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176Development of an Estuarine Classification Scheme for the Water Framework Directive
177Summary of monitoring activities on the blackwater estuary
178Guide to the use of control charts in water analysis
179A Review of Methods for Assessing the Hydromorphology of Lakes
180A survey of trace metals in biota of the Mersey estuary 1993
181Continuous water quality monitoring results for the Carnon river
182An assessment of the NRA algal growth inhibition test : 1993/4
183Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
184Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
185A second stage evaluation of the Grant YSI3815 Water Logger
186The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall
187An investigation of sewage on the beach at Porthcothan
188The Test catchment southern : recommendations for statutory water quality objectives
189The Worcestershire Stour catchment : recommendations for statutory water quality objectives
190An assessment of river water quality in the River Kenn
191Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
192The quality of rivers and estuaries in Northumbria region 1990
193Estuarial migration of Atlantic salmon in the river Dee (North Wales)
194The NRA in business : annual review and summary accounts 1993-94
195Cyanobacteria (blue-green algae) in the south west region 1989
196Toxic blue-green algae : a report by the National Rivers Authority
197Investigation of salinity in the river Thurne catchment of North East Norfolk
198Water quality investigations in the Newlyn river catchment
199Report on monitoring of environmental quality in the Severn Estuary
200Artificial recharge to groundwater in the Otter valley