THE WITHIN-CATCHMENT INVASION OF THE NON-INDIGENOUS SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA),IN UPLAND RIVERSD. H. BUBB, T. J. THOM and M. C. LUCASBull. Fr. Pêche Piscic., 376-377 (2005) 665-673DOI: https://doi.org/10.1051/kmae:2005023