| 151 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
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| 152 | Impact of the signal crayfish Pacifastacus leniusculus and its associated crayfishery on the River Thame |
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| 153 | The water protection zone (River Dee catchment) designation order : supplementary paper in support of the application |
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| 154 | 1999 annual report on fisheries in the North west incorporating the annual summary of fishery statistics |
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| 155 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
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| 156 | Study of the behaviour and impact of two sewage treatment works of the Thames catchment |
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| 157 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
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| 158 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
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| 159 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
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| 160 | The physical character of rivers and streams in the UK and Isle of Man |
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| 161 | Conservation and recreation: the Wye challenge: volume 1: report of the River Wye project |
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| 162 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
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| 163 | The Ecology and Conservation of the Southern Damselfly (Coenagrion mercuriale - Charpentier) in Britain |
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| 164 | Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity |
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| 165 | Catches of Migratory Fish in the River Don, Aberdeenshire- Consideration of the Availability of Fish |
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| 166 | A review of the performance of Aldershot STW and its effect on the River Blackwater |
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| 167 | Riverside litter : results of the 1990 campaign and a strategy for the future |
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| 168 | Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive |
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| 169 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
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| 170 | The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish |
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| 171 | Salmon and sea trout fishing in the estuary of the River Tavy : a review |
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| 172 | A brief history of the River Stour navigation : 1705 to the present day |
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| 173 | Getting afloat in the Midlands : a guide to using waterways in the region |
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| 174 | An investigation into the effects of Alton sewage works on the River Wey North |
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| 175 | 1994 annual report on fisheries in the North West incorporating the annual summary of fishery statistics |
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