1 | Impact of the signal crayfish Pacifastacus leniusculus and its associated crayfishery on the River Thame |
2 | Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3 |
3 | Identification of water quality problems in the Strat and Neet catchments |