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176Macroinvertebrates in the Kennet catchment : Part 1 - water quality monitoring
177Guide to the use of control charts in water analysis
178A Review of Methods for Assessing the Hydromorphology of Lakes
179Continuous water quality monitoring results for the Carnon river
180An assessment of the NRA algal growth inhibition test : 1993/4
181Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
182Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
183A second stage evaluation of the Grant YSI3815 Water Logger
184The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall
185An investigation of sewage on the beach at Porthcothan
186The Test catchment southern : recommendations for statutory water quality objectives
187The Worcestershire Stour catchment : recommendations for statutory water quality objectives
188An assessment of river water quality in the River Kenn
189Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
190Estuarial migration of Atlantic salmon in the river Dee (North Wales)
191The NRA in business : annual review and summary accounts 1993-94
192Cyanobacteria (blue-green algae) in the south west region 1989
193Toxic blue-green algae : a report by the National Rivers Authority
194Water quality investigations in the Newlyn river catchment
195An assessment of water quality in the River Yarty catchment
196Artificial recharge to groundwater in the Otter valley
197The Ely Ouse catchment management plan : final plan : January 1994
198Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997
199Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus
200Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990