BIOCIDE TREATMENT OF PONDS IN SCOTLAND TO ERADICATE SIGNAL CRAYFISH S. PEAY, P. D. HILEY, P. COLLEN and I. MARTIN Bull. Fr. Pêche Piscic., 380-381 (2006) 1363-1379 Published online: 01 April 2008 DOI: 10.1051/kmae:2006041