1 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
2 | Fishery survey of the Congresbury Yeo, 1994 |
3 | Fishery survey of the Horner Water catchment |
4 | Fishery survey of the River Axe catchment |
5 | Fishery survey of the River Yeo catchment |
6 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
7 | Fishery survey of the River Isle catchment |
8 | An assessment of water quality in the River Yarty catchment |