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426Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
427An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
428Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales
429Time of travel study on the River Wandle under two different flow conditions
430Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
431Lower Lee fish mortalities associated with rainfall : including the event of 7/8th September 1993
432Integrated river corridor assessment : a pilot study of the rivers Wansbeck and North Tyne in Northumbria
433River Teign corridor survey : prepared by Ecologue for the National Rivers Authority (South West Region)
434River Stort : draft catchment management plan for flood defence and the environment : May 1991
435Catchment management plans : protecting and enhancing the water environment in an integrated manner
436Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd
437The Blythe/Cole/Bourne catchment management plan : first annual review : July 1994 to July 1995 (NRA Severn-Trent 48)
438Micro low flows average and low flows estimation in the SW region : validation of regional version 1.3 software
439Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report
440Audit of priority species of rivers and wetlands : riverine and wetland molluscs in South Hampshire and the Isle of Wight
441Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight
442Audit of priority species of rivers and wetlands : Marsh Fritillary in South Hampshire and the Isle of Wight
443Audit of priority species of rivers and wetlands : Bittern Botaurus stellaris in South Hampshire and the Isle of Wight
444Audit of priority species of rivers and wetlands : white-clawed crayfish Austropotambius pallipes in South Hampshire and the Isle of Wight
445Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001)
446The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
447Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software
448River Stour (2), Sudbury : report of a river corridor survey carried out for the National Rivers Authority, Anglian region
449River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ )
450River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991