| 326 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
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| 327 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
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| 328 | A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock |
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| 329 | Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare |
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| 330 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |
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| 331 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
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| 332 | 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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| 333 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
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| 334 | Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters |
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| 335 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
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| 336 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
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| 337 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 338 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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| 339 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 340 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 341 | 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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| 342 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 343 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 344 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 345 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 346 | Environmental snapshot for the East of England [version 1] |
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| 347 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 348 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 349 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 350 | The evaluation of Grant/YSU 3800 water quality monitor |
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