| 5126 | Conservation annual report - Northumbria and Yorkshire regions 1994/95 |
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| 5127 | Conservation annual report 1995/96 |
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| 5128 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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| 5129 | Conservation requirements of southern damselfly in chalkstream and fen habitats |
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| 5130 | Fisheries survey 1990 : River Coln, River Churn, Ampney Brook : key site monitoring in relation to low flow problems |
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| 5131 | River Tavy EC Freshwater Fish Directive failure 1993 |
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| 5132 | Nene Valley water level management strategy : information status report |
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| 5133 | Nene waterways partnership initiative : strategy consultation document |
|---|
| 5134 | Ouse Washes : barrier banks improvements |
|---|
| 5135 | Physical environment for river invertebrate communities : progress report |
|---|
| 5136 | Planning for the rising tides - the Humber Estuary - consultation on managed realignment: information for the landowners and tenants - June 2002 |
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| 5137 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
|---|
| 5138 | Redgrave and Lopham Fens alleviation scheme : project appraisal report : version 1.0 |
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| 5139 | Report on alternative methods of river bank protection : Norfolk District |
|---|
| 5140 | River quality survey GQA assessment 1998 : Dales area freshwater rivers and canals river reach classification summary 1990-9 |
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| 5141 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
|---|
| 5142 | Notonecta viridis, |
|---|
| 5143 | Trent licensing policy review : executive summary report |
|---|
| 5144 | Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme |
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| 5145 | The River Colne Estuary subtidal biological survey 1992 |
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| 5146 | The use of fertilizer-free buffer strips to protect dyke flora from nitrate pollution on Walland Marsh S.S.S.I |
|---|
| 5147 | Effects of Electric Fishing on Fish - Technical Summary |
|---|
| 5148 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
|---|
| 5149 | Mesotrophic rivers in Anglian region : phase 1 June 1994 |
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| 5150 | Chemical Techniques Manual |
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