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701Contribution of small streams to potential fish production in the Conwy catchment
702NRA strategy for reducing the concentration of pesticides in controlled waters
703The ecology and management of riverine trees : interim report
704Low-cost modifications of the Crump weir to improve fish passage
705Policy and practice for the protection of groundwater - Thames region appendix
706Policy and practice for the protection of floodplains
707Second annual review of the Seaton, Looe and Fowey catchment management plan
708The Yarrow catchment : recommendations for statutory water quality objectives
709Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
710The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
711Guidance on the use of Bioassays in Ecological Risk Assessment
712The National Rivers Authority employee attitude survey : summary
713The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
714Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
715Pesticides in the aquatic environment 1997 : executive summary
716Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
717Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
718The Louth coastal catchment management plan : final report
719Fine sediment deposition in the River Keer : geomorphological assessment
720Snapshots of the environment : a new environmental approach
721Draft protocol for the derivation of Toxicity Based Consents
722The Loddon catchment, Thames : recommendations for statutory water quality objectives
723Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
724Second Coniston OS map related to the Seismic Survey 1983
725Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983