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326Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
327Report 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
328A map of the Queen Elizabeth National Park and the area in which the IBP L. George team were situated from late 1966 to 1972.
329The effects of ammonia in discharges from Hogsmill STW on the water quality of the River Thames at Teddington : Summer 1990 an update
3301995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments
331Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
332The Role of Bankside Habitat in River Ecology: The importance of riparian and marginal vegetation on the distribution and abundance of aquatice invertebrates
333The Movements of Atlantic Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Impounded Estuary of the R.Tawe, South Wales
334The 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
335The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
336Audit surveys in the NRA Thames region : a report on the surveys carried out in 1992/93 to assess the retention and enhancement of wildlife habitats during routine dredging operations
337The Movements of Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Lower River and Estuary of the River Conwy, North Wales
338Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993
339Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
340A study of the mayfly parasite Spiriopsis adipophila, Arvy and Peters (1972) (=Sprininella adipophila, Arvy and Delage 1966) in Ephemera danica from the River Pang, a tributary of the River Thames
341A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data
342Warming to the idea : meeting the challenge of climate change in the South West : summary report : south west region climate change impacts scoping study
343A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
344Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region
345Recorded data from the Black Bridge weather station (weather station 2) in the Wensum Catchment between 2010-2011
346The behaviour of adult salmon (Salmo salar L.) in the River Tay as determined by radio telemetry
347Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir
348Recorded data from the Black Bridge weather station (weather station 2) in the Wensum Catchment between 2013-2014
349Recorded data from the Black Bridge weather station (weather station 2) in the Wensum Catchment between 2011-2012
350Recorded data from the Swan Hills weather station (weather station 1) in the Wensum Catchment between 2012-2013