Institution: | (1) Finnish Environment Institute, P.O. Box 140, FIN-00251 Helsinki, Finland;(2) Joensuu Research Centre, Finnish Forest Research Institute, P.O. Box 68, FIN-80101 Joensuu, Finland;(3) North Karelia Regional Environment Centre, P.O. Box 69, FIN-80101 Joensuu, Finland;(4) Present address: Kotka Maretarium Oy, Sapokankatu 2, FIN-48100 Kotka, Finland;(5) Pirkanmaa Regional Environment Centre, P.O. Box 297, FIN-33101 Tampere, Finland |