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6501Physical environment for river invertebrate communities : progress report
6502Planning for the rising tides - the Humber Estuary - consultation on managed realignment: information for the landowners and tenants - June 2002
6503Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority
6504Poole Harbour and Purbeck catchment management plan : first annual review
6505Redgrave and Lopham Fens alleviation scheme : project appraisal report : version 1.0
6506Report on alternative methods of river bank protection : Norfolk District
6507River Test catchment management plan : phase 1
6508River Test catchment management plan : phase 1. Draft.
6509River quality survey GQA assessment 1998 : Dales area freshwater rivers and canals river reach classification summary 1990-9
6510Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998
6511Upper Ouse catchment management plan : consultation report summary : March 1996
6512Notonecta viridis,
6513Rivers Swale, Ure and Ouse catchment management plan : final plan
6514Trent licensing policy review : executive summary report
6515Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
6516The River Colne Estuary subtidal biological survey 1992
6517The use of fertilizer-free buffer strips to protect dyke flora from nitrate pollution on Walland Marsh S.S.S.I
6518Effects of Electric Fishing on Fish - Technical Summary
6519Crayfish conservation (378/8/N) : interim report for 1993
6520Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
6521Mesotrophic rivers in Anglian region : phase 1 June 1994
6522Chemical Techniques Manual
6523Crangonyx pseudogracilis and Gammarus pulex
6524A report on the investigation into water contamination at Hauxton, Cambrigeshire
6525Fate and transport of phage and viruses in UK Permo-Triassic sandstone aquifers