| 851 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 852 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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| 853 | The River Colne Estuary subtidal biological survey 1992 |
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| 854 | A report on the investigation into water contamination at Hauxton, Cambrigeshire |
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| 855 | Fisheries of the middle and lower Wylye and factors affecting their performance |
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| 856 | Scoping guidance for the environmental assessment of projects |
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| 857 | Definition of the Extent and Vertical Range of Saltmarsh |
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| 858 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
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| 859 | Method for assessing the heritage value of net fisheries |
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| 860 | Summary of monitoring activities on the blackwater estuary |
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| 861 | An Investigation of Ecological Change in the Rivers Kennet and Lambourn |
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| 862 | Macroinvertebrates in the Kennet catchment : Part 1 - water quality monitoring |
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| 863 | Alternative Methods For The Biological Classification Of Rivers |
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| 864 | Factors affecting the recruitment of riverine coarse fish: phase 3 |
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| 865 | Medway Estuary fisheries survey 2000 : (incorporating the report for 1997 to 2000) |
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| 866 | Land Use and Fisheries Report of the Pilot Study |
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| 867 | Guide to the use of control charts in water analysis |
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| 868 | A Review of the Brogboroughand Landfill 2000 Test Cells Monitoring Data |
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| 869 | A Review of Methods for Assessing the Hydromorphology of Lakes |
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| 870 | A survey of trace metals in biota of the Mersey estuary 1993 |
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| 871 | Assessment of the distribution of Bembidion testaceum and reasons for its decline |
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| 872 | Post drought soil water recharge : a study of the processes of recharge |
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| 873 | The Identification of Oestrogenic Effects in Wild Fish - Phase II |
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| 874 | Continuous water quality monitoring results for the Carnon river |
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| 875 | An assessment of the NRA algal growth inhibition test : 1993/4 |
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