1 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
2 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
3 | Impact of the signal crayfish Pacifastacus leniusculus and its associated crayfishery on the River Thame |
4 | Guidance on the use of Bioassays in Ecological Risk Assessment |
5 | Stream survey and assessment in the Ashford and Folkestone areas |
6 | Metallothionein in eels from the Thames Estuary : an indicator of environmental quality |