726 | Contribution of small streams to potential fish production in the Conwy catchment |
727 | NRA strategy for reducing the concentration of pesticides in controlled waters |
728 | The ecology and management of riverine trees : interim report |
729 | Low-cost modifications of the Crump weir to improve fish passage |
730 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
731 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
732 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
733 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
734 | Guidance on the use of Bioassays in Ecological Risk Assessment |
735 | The National Rivers Authority employee attitude survey : summary |
736 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
737 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
738 | Pesticides in the aquatic environment 1997 : executive summary |
739 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
740 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
741 | The Louth coastal catchment management plan : final report |
742 | Fine sediment deposition in the River Keer : geomorphological assessment |
743 | Snapshots of the environment : a new environmental approach |
744 | The Loddon catchment, Thames : recommendations for statutory water quality objectives |
745 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
746 | Second Coniston OS map related to the Seismic Survey 1983 |
747 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
748 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
749 | Coniston OS map related to the Seismic Survey 1983 |
750 | The flood of February 1990 : technical services flood monitoring report |