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251Catches of migratory fish in the River Don, Aberdeenshire
252Stream survey and assessment in the Ashford and Folkestone areas
253Lakes, Ponds and Reservoirs in the Southern Region (NRA)
254The evaluation of an orion ammonium ion selective electrode (220/15/T)
255Anthropogenic Impacts on the Hydrology of Rivers and Lochs
256Model For Investigating The Impacts Of Groundwater Abstraction
257The Impact of Grazing and Upland Management on Erosion and Runoff
258Water resources for the future : a strategy for Midlands Region
259Water resources for the future : a strategy for Southern region
260The feasibility of biomanipulation in reservoirs and deeper lakes : draft final report
261Distribution of Azolla in the Great Ouse catchment
262Non-compliance of the Bidwell Brook with river quality objectives
263An investigation into the sewage system and storm overflow at Beer (1997)
264River Axe Fish Study - Evaluation of Fish Movements in the Estuary
265Sustainable urban drainage : an introduction : protecting the quality of our environment
266Method for the assessment of river water quality using benthic macroinvertebrates
267The National Groundwater and Contaminated Land Centre (NGWCLC)
268The greening of Grasmere: its plankton periodicity in 1988
269Policy and practice for the protection of groundwater - Thames region appendix
270The Yarrow catchment : recommendations for statutory water quality objectives
271Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
272The Louth coastal catchment management plan : final report
273Fine sediment deposition in the River Keer : geomorphological assessment
274Snapshots of the environment : a new environmental approach
275The Loddon catchment, Thames : recommendations for statutory water quality objectives