| 251 | Ecology and the Water Framework Directive |
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| 252 | Snapshots of the environment : regulating major industry |
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| 253 | The introduction of an effective market testing programme for the flood defence function of the National Rivers Authority in the North West Region : certificate in management |
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| 254 | Review of the microtox toxicity test |
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| 255 | Silt - and its effects on the river |
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| 256 | MCERTS : the Environment Agency's monitoring certification scheme |
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| 257 | The effects of predation on salmon fisheries |
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| 258 | Fisheries Assessment Software within the Environment Agency |
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| 259 | Bewdley flood defences : the invisible defences |
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| 260 | The story of a river : Ripples 1 |
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| 261 | Recreation strategy for the River Thames |
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| 262 | Information [on the NRA Anglian Region] |
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| 263 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
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| 264 | The Atlantic Salmon Trust Journal 2011 |
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| 265 | Holding back the sea - ripples 3 |
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| 266 | Fish, fisheries and the Water Framework Directive |
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| 267 | A history of the By Brook |
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| 268 | Coastal flooding in the North West |
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| 269 | Bioaccumulation of metals in the Thames Estuary |
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| 270 | Stock assessment review on the River Teign |
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| 271 | Environmental issues in the Midlands 1995/96 |
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| 272 | Fish found in the tidal Thames |
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| 273 | Stock assessment review on the River Dart |
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| 274 | Humber estuary : state of the environment 1998 |
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| 275 | Invertebrate animals of the tidal Thames |
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