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#Title
626Contribution of small streams to potential fish production in the Conwy catchment
627NRA strategy for reducing the concentration of pesticides in controlled waters
628The ecology and management of riverine trees : interim report
629Low-cost modifications of the Crump weir to improve fish passage
630Policy and practice for the protection of floodplains
631Second annual review of the Seaton, Looe and Fowey catchment management plan
632The Yarrow catchment : recommendations for statutory water quality objectives
633Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
634The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
635Guidance on the use of Bioassays in Ecological Risk Assessment
636The National Rivers Authority employee attitude survey : summary
637The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
638Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
639Pesticides in the aquatic environment 1997 : executive summary
640Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
641Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
642The Louth coastal catchment management plan : final report
643Fine sediment deposition in the River Keer : geomorphological assessment
644Draft protocol for the derivation of Toxicity Based Consents
645The Loddon catchment, Thames : recommendations for statutory water quality objectives
646Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
647Second Coniston OS map related to the Seismic Survey 1983
648Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
649Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
650Coniston OS map related to the Seismic Survey 1983