| 376 | An audit of performance in the processing of macro-invertebrate samples in 1992 |
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| 377 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
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| 378 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
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| 379 | The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1 |
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| 380 | Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model |
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| 381 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
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| 382 | Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales |
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| 383 | Time of travel study on the River Wandle under two different flow conditions |
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| 384 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
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| 385 | Integrated river corridor assessment : a pilot study of the rivers Wansbeck and North Tyne in Northumbria |
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| 386 | River Teign corridor survey : prepared by Ecologue for the National Rivers Authority (South West Region) |
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| 387 | Catchment management plans : protecting and enhancing the water environment in an integrated manner |
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| 388 | Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd |
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| 389 | Micro low flows average and low flows estimation in the SW region : validation of regional version 1.3 software |
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| 390 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report |
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| 391 | Audit of priority species of rivers and wetlands : riverine and wetland molluscs in South Hampshire and the Isle of Wight |
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| 392 | Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight |
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| 393 | Audit of priority species of rivers and wetlands : Marsh Fritillary in South Hampshire and the Isle of Wight |
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| 394 | Audit of priority species of rivers and wetlands : Bittern Botaurus stellaris in South Hampshire and the Isle of Wight |
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| 395 | Audit of priority species of rivers and wetlands : white-clawed crayfish Austropotambius pallipes in South Hampshire and the Isle of Wight |
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| 396 | Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001) |
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| 397 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
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| 398 | Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software |
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| 399 | River Stour (2), Sudbury : report of a river corridor survey carried out for the National Rivers Authority, Anglian region |
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| 400 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
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