176 | 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 |
177 | 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 |
178 | 1995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments |
179 | The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates |
180 | The behaviour of adult salmon (Salmo salar L.) in the River Tay as determined by radio telemetry |
181 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
182 | Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996 |
183 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
184 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
185 | The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions |
186 | A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89 |
187 | Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system |
188 | Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual) |
189 | Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region |
190 | A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994 |
191 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
192 | Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994 |
193 | Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example |
194 | An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989 |
195 | Mercury, methylmercury and copper in the River Yare, Norfolk : report to the National Rivers Authority, Anglian Region |
196 | An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96 |
197 | Evaluation of peroxygens for the amelioration of river pollution : on behalf of the Environment Agency, Thames Region |
198 | A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake |
199 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 1998-March 1999 |
200 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2001 |