Following discovery of the presence of the non-native zebra mussel in the Shannon catchment earlier this year, the Marine Institute initiated an urgent investigation, the results of which have formed the basis for management strategies to contain and deal with the phenomenon. The Marine Institute has brought together all the agencies involved, including the Central, Shannon and Northern Regional Fisheries Boards, the Environmental Protection Agency, my Department, the Department of Arts, Heritage, Gaeltacht and the Islands, and the National Parks and Wildlife Service. A zebra mussel steering group has been established representative of all interests under the leadership of the Marine Institute to implement an immediate four-point