| 26 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
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| 27 | 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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| 28 | Brown trout habitat assessment on the River Bela catchment (as recommended by the strategic fisheries stock Assessment Task Group 1995) |
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| 29 | A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids |
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| 30 | A report on the 1993 strategic stock assessment survey of the Eamont catchment with particular reference to salmonid fish |
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| 31 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
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| 32 | The environment and water resources projects. Volume 1 guidelines for the scoping and environmental assessment of water resources projects |
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| 33 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
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| 34 | A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids |
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| 35 | Guidance for the Development of Housing on Land Affected by Contamination |
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| 36 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
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| 37 | Guidance on the use of Bioassays in Ecological Risk Assessment |
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| 38 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
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| 39 | Model Procedures for the Management of Land Contamination |
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| 40 | A strategic approach to the consideration of environmental harm |
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| 41 | The River Alt/Crossens fish stock assessment 2001 |
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| 42 | Review of fishery regulations on the Rivers Taw and Torridge |
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| 43 | Environmental assessment of selected abandoned minewaters in the North East region |
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| 44 | Stream survey and assessment in the Ashford and Folkestone areas |
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| 45 | The Impact of Grazing and Upland Management on Erosion and Runoff |
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| 46 | Instream Flow Requirements of the River Wissey, Norfolk, Annex C - April 1993
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| 47 | PVC : an evaluation using the Natural Step framework |
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| 48 | The Blackwater River catchment management plan : first annual review 95/96 : Draft Document |
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| 49 | Final report of the Stock Assessment Task Group |
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| 50 | A guide to the National Centre for Risk Analysis and Options Appraisal |
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