226 | The effects of predation on salmon fisheries |
227 | Syngenta Pond Physchem Data (2000) |
228 | Predation of migratory salmonids |
229 | Brachycentrus subnubilus eggs |
230 | Athripsodes aterrimus |
231 | Agapetus fuscipes pupae |
232 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk F in 2014 |
233 | Rhithrogena haarupi |
234 | Potamophylax latipennis case, |
235 | Winter status and distribution of cormorants, goosanders and red-breasted mergansers in Great Britain with specific reference to the North West NRA Region |
236 | FBA News 70 |
237 | Ceraclea dissimilis larva, |
238 | Setodes argentipunctellus larva, |
239 | Adult Glossosomatid spurs |
240 | Ceraclea dissimilis case, |
241 | Paraleptophlebia submarginata |
242 | Ecdyonurus insignis |
243 | Heptagenia fuscogrisea |
244 | Ecdyonurus torrentis |
245 | Factors affecting natural smolt production |
246 | The Opening Ceremony of The River Laboratory |
247 | Cover of A Key to the Adults and Nymphs of the British Stoneflies (Plecoptera), with Notes on their Ecology and Distribution |
248 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
249 | Front Cover of A Key to the British Fresh- and Brackish-Water Gastropods, with Notes on their Ecology |
250 | Progress Report December 1998 |