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76The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
77Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
78The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
79Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
80The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
81A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
82An investigation into the effects of Alton sewage works on the River Wey North
83Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
84Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary
85Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
86Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
87Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
88The 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
89The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
90Assessment 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
91Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3
92Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region
93(3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
94Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001)
95The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
96Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
97Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
98Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
99An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
100An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96