in 1987 following an outbreak of crayfish fungus plague. The species was re-introduced and breeding was recorded in 1995. Since then, a further outbreak of the crayfish fungus plague has once again led to the disappearance of the species from Lough Lene.
Read more about this topic: Lough Lene