151 | Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive |
152 | Riverside litter : results of the 1990 campaign and a strategy for the future |
153 | Conservation and recreation: the Wye challenge: volume 1: report of the River Wye project |
154 | The physical character of rivers and streams in the UK and Isle of Man |
155 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
156 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
157 | An investigation into the effects of Alton sewage works on the River Wey North |
158 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
159 | A brief history of the River Stour navigation : 1705 to the present day |
160 | The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish |
161 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
162 | A review of the use of multifunction wardens in the Devon Area of the South Western Region of the National Rivers Authority, with particular reference to their use within the fisheries function |
163 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
164 | East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe |
165 | 1995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments |
166 | The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates |
167 | The effects of water resources management on the rivers Bure, Wensum and Nar in North Norfolk : Final project report to the National Rivers Authority. July 1994 |
168 | The Movements of Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Lower River and Estuary of the River Conwy, North Wales |
169 | A study of the mayfly parasite Spiriopsis adipophila, Arvy and Peters (1972) (=Sprininella adipophila, Arvy and Delage 1966) in Ephemera danica from the River Pang, a tributary of the River Thames |
170 | Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent |
171 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
172 | Mercury, methylmercury and copper in the River Yare, Norfolk : report to the National Rivers Authority, Anglian Region |
173 | Evaluation of peroxygens for the amelioration of river pollution : on behalf of the Environment Agency, Thames Region |
174 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 1998-March 1999 |
175 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2001 |