| 426 | A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake |
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| 427 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |
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| 428 | Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system |
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| 429 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
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| 430 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
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| 431 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |
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| 432 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
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| 433 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
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| 434 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
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| 435 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 436 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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| 437 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
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| 438 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 439 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
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| 440 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
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| 441 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 442 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
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| 443 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 444 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 445 | The regulation of salmon angling in Great Britain
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| 446 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 447 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 448 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 449 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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| 450 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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