2151 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands |
2152 | National marine baseline survey 1995 : Gulliver manual and CD-ROM questions |
2153 | Progress Report August 1982 |
2154 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
2155 | Herbarium Image: Carex flacca |
2156 | Sea trout facts |
2157 | Boreobdella verrucata |
2158 | Report for Welsh Region on selected flood defence schemes and the development of a standard methodology for risk assessment |
2159 | Regional water quality monitoring and surveillance programme for 1993 : biological assessment of discharges on receiving waters |
2160 | Staurastrum, |
2161 | Herbarium Image: Potamogeton praelongus |
2162 | Protozoan, |
2163 | The evaluation of a Partech model 5100 hand-held dissolved oxygen meter (220/26/T) |
2164 | Mallomonas, |
2165 | Herbarium Image: Sparganium emersum |
2166 | Herbarium Image: Galeopsis tetrahit |
2167 | Soil erosion on land cultivated and drained for afforestation |
2168 | Clear Options towards an operational model for the Lee Valley Reservoirs |
2169 | Eudorina colonies, |
2170 | Herbarium Image: Oenanthe fistulosa |
2171 | Filamentous algae, |
2172 | Mallomonas, |
2173 | Presentation on river catchment management plans |
2174 | Tabellaria, |
2175 | Herbarium Image: Rhynchospora alba |