Algal biosensors for aquatic ecosystems monitoring C. Durrieu, C. Tran-Minh, J. M. Chovelon, L. Barthet, C. Chouteau and C. Védrine Eur. Phys. J. Appl. Phys., 36 2 (2006) 205-209 Published online: 11 October 2006 DOI: 10.1051/epjap:2006112