176 | Protecting native crayfish in the Midlands |
177 | Monitoring the trophic state of reservoirs
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178 | Freshwater Algal Flora of the British Isles |
179 | Green Household Index - The Eco-Cal |
180 | Guardians of the water environment (bilingual document) |
181 | Pesticides in the aquatic environment 1996 |
182 | Constructive thinking : save water, save the environment |
183 | The Environment Agency navigations : Thames, Anglian, Southern |
184 | Sustainable water resources for the future |
185 | Pollution control on the River Alt |
186 | A Review of the Application of |
187 | Ecology and the Water Framework Directive |
188 | Review of the microtox toxicity test |
189 | Silt - and its effects on the river |
190 | MCERTS : the Environment Agency's monitoring certification scheme |
191 | Fisheries Assessment Software within the Environment Agency |
192 | The story of a river : Ripples 1 |
193 | Recreation strategy for the River Thames |
194 | Navigations in the Anglian region (EA) |
195 | Fish, fisheries and the Water Framework Directive |
196 | A history of the By Brook |
197 | Coastal flooding in the North West |
198 | Bioaccumulation of metals in the Thames Estuary |
199 | Fish found in the tidal Thames |
200 | Invertebrate animals of the tidal Thames |