THE arrival of almost 20 alien species in Lough Derg has increased the risk of further unwanted invaders, which could change the entire ecology of the lake.

THE invasive Asian clam has just been discovered in Lough Derg where it is likely to have serious impact on the biology of the lake, an expert has warned.

CONCERN about the proposed extraction of 500 million litres daily of water from Lough Derg during prolonged periods of low-flow and drought has been expressed by a north Tipperary marine biologist.

RIVERS and canals could have an important role to play in the country’s transport system, north and south.

PREVIOUS generations ate a lot of shellfish - they overfished stocks almost to extinction, a process aided by pollution.