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426The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
427A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
428A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
429A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
430The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
431Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
432Protecting your future : tackling flooding in the Thames Estuary through the 21st century
433The land-use planning system and the Water Framework Directive (can't read barcode)
434The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
435A review of the use of multifunction wardens in the Devon Area of the South Western Region of the National Rivers Authority, with particular reference to their use within the fisheries function
436Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
437A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids
438Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
439Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
440Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
441Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
442Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
443Report on the national marine analytical quality control scheme 1992/93 (MPMMG 93/12) : presented to the October 1993 meeting of the Marine Pollution Monitoring Management Group
444A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
445The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
4461995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments
447Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
448The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates
449The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales
450The new waterlands? Proceedings of a one day seminar organised by the Sussex Wildlife Trust as part of the RSNC Wildlife Trusts Parnership Water For Wildlife campaign